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CLASS 52,	STATIC STRUCTURES (E.G., BUILDINGS)
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SECTION I - CLASS DEFINITION

This is the residual class for static structures. It includes on site erected structures generally identified by terms such as: civil engineering, public works, shelter, housing, buildings or masts and other related components used in such structures, e.g., panels, beams, columns. etc. Also, included are selected structurally similar components, such as, table top panels, poles, posts, window sash elements or door panels even though not disclosed as specialized as components of a building structure. Also, are included processes, machines and implements used in the construction of such structures which are not elsewhere provided for.

SECTION II - SUBCLASS REFERENCES TO THE CURRENT CLASS

SEE OR SEARCH THIS CLASS, SUBCLASS:

SECTION III - REFERENCES TO OTHER CLASSES

SEE OR SEARCH CLASS:

SECTION IV - GLOSSARY

ARCHITRAVE

The finish around and extending away from a door or window opening.

BACKER

Means forming an extended surface against which a settable material is cast, e.g., troweled, spread, poured etc., the material when set forming a wear surface or facing.

BARRIER

A construction forming an extended indefinite surface preventing or inhibiting the passage of persons or things, e.g., wall, ceiling, floor, roof or cover.

BLOCK

A module whose depth is substantial relative to its length and height and which in use forms a stable load-bearing member.

COVER

Generally synonymous with "roof" but used where "roof" in some instances may be inapt, e.g., a covering supported by an article, a canopy, a man-hole closure, etc.

DISPARATE ARTICLE

An article which does not form an essential component of a building construction of plural components, but is in the nature of an adjunct having no essential load-bearing, supporting, joining or protective function.

ENCLOSURE

Means surrounding an area or volume to be occupied by persons, animals or goods.

ENTRANCE

An opening for persons or things, but not for a fluid or a mass of particles having a fluid like characteristic.

FACER OR FACING (SEE MODULE)

An element or structure which (1) forms an exposed surface section of a barrier or (2) the panel held by a frame, a framing element or an elongated sustainer, e.g., the movable closure part of a door or window. In the latter respect it differs from a module in that it is not used in repetition to form an extended surface.

FLASHING

Thin sheet of material covering or extending into a joint to deflect liquid from the joint.

LOAD-BEARING

A construction or component which is sufficiently strong and rigid to act as the primary support for other constructions or components against gravity or to resist transverse loading (see sustainer).

MODULAR

A construction utilizing modules.

MODULE

A component of building construction, usually designated by terms such as; brick, block, slab, panel, tile, sheet, precast monolith, etc., which when assembled in repetitious juxtaposition with other such preformed shapes (with or without interposed connecting means or material) define a surface of a construction, e.g., of a wall, ceiling or floor.

MONOLITH

A structure erected in situ by casting a water-settable composition, e.g., plaster or concrete.

PANEL (SEE MODULE)

The term panel is used to denote a thin rigid sheetlike structure which may not be disclosed as used repetitiously, e.g., table top or pane.

PORTAL

Structure defining an opening through a barrier for the passage of light, air, persons or things, e.g., the framing for a door or a window opening.

PREFORM OR PRESHAPE

A component of a building construction which is in completed form before its use at the job site. (Compare Module).

REBAR

An art term for a concrete reinforcing rod. A rebar chair is a device for spacing a rebar from a concrete form.

REINFORCEMENT, EMBEDDED

A body placed within and covered by a cast material or a foraminous member wherein the holes are filled by a cast material.

REVEAL

The sides of a door or window opening between the faces of the barrier.

ROOF (SEE COVER)

A rigid cover extending above and supported by the uppermost termini of walls or columns.

SETTABLE MATERIAL

A component which is applied or formed in a fluent condition but sets or hardens in the final product, e.g., concrete, cement or plaster.

SHAFT (SEE SUSTAINER)

A member which has a limited closed periphery and which is greatly elongated relative to its length. It is generic to "sustainer" in that it may not have a load bearing function.

SPECIFIED

The subclass definition must be referred to.

STIFFENER

Means embedded in cast material or extending between sustainers or load bearing components which act to strengthen a construction in contradistinction to acting as a primary load­bearing or bend-resisting member.

SUSTAINER

A rigid member or construction having a limited closed periphery which is (1) greatly elongated relative to any lateral dimension (2) resists transverse loading and (3) supports or retains other components of a building construction, e.g., stud, joist, beam, or column.

TENDON

A tensioned strandlike component of a unit which places the principal part of the unit under compression.

TILE

A thin, relatively rigid module which when applied repetitiously in edge-to-edge relationship to a backing surface forms an exposed facing

SUBCLASSES

1	CONTROLLED BY CONDITION RESPONSIVE MEANS:
	This subclass is indented under the class definition.  Structure comprising means to sense a condition and to exercise a control operation of a structure or component thereof in response to said condition. SEE OR SEARCH CLASS: 137,  Fluid Handling,   subclasses 67+ for a destructible or deformable control of a fluid device and subclass 468 for a residual thermal responsive valve. 138,  Pipes and Tubular Conduits,   subclasses 26+ for such a device with a pressure compensator. 169,  Fire Extinguishers,   subclasses 56+ for condition responsive control of an extinguishing system and subclass 42 for a fusible connection, per se. 454,  Ventilation,   subclasses 70+ , 75, 229, 238, 239, 255, 256, and 340 for automatic control of ventilating systems.

2.11	SHAPED OR STRENGTHENED BY FLUID PRESSURE:
	This subclass is indented under the class definition.  Structure in which a totally enclosed fluid is utilized to shape, support, or strengthen a building structure or component. (1) Note. The following exemplary locations are noted as providing for or including structure involving the use of an inflating fluid: SEE OR SEARCH THIS CLASS, SUBCLASS: 3, for an article or material supported cover. 63, for an enclosure which includes a flaccid, nonmetallic, or foraminous surfacing. 115, for a fluid pressure actuated, relatively movable shaft assembly. 204.52, for a passage between the internal volume of a double pane panel and the ambient, which passage may be plugged and the internal volume pressurized. SEE OR SEARCH CLASS: 4,  Baths, Closets, Sinks, and Spittoons,   subclass 499 for an air inflatable or air supported covering for a pool, or subclass 588 for an inflatable bath tub for an infant. 5,  Beds,   subclasses 449+ for an inflatable mattress or cushion. 49,  Movable or Removable Closures,   subclass 477.1 inflatable or fluid pressure responsive closure seal. 92,  Expansible Chamber Devices,   subclasses 34+ for a bellows-type, expansible chamber or subclasses 89+ for a collapsible chamber wall portion (e.g., hinged, flexible wall, etc.). 128,  Surgery,   subclass 118.1 for an inflatable pad to press against a human body as part of a method or apparatus of doing a diagnostic test or subclass 865 for an inflatable or expandable ear protector. 138,  Pipes and Tubular Conduits,   subclass 93 for an inflatable closure or plug for a pipe. 152,  Resilient Tires and Wheels,   subclasses 450+ for a pneumatic tire or inner tube. 156,  Adhesive Bonding and Miscellaneous Chemical Manufacture,   subclasses 145+ for a method of encapsulating permanently fluent material in hollow or porous lamina or filling of space between adhered laminae, subclass 156 for a method of using fluid pressure to prevent collapse of hollow structure during assembly and/or joining, or subclass 286 for a method of using direct application of vacuum or fluid pressure during bonding to remove gas from between assembled laminae. 166,  Wells,   subclass 187 for a packer or plug expanded by confined fluid from a central chamber, pump, or plunger. 220,  Receptacles,   subclass 232 for a receptacle having a closure that includes an inflatable gasket or packing. 244,  Aeronautics and Astronautics,   subclass 5 for a heavier-than-air aircraft that has its weight diminished by buoyant gas, subclasses 24+ for aircraft that is lighter than air, subclass 98 for a gas bag inflation control for a lighter-than-air aircraft, or subclass 128 lighter-than-air aircraft gas cell construction and arrangement. 254,  Implement or Apparatus for Applying Pushing or Pulling Force,   subclasses 93+ pushing and pulling implements actuated by fluid pressure. 267,  Spring Devices,   subclasses 64.11+ for a spring device for a vehicle that uses compressible fluid. 273,  Amusement Devices: Games,   subclasses 65+ for an inflatable football or basketball. 277,  Seal for a Joint or Juncture,   for a generic sealing means or process, subclasses 331+ for an inflatable packer for well apparatus, subclass 583 for a dynamic circumferential contacting inflatable seal or seal biased by an inflatable member, subclass 605 for a hollow, fluid filled or inflatable static contacting seal for a pipe, conduit, or cable, or subclass 646 for an inflatable static contact seal for other than an internal combustion engine, or pipe, conduit, or cable. 383,  Flexible Bags,   subclass 3 for an inflatable bag. 441,  Buoys, Rafts, and Aquatic Devices,   subclasses 40+ for an inflatable raft or subclasses 90+ for a personal water rescue or life protecting flotation device including mechanical inflation means. 446,  Amusement Devices: Toys,   subclasses 220+ for an inflatable toy. 450,  Foundation Garments,   subclass 38 for a device designed to fit a breast or chest (e.g., brassieres, etc.) of a human body to protect, compress, support, restrain, or alter its configuration including inflatable or liquid-containing chambers. 600,  Surgery,   subclass 31 for an implanted urinary or colonic incontinent device or treatment (e.g., artificial sphincters, etc.) having fluid actuated occluding means (e.g., inflatable cuff, etc.) for a human body. 604,  Surgery,   subclasses 96.01+ for treating material introduced or removed through a conduit, holder, or implantable reservoir inserted in a human body orifice and inflated in a human body (e.g., inflatable nozzle, dilator, balloon catheter, occluder, etc.). 606,  Surgery,   subclasses 191+ for an internal pressure applicator (e.g., dilator) that is inflatable or expandable by fluid or subclass 202 for a pneumatic cuff external pressure applicator.

2.12	Loading dock doorway seal:
	This subclass is indented under subclass 2.11.  Structure wherein the building structure or component comprises one or more tubular members, which members are mounted around at least a substantial part of the periphery of an opening defining a passage into and out of a building (e.g., a warehouse) and which will, when inflated, perform a sealing and cushioning function. (1) Note. The members are intended, most commonly, to be engaged by the rear of a body of a vehicle which is being loaded or unloaded through the opening, the purpose being to minimize the infiltration of outside air into the building and the vehicle. (2) Note. The presence or absence of a conventional closure member for the opening is immaterial insofar as the subject matter of this subclass is concerned.

2.13	Confined tubular element exerts force:
	This subclass is indented under subclass 2.11.  Structure wherein the building structure or component comprises a tubular element which is located between two, relatively rigid members and which, when inflated, develops an outward force against the members. (1) Note. In some instances, both of the member are fixed, but, in other instances, at least one of the members is intended to have some degree of movement.

2.14	For sealing a closure panel:
	This subclass is indented under subclass 2.13.  Structure wherein the tubular element is utilized as a seal for a plate-like member (e.g., of glass, wood, etc.) which serves to close a passage.

2.15	Form for hardenable material:
	This subclass is indented under subclass 2.11.  Structure wherein the building structure or component comprises a member, often sheetlike in nature, which is shaped by the fluid it encloses and which, in turn, serves to shape or support one or more elements of a building that are being formed from material initially lacking a shape-retaining property, but which material subsequently undergoes a change of state and becomes relatively rigid. (1) Note. Upon the change of state of the material, the member often becomes superfluous, and, in some instances, is removed.

2.16	Fluid pressure is subatmospheric:
	This subclass is indented under subclass 2.11.  Structure wherein the enclosed fluid is at a pressure which is less than that of the ambient air; i.e., a vacuum of one degree or another has been established. (1) Note. The density of certain materials can be increased by subjecting them to a vacuum.

2.17	Including ingress/egress provision:
	This subclass is indented under subclass 2.11.  Structure wherein the enclosure includes a system, device, element, etc., which enables entry or exit, usually that of persons. (1) Note. Included here is an air lock, a door, a flap, etc.

2.18	Intersecting tubular elements form framework:
	This subclass is indented under subclass 2.11.  Structure wherein the building structure or component comprises tubular elements which intersect one another and which, when inflated, form the frame members of a building.

2.19	Supported on rigid-walled structure:
	This subclass is indented under subclass 2.11.  Structure wherein the building structure or component comprises a sheetlike member which rests on and is affixed to the relatively rigid walls of an open-top enclosure. (1) Note. The member sometimes serves as an upward extension of the enclosure, but, in other instances, is more nearly in the nature of a cover therefor.

2.21	Upstanding column (e.g., mast, tower):
	This subclass is indented under subclass 2.11.  Structure wherein the building structure or component comprises a tubular member, anchored at one end, which is extended by the fluid into a generally vertical position. (1) Note. A structure of this subclass may be "self-erecting". (2) Note. A structure of this subclass may consist of a plurality of members connected end-to-end.

2.22	Comprising spaced, sheetlike members and fluid chamber therebetween:
	This subclass is indented under subclass 2.11.  Structure wherein the building structure or component comprises two or more flexible panels which are in a spaced-apart, more or less parallel relationship with one another and which are joined, at least along their perimeters, in a fluid-tight manner.

2.23	Including subdividing elements:
	This subclass is indented under subclass 2.22.  Structure wherein a plurality of elements (e.g., webs), extending more or less transversely of, and fluid-tightly joined to, the members are provided for dividing the chamber into a plurality of smaller chambers.

2.24	Sheetlike member comprises plural, edge-joined sections:
	This subclass is indented under subclass 2.11.  Structure wherein the building structure or component is a flexible panel which is fabricated from number of smaller sections which have been joined (e.g., by a seam) to one another, fluid-tightly, along their perimeters.

2.25	Including holddown means:
	This subclass is indented under subclass 2.11.  Structure wherein the building structure or component is provided with means for securing it to an underlying object, structure or surface. (1) Note. Frequently, the building structure or component is being anchored to the ground.

2.26	Comprising strandlike element:
	This subclass is indented under subclass 2.25.  Structure wherein the hold-down means, or a component thereof, comprises at least one elongated, nonrigid elements (e.g., a cable, a rope, etc.).

3	ARTICLE OR MATERIAL SUPPORTED COVER:
	This subclass is indented under the class definition.  Structure including means covering and supported by an article or a body of material, which article or body of material is not part of a static building structure, and which is not configured for a specific article. SEE OR SEARCH CLASS: 100,  Presses,   subclasses 65+ for such structure compacting material within a silo. 135,  Tent, Canopy, Umbrella, or Cane,   subclasses 87+ for nonarticle supported canopies. 150,  Purses, Wallets, and Protective Covers,   subclasses 154+ for a protective cover of flaccid material for covering, and being supported by, a specific article, and see the Notes and the extensive Search Class notes thereof. 220,  Receptacles,   subclasses 216+ for a receptacle with a cover which floats on its contents.

4	With article or ground penetrating retainer:
	This subclass is indented under subclass 3.  Structure including a feature which retains the cover and penetrates the ground or the article covered. SEE OR SEARCH THIS CLASS, SUBCLASS: 155+, for an earth piercing or expanding anchor.

5	Flexibly connected strips or slats:
	This subclass is indented under subclass 3.  Structure which comprises a plurality of strips or slats fastened together by means which allow pivoted motion of one strip or slat relative to another. SEE OR SEARCH THIS CLASS, SUBCLASS: 342+, for openly spaced slat type lath. SEE OR SEARCH CLASS: 160,  Flexible or Portable Closure, Partition, or Panel,   subclasses 218+ for movably interconnected slats or strips of more general utility.

6	WITH STADIUM OR AUDITORIUM FEATURE:
	This subclass is indented under the class definition.  Subject matter specialized to the presentation of an attraction or accommodation of an audience group, such specialized structure including (1) an arrangement of seats or slopes relative to the locus of the attraction, (2) a structure having means peculiar to the accommodation of the audience or (3) a stage, screen or area of activities which aid in the presentation of or serves as the locus of the attraction. SEE OR SEARCH THIS CLASS, SUBCLASS: 36.1+, for an enclosure combined with a piece of furniture or a fixture of more general application, e.g., a movable platform or support even though defined as a stage or theater seat but which is capable of use in other environments or individual seats. 182+, for a stepped structure which could as well be used as strips, e.g., do not define seat and foot rest portions. SEE OR SEARCH CLASS: 472,  Amusement Devices,   particularly subclasses 75+ for an apparatus or setting intended to be used on or in cooperation with the stage of a theater and subclasses 92+ for a playing or exhibition area enclosure.

7	Movable stage:
	This subclass is indented under subclass 6.  Structure including a movable floor or platform particularly related to a proscenium or to a seating arrangement for viewers. SEE OR SEARCH CLASS: 182,  Fire Escape, Ladder, or Scaffold,   appropriate subclass for a platform of more general application.

8	Seating arrangement:
	This subclass is indented under subclass 6.  Structure relating to a particular arrangement of seats relative to an enclosure or area of the presentation or attraction. SEE OR SEARCH THIS CLASS, SUBCLASS: 6, for an outdoor theatre having traffic paths so that vehicles are disposed in a desired arrangement and 174+ for another structure with a traffic guiding feature.

9	Shiftable seating section:
	This subclass is indented under subclass 8.  Structure including a section of seats mounted for movement with respect to another section or to the floor upon which it rests. SEE OR SEARCH THIS CLASS, SUBCLASS: 183, for a mere stepped structure of more general application having interconnected relatively movable components.

10	Power means:
	This subclass is indented under subclass 9.  Structure wherein the shifting of the section is accomplished by, or aided by means releasing stored or generated energy, e.g., motor, spring, etc.

11	COVER WITH SURFACE WATER RECEIVER AT EAVE OR VALLEY:
	This subclass is indented under the class definition.  Subject matter which forms a cover (roof) having an edge or forms a valley and in which there is a means located in, at or near the edge of the valley which provides for the drainage or discharge of liquid flowing from the upper surface of the cover into the means. SEE OR SEARCH THIS CLASS, SUBCLASS: 95, for a gable or eave construction with water discharge means for handling liquid from a subjacent area of the cover. SEE OR SEARCH CLASS: 248,  Supports,   subclass 48.1 for an eave trough support. 405,  Hydraulic and Earth Engineering,   subclasses 119+ for a trough or channel having no feature relating it to a roof.

12	With separator; e.g., strainer:
	This subclass is indented under subclass 11.  Structure comprising means for preventing debris from (1) entering the eave trough or (2) entering a downspout or other structure associated with said eave trough. SEE OR SEARCH CLASS: 210,  Liquid Purification or Separation,   appropriate subclasses, particularly subclasses 154+ , 459+, and 473+ for a strainer, per se, or a strainer combined with an eave trough which does not have any features particularly adapting it for association with a roof.

13	Between oppositely sloping sections:
	This subclass is indented under subclass 11.  Structure wherein there is means forming a gutter located at the vertex of two portions of a cover construction which slope towards each other. SEE OR SEARCH THIS CLASS, SUBCLASS: 58+, for exterior type flashing.

14	With additional subsurface liquid receiver:
	This subclass is indented under subclass 13.  Structure in which there is means forming a second gutter on the under side of the cover structure.

15	Inwardly of edge:
	This subclass is indented under subclass 11.  Structure in which the means forming a trough is, at least in part, within the peripheral edge of the cover. SEE OR SEARCH THIS CLASS, SUBCLASS: 24+, for cover means to retain solid material deposited on the roof, e.g., an anti-snow slide.

16	With downspout:
	This subclass is indented under subclass 11.  Structure including means forming or connected to a downspout. SEE OR SEARCH THIS CLASS, SUBCLASS: 12, for a gutter or eave trough with strainer.

17	INSULATED RAILWAY CAR-TYPE ROOF:
	This subclass is indented under the class definition.  Structure peculiar to railway car roofs combined with means situated in the roof under its exterior covering acting to inhibit or retard the passage of heat, sound, vibrations, etc. SEE OR SEARCH THIS CLASS, SUBCLASS: 144+, for a building construction with an exposed surface with an acoustical feature, and see notes. SEE OR SEARCH CLASS: 105,  Railway Rolling Stock,   subclasses 238.1+ for railway rolling stock comprising a special car body.

18	CLERESTORY OR SAW-TOOTH ROOF:
	This subclass is indented under the class definition.  Structure wherein (1) at least one portion of the roof is offset to form a plurality of roof surfaces at different levels, said offset portion being substantially coextensive with one dimension of the roof or (2) the roof surface has distinct surfaces inclined from a common plane to form a serrated roof. SEE OR SEARCH THIS CLASS, SUBCLASS: 200, for a cupola or turret construction, i.e., a small building extending upwardly of a roof which as an entity is within the outer periphery of a roof. 639+, for a truss member of more general utility forming a peak or curved chord.

19	WITH ENTRANCE FOR PERSONS OR OBJECTS IN HORIZONTAL OR INCLINED COVER:
	This subclass is indented under the class definition.  Structure comprising a horizontal or inclined cover and entrance means defining an opening for persons or objects which pass through the cover.

20	With additional enclosure structure; e.g., manhole:
	This subclass is indented under subclass 19.  Structure in which the cover is supported by a wall construction enclosing a space which is entered through the opening. SEE OR SEARCH THIS CLASS, SUBCLASS: 131+, 192+, 198+, 200, 204.1+, 218, 219, 220.1+, 302.1+, and 553 for a building construction with a material (e.g., air or water) port, duct or channel.

21	Masonry or concrete:
	This subclass is indented under subclass 19.  Structure including a masonry or concrete component which is constructed entirely of masonry or concrete.

22	SPECIFIED ROOF SPACED FROM CEILING:
	This subclass is indented under the class definition.  Structure including means forming the uppermost exposed surfacing of a building and having features peculiar to such use, e.g., a ridge, arch, coping, inclined rafter, etc., combined with a ceiling construction which is openly spaced from said means. SEE OR SEARCH THIS CLASS, SUBCLASS: 275+, for a construction of laterally related modules which form an intersection. 479+, for a construction of face to face barrier sections spaced by an internal frame or shaft.

23	COVER WITH EXTERIOR HOLDDOWN:
	This subclass is indented under the class definition.  Structure including a rod-like member extending over the outside of a building structure, usually the roof, and acting to hold such structure to the ground or substructure. SEE OR SEARCH THIS CLASS, SUBCLASS: 4, for an article supported cover which may utilize exterior hold-down strands.

24	COVER WITH PROJECTING RESTRAINER; E.G., SNOW STOP:
	This subclass is indented under the class definition.  Structure including means for preventing or restraining the movement of foreign objects or material not permanently part of the roof; e.g., anti-slides for snow. SEE OR SEARCH THIS CLASS, SUBCLASS: 101, for an animal, e.g., bird, blocker which is a trap, scarer or lateral projection.

25	Rod-type with plural supports:
	This subclass is indented under subclass 24.  Structure comprising a horizontal rod-like portion supported by a plurality of spaced members. SEE OR SEARCH THIS CLASS, SUBCLASS: 677+, for a spacer-positioner for a rod, e.g., a support spacer reinforcing a rod from a support.

26	Restrainer having integral penetrator:
	This subclass is indented under subclass 24.  Structure comprising means to penetrate the base which supports the means for restraining movement of foreign objects.

27	INCLUDING COMPONENT (E.G., WALL) DESIGNED TO RECEIVE A DISPARATE ARTICLE HAVING DISPARATE ARTICLE MOUNTED THERETO:
	This subclass is indented under the class definition.  Structure having a modification of a static structure or component for attaching an article, in which the article is not essential to the subject matter of this class. (1) Note. The exemplary classes and subclasses noted here below under "SEARCH CLASS" provide for an article or article support installed in means forming an enclosure or part thereof. Many classes provide for static type devices, e.g., supports or furniture, and take such combinations wherein no structure is defined other than that required to accommodate or isolate the article provided for such a class. Others take such combinations relating to operative apparatus wherein an operating unit or significant characteristic for such a class is defined, e.g., electrical device or a burner, wherein the enclosure is a furnace, a casing for a machine, a tool, etc. Others are referred to in subclasses indented hereunder or in the class definition of this class. SEE OR SEARCH THIS CLASS, SUBCLASS: 6+, for a building combined with an auditorium or theatre feature. 24, for a projecting object restrainer. 57, for a finial or cresting. 73, for a cantilevered rigid barrier, e.g., rigid awnings. 101, for an animal blocker which is a trap scarer or lateral projection. 129, through 133, for a burial vault and adjunct. 173.1, for static structures combined with subject matter from another class. 220.1+, for a service duct including an electrical conduit within a barrier. 273, for a flexible shaped or attached floor covering. 698+, for anchor or ties of more general application. 716.1+, for an in situ attached channel or trim strip which may be disclosed as enclosing a wire or pipe. SEE OR SEARCH CLASS: 5,  Beds,   subclasses 2.1 , 10.1 and 159.1. 62,  Refrigeration,   subclasses 259.1+ . 73,  Measuring and Testing,   subclass 431 . 89,  Ordnance,   subclass 36.04 104,  Railways,   subclasses 27+ . 108,  Horizontally Supported Planar Surfaces,   subclasses 42+ . 160,  Flexible or Portable Closure, Partition, or Panel,   subclasses 19+ . 174,  Electricity: Conductors and Insulators,   subclasses 158+ and 480-507. 211,  Supports: Racks,   subclasses 87+ . 220,  Receptacles,   subclasses 3.3+ . 248,  Supports,   appropriate subclasses. 297,  Chairs and Seats,   subclasses 14+ and 147. 312,  Supports: Cabinet Structure,   subclasses 242 , 245+, and 351.1+. 343,  Communications: Radio Wave Antennas,   subclasses 872+ . 361,  Electricity: Electrical Systems and Devices,   subclasses 600+ .

27.5	With a telephone (e.g., booth or stand):
	This subclass is indented under subclass 27.  Static structure or component which encloses or supports an audio transmission and receiving means. SEE OR SEARCH THIS CLASS, SUBCLASS: 764+, for sheet like sections between framing members.

28	Artificial illumination means:
	This subclass is indented under subclass 27.  Structure wherein the article is an artificial illuminating means. SEE OR SEARCH CLASS: 362,  Illumination,   subclasses 145+ for combined light and structure there provided for. The line between this class (52) and Class 362 subclass is: Class 362, subclasses 145+ takes structure illuminated by artificial means or merely supporting illuminating means. Class (52) takes building structure including features having functions in addition to merely supporting the illuminating means or forming the enclosure, barrier or other structure illuminated. In interpreting this line the presence of a claim to building structure not including illuminating means is considered conclusive of the fact that such additional function features are present.

29	Mounted for movement:
	This subclass is indented under subclass 27.  Structure wherein the securing means causes or permits movement of the article. SEE OR SEARCH THIS CLASS, SUBCLASS: 36.4, for a structure wherein the article is a fixed bed, chair, table or shelf. SEE OR SEARCH CLASS: 483,  Tool Changing,   generally for apparatus or method for transferring tools combined with support or storage means.

30	Elevator in multistory:
	This subclass is indented under subclass 29.  Structure comprising a multi-level structure provided with a platform and hoisting machinery therefor for conveying persons or goods to or from the different levels. SEE OR SEARCH CLASS: 187,  Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle,   appropriate subclasses for an elevator and building combination wherein no more structure of the building is defined than is necessary to support the elevator.

31	Revolving or endless-type conveyor:
	This subclass is indented under subclass 29.  Structure wherein the article, device or adjunct includes means for conveying, or aiding in the conveying of articles which means includes a revolving member or endless web or strand type conveyor wherein the article is readily removable from the conveyor. SEE OR SEARCH CLASS: 198,  Conveyors: Power-Driven,   appropriate subclasses for such apparatus combined with a mere enclosure, particularly subclass 860.3 .

32	Swinging:
	This subclass is indented under subclass 29.  Structure wherein the supporting means can oscillate about a fixed axis.

33	Articles form traffic path arrangement:
	This subclass is indented under subclass 27.  Structure wherein an article or articles or adjunct, are so arranged so as to form a defined path for traffic, e.g., a store with a defined furniture arrangement. SEE OR SEARCH THIS CLASS, SUBCLASS: 174+, for other structure with a traffic guiding feature.

34	Lavatory fixture:
	This subclass is indented under subclass 27.  Structure wherein the article is a fixture for receiving body waste matter or for washing. SEE OR SEARCH CLASS: 4,  Baths, Closets, Sinks, and Spittoons,   appropriate subclass for apparatus having a fixture with a feature for the purpose of that class, e.g., drains, flow lines, etc. This class (52) takes (1) structures merely forming enclosures or barriers, (2) joints between a lavatory fixture and a barrier or (3) an in situ type enclosure having features with functions other than merely enclosing a class 4 device.

35	Wall juncture (e.g., bathtub surround kit):
	This subclass is indented under subclass 34.  Wall juncture (e.g., bathtub surround kit): Structure in which a discrete connector joins at least an edge of a lavatory fixture; e.g., tub or basin and a wall.

36.1	Task-area type repositionable component (e.g., modular booth, workstation, or concession stand):
	This subclass is indented under subclass 27.  Component in which user or work related equipment is self supporting and is designed to be assembled and disassembled (i.e., transportable). SEE OR SEARCH THIS CLASS, SUBCLASS: 79.1+, for a floor to ceiling assembly; e.g., wall, defining an occupiable space. 205, for a partition framed for a door or window. 481.2, for demountable partitions separating two areas.

36.2	With top covering:
	This subclass is indented under subclass 36.1.  Task area component including a ceiling above an occupant.

36.3	Fireplace mantel:
	This subclass is indented under subclass 27.  Component in which a casing and shelf are attached to both a portion of the static structure and a framed opening made in a chimney to hold an open fire.

36.4	Component having specific attachment for an article comprising a horizontal, planar surface (e.g., shelf, bed):
	This subclass is indented under subclass 27.  Component which is specifically designed or modified for furniture of the type having a relatively level area lying in a plane that carries an item, items, or a person. (1) Note. Articles that have means for mounting on an existing wall, floor, or ceiling are classified with the article. (2) Note. A static structure component that is made to incorporate the article is classified in Class 52. SEE OR SEARCH THIS CLASS, SUBCLASS: 6, for a static structure including an auditorium or stadium feature arranged relative to a center or attraction. 29+, for an article mounted for movement. SEE OR SEARCH CLASS: 5,  Beds,   subclasses 2.1 , 10.1+, and 159.1 for specific bed structure with a static structure. 108,  Horizontally Supported Planar Surfaces,   subclasses 33+ and 42+ for specific planar surface structure with a static structure. 160,  Flexible or Portable Closure, Partition, or Panel,   subclasses 19+ for specific partition structure with a static structure. 182,  Fire Escape, Ladder, or Scaffold,   subclasses 222+ for a ladder, scaffold, or mast with a workman"s platform with a static structure. 211,  Supports: Racks,   subclasses 87.01+ for specific rack structure with a static structure. 248,  Supports,   appropriate subclasses for specific supports (e.g., shelf brackets). 297,  Chairs and Seats,   subclasses 14+ and 147 for specific chair or seat structure with a static structure. 312,  Supports: Cabinet Structure,   subclasses 242 , 245+, and 351.1+ for specific cabinet structure with a static structure.

36.5	Connecting feature for modular-type panels having article (e.g., cabinet, shelf bracket) attachment:
	This subclass is indented under subclass 36.4.  Component specific attachment in which a means securing two edge-abutting thin rigid sheet-type members includes a means for supporting the horizontal planar surface.

36.6	Including a slotted tubular portion:
	This subclass is indented under subclass 36.5.  Connecting feature in which the securing means consists of a hollow elongated cylindrical-like section with apertures for the article holding piece.

37	On or adjacent portal frame; e.g., window cleaner’s hook:
	This subclass is indented under subclass 27.  Structure wherein the article support means is attached to or adjacent a door or window frame, usually a window washer"s hook to which a safety belt may be attached. SEE OR SEARCH CLASS: 49,  Movable or Removable Closures,   subclasses 50+ for a movable or removable shield which blocks a passage vacated by a closure. 182,  Fire Escape, Ladder, or Scaffold,   subclasses 53+ for a balcony-like platform detachably mounted in a window opening. 211,  Supports: Racks,   subclasses 87.01+ for a rack with means specializing it for mounting on a window frame.

38	Sign; e.g., nameplate or ornament:
	This subclass is indented under subclass 27.  Structure wherein the disparate article is a sign, e.g., name plate or ornamental plaque. SEE OR SEARCH THIS CLASS, SUBCLASS: 103+, for a structure which, as a whole, serves as a marker or monument and see notes thereto. 105, for a building component with indicia. SEE OR SEARCH CLASS: 40,  Card, Picture, or Sign Exhibiting,   subclass 124.5 for memorial tablets and subclasses 541+ for illuminated signs and subclasses 584+ for signs, and see the reference to Class 52 in the class definition of Class 40.

39	Supported from ceiling:
	This subclass is indented under subclass 27.  Structure in which there is means supporting the disparate article from means forming a ceiling, i.e., the under side of a roof or floor. SEE OR SEARCH CLASS: 248,  Supports,   subclasses 317+ for a suspended support of more general application.

40	On shaft or tower:
	This subclass is indented under subclass 27.  Structure in which the disparate article is supported by an elongated rigid structure, i.e., pole, post or mast. SEE OR SEARCH THIS CLASS, SUBCLASS: 110, for a shaft mounted on a vehicle shell. 651.01+, for a three dimensional open-work, particularly subclass 649 for a mast with distinct terminal structure, e.g., a horned type power line tower. 697, for a shaft with braced cross arm. 831, for a miscellaneous shaft (e.g., pole, post, column, etc.). SEE OR SEARCH CLASS: 174,  Electricity: Conductors and Insulators,   subclasses 40+ , particularly subclasses 45 and 149 for elongated members, e.g., poles and posts, having claimed features specialized to electrical use such as: (1) positive recitation of an electrical conductor, (2) an insulator supporting or retaining an electrical conductor or (3) means supporting said insulator. 220,  Receptacles,   subclasses 475 , 567, and 628+ for an elevated tank involving specific receptacle structure. 248,  Supports,   subclasses 127+ , particularly subclass 146 for a stand not involving a specific in situ erected article supporting skeleton tower. 256,  Fences,   for a fence or post having features for retaining a wire or rail.

41	ROOF RUNNING BOARD OR SADDLE:
	This subclass is indented under the class definition.  Structure forming a walkway above a roof or forming a support (saddle) for such a walkway, usually present on a railway car.

42	Shaped to accommodate seam:
	This subclass is indented under subclass 41.  Structure in which the roof covering includes a seam and the walkway conforms to the shape of the seam.

43	Also ridge cap:
	This subclass is indented under subclass 42.  Structure in which the walkway or saddle also conforms to and accommodates means forming a ridge cap extending along the roof.

44	Attached to seam:
	This subclass is indented under subclass 41.  Structure in which the walkway is fastened to a roof seam. SEE OR SEARCH THIS CLASS, SUBCLASS: 42+, for walkways conforming to a roof seam.

45	RAILROAD CAR ROOF CONSTRUCTION:
	This subclass is indented under the class definition.  Structure comprising roof construction peculiar to railroad cars. SEE OR SEARCH THIS CLASS, SUBCLASS: 17, for an insulated car roof. 18, for a clerestory or sawtooth roof. 41+, for a roof with running board or saddle. SEE OR SEARCH CLASS: 105,  Railway Rolling Stock,   subclasses 238.1+ for railway rolling stock comprising a special car body.

46	Continuous carline; e.g., discrete coextensive rafter:
	This subclass is indented under subclass 45.  Structure comprising a covering supporting member (carline) which extends laterally of the roof and is substantially coextensive with the transverse dimension of the car.

47	And longitudinal ridge:
	This subclass is indented under subclass 46.  Structure associated structurally with a ridge running centrally and longitudinally of the car roof.

48	Purlin or cross-bracing:
	This subclass is indented under subclass 46.  Structure comprising a plurality of carlines and interconnecting structural members extending longitudinally of the roof or diagonally of the carlines.

49	Superjacent covering strip:
	This subclass is indented under subclass 46.  Structure comprising a cover strip overlying the carline and a joint between two juxtaposed roofing sheets, said strip being substantially coextensive with the joint. SEE OR SEARCH THIS CLASS, SUBCLASS: 459+, for a surfacing with a strip covered joint of more general application.

50	Laterally verging sections:
	This subclass is indented under subclass 46.  Structure in which the carline is composed of distinct sections which diverge or converge toward each other in a nonvertical plane or (2) form chords of a truss which diverge or converge. SEE OR SEARCH THIS CLASS, SUBCLASS: 639+, for a peaked truss of more general application.

51	Separate end fastener or support:
	This subclass is indented under subclass 46.  Structure including a separate support or connecting means attached to the end of a carline and engaging a vertical support, e.g., car wall.

52	Over juncture of covering sheets:
	This subclass is indented under subclass 46.  Structure in which the carline is positioned above the joint between plural covering sheets. SEE OR SEARCH THIS CLASS, SUBCLASS: 459+, for similar structure of more general utility.

53	Transverse sustaining rib integral with covering:
	This subclass is indented under subclass 45.  Structure comprising one or more transversely extending ribs formed integrally with the roof sections, and rib being substantially coextensive with the transverse dimension of the roof.

54	Central discrete ridge member:
	This subclass is indented under subclass 45.  Structure comprising a central cover sustaining member elevated above the edges and extending longitudinally of the roof. SEE OR SEARCH THIS CLASS, SUBCLASS: 47, for a carline and longitudinal ridge construction.

55	Relatively movable covering sections:
	This subclass is indented under subclass 54.  Structure including relatively movable roof sheets, usually to compensate for car motion. SEE OR SEARCH THIS CLASS, SUBCLASS: 204.1+, for another construction with a feature for a closure, e.g., a removable panel over an opening. 573.1, for a residual structure having means accommodating a dimensional variation responsive to varying conditions.

56	Covering sheet with overhanging continuing edge section:
	This subclass is indented under subclass 45.  Structure comprising a continuation of the facing member of the roof which overhangs the junction of the roof and car walls. SEE OR SEARCH THIS CLASS, SUBCLASS: 11+, for a cover with section overhanging a gutter. 94+, for another gable or eave terminal construction.

57	ROOF FINIAL OR CRESTING:
	This subclass is indented under the class definition.  Structure including ornamental means at a ridge or peak of a roof. SEE OR SEARCH CLASS: 428,  Stock Material or Miscellaneous Articles,   subclasses 3 through 30,and 542.2+ for a miscellaneous ornamental article not provided for elsewhere.

58	EXTERIOR-TYPE FLASHING:
	This subclass is indented under the class definition.  Structure including sheet material on the exterior of a building structure which material is anchored at at least one edge and extends over a joint of the structure. SEE OR SEARCH THIS CLASS, SUBCLASS: 94+, for a gable or eave covering sheet material often termed "roof edge flashing". 101, for an insect blocking means, e.g., termite shield. 302.5, for a liquid directing sheet material disposed within the confines of a barrier. 408+, for a sheet laminae separating components of an in situ construction, e.g., through wall type flashing. 459+, for a construction of more general application involving a strip covering a juncture of panels. SEE OR SEARCH CLASS: 285,  Pipe Joints or Couplings,   subclasses 42+ for a roof or floor drain type flashing forming a seal around a duct or pipe.

59	Raggle block:
	This subclass is indented under subclass 58.  Structure including a block forming part of a vertical structure and having a groove which receives part of the flashing. (1) Note. For definition of a "BLOCK" see glossary.

60	Interfitting parts:
	This subclass is indented under subclass 58.  Structure wherein the sheet material comprises at least two interfitting sections.

61	Within wall:
	This subclass is indented under subclass 60.  Structure wherein the parts which interfit are within a vertical structure, i.e., wall.

62	Extending into wall:
	This subclass is indented under subclass 58.  Structure wherein a part of the sheet material extends into a wall.

63	ENCLOSURE INCLUDING FLACCID NONMETALLIC OR FORAMINOUS SURFACING:
	This subclass is indented under the class definition.  Structure forming a complete enclosure and including a thin, flexible, flaccid, nonmetallic or foraminous membrane which forms an exposed surfacing and is stretched between elongated members of its substructure. SEE OR SEARCH THIS CLASS, SUBCLASS: 2.11+, for a structure strengthened by internal fluid pressure, e.g., inflated. 3+, for an article supported cover. 64+, for a collapsible type structure of rigid panels interconnected for repositioning. 222, for a tensioned sheet facing. 273, for a shaped or edge attached flexible covering, e.g., carpet, in contact with a barrier. 393+, for a relatively yieldable preformed separator. 404.1+, for insulation in a hollow cavity. 518+, for a shingle type surfacing. 782.1+, for a composite panel. SEE OR SEARCH CLASS: 135,  Tent, Canopy, Umbrella, or Cane,   subclasses 87+ for structures having a flexible covering without rigid panels preformed before in situ erection and see the reference to Class 135 in the class definition of Class 52. 312,  Supports: Cabinet Structure,   subclasses 3+ for an enclosure having a flexible covering and also an article support.

64	BARRIER OR MAJOR SECTION MOUNTED FOR IN SITU REPOSITIONING; E.G., REARRANGEABLE ORROTATABLE:
	This subclass is indented under the class definition.  Structure including at least one component which is a wall, ceiling, roof, cover section or major section thereof which are fixedly mounted for repetitious or continuous movement relative to a base without total disconnection therefrom for purposes of changing the size or function of the structure or a portion thereof or providing continuous movement during use, e.g., revolving building. (1) Note. A movable closure, e.g., door or window is not a barrier component except where a door or window constitutes a major section. SEE OR SEARCH THIS CLASS, SUBCLASS: 7, for a movable stage combined with a static structure forming an enclosure therefor. 29, for a movable support for a disparate article. 55, for a car roof with a relatively movable section. 63, for an enclosure including as a component a nonmetallic flexible surfacing section. 79.1+, for a three dimensional sub- enclosure which in use is often assembled with another enclosure. 111+, for a tower or mast with powered motive means. 122.1+, for a structure with hoist or handle means. 127.1+, for another structure with an adjunct provided solely for facilitating assembly or disassembly. 143, for a structure with means transporting it from place-to-place. 183, for a stepped structure with interconnecting relatively movable components. 204.1+, for a structure having means forming a window or door opening. SEE OR SEARCH CLASS: 49,  Movable or Removable Closures,   appropriate subclasses for a repetitiously movable closure providing for the passage of persons or things through a barrier. 105,  Railway Rolling Stock,   subclasses 238.1+ , especially subclasses 377.01+ and 379 for a freight car with a movable body component. 135,  Tent, Canopy, Umbrella, or Cane,   for a tent with a foldable frame and see the reference to that class in subclass 85 of this class. 160,  Flexible or Portable Closure, Partition, or Panel,   for such a structure which does not form an enclosure for a usable space. 296,  Land Vehicles: Bodies and Tops,   subclasses 177+ for a collapsible vehicle body and subclasses 107.01+ for a let-down-type vehicle top.

65	Rotatable about vertical axis:
	This subclass is indented under subclass 64.  Structure wherein the barrier or major section thereof is mounted for rotation in a horizontal plane about a vertical axis. SEE OR SEARCH THIS CLASS, SUBCLASS: 7, for a theater with a movable stage. 31, and 32, for an enclosure with a disparate article support mounted for swinging or rotation. SEE OR SEARCH CLASS: 472,  Amusement Devices,   particularly subclasses 1+ for an amusement roundabout appropriate therefor.

66	Roof movable as entity relative to its substructure:
	This subclass is indented under subclass 64.  Structure wherein the movable barrier is a complete roof which is connected to and movable as an entity relative to its supporting columns or walls defining or within an area normally covered by the roof. SEE OR SEARCH THIS CLASS, SUBCLASS: 63, for a construction including a flaccid surfacing component. 69, for a barrier swingable to act as a wall or canopy. 83, for a roof or enclosure suspended by flexible means and fixedly related to support means.

67	Telescoping sub and main enclosures:
	This subclass is indented under subclass 64.  Structure wherein the movable barrier sections include one structure defining an occupiable space which structure is arranged to telescope, either by sliding or swinging, within another such structure. SEE OR SEARCH THIS CLASS, SUBCLASS: 79.1+, for another three-dimensional, preassembled subenclosure which is not mounted for movement. SEE OR SEARCH CLASS: 280,  Land Vehicles,   subclasses 638+ for an extensible vehicle structure there provided for.

68	Wall extension convertible to roof:
	This subclass is indented under subclass 64.  Structure comprising a wall construction having an extension, which extension is adapted to be manipulated to form a roof section. SEE OR SEARCH THIS CLASS, SUBCLASS: 66, for an entire roof movably connected to a substructure. 69, for a vertical section hinged to swing to form a horizontal barrier, e.g., canopy.

69	Hinged to swing from vertical to nonvertical:
	This subclass is indented under subclass 64.  Structure in which at least two of the components are connected to each other by a hinge fastened to both, with one of the components in the erected or use position being vertical but which can be folded to a nonvertical, e.g., collapsed position. SEE OR SEARCH THIS CLASS, SUBCLASS: 68, for a structure, e.g., stile, having a wall extension convertible to a roof. 73, for a rigid barrier, e.g., canopy, cantilevered from a vertical support.

70	Three walls hinged at their intersections:
	This subclass is indented under subclass 64.  Structure including three walls interconnected by hinge means allowing folding of the walls in order to collapse the structure. SEE OR SEARCH THIS CLASS, SUBCLASS: 66, for a foldable enclosure wherein a complete roof is connected to walls. 71, for a barrier hinged intermediate its length.

71	Barrier of hingedly connected sections:
	This subclass is indented under subclass 64.  Structure wherein the movable barrier section cooperates with other sections in forming a barrier, the sections being hingedly connected so as to allow the barrier to be collapsed. SEE OR SEARCH CLASS: 108,  Horizontally Supported Planar Surfaces,   subclasses 166+ for such a structure which is freely movable over a supporting surface, e.g., a foldable stage, per se.

72	Movable cupola or section thereof:
	This subclass is indented under subclass 64.  Structure comprising a structural unit mounted on and projecting above a roof surface and communicating with the space below the roof. SEE OR SEARCH THIS CLASS, SUBCLASS: 55, for a centrally ridged car roof with a movable cover section. 64, for an upright support member connected to a movable cover section. 66, for a cover assembly movable as an entity. 200, for a cupola or skylight mounted on a roof and having no movable major components.

73	RIGID BARRIER CANTILEVERED FROM VERTICAL SUPPORT:
	This subclass is indented under the class definition.  Structure including a barrier which extends laterally from an upright support with the barrier being unsupported except by means connected to the upright support. SEE OR SEARCH THIS CLASS, SUBCLASS: 11+, for a cover with a surface water receiver at an eave or valley. 64+, particularly 66, 68, and 69 for a movable mounted barrier section which may be cantilevered in one position. 97, for an externally projecting liquid deflector. 201, for a bay window which extends downwardly to a base, e.g., the earth. 260, for a cast in situ column with radial reinforcement for a floor.

74	Awning type:
	This subclass is indented under subclass 73.  Structure including means defining an inclined panel overlying an open space which panel extends downwardly and outwardly of a vertical structure, usually a wall, to which the upper edge of the panel is secured. SEE OR SEARCH THIS CLASS, SUBCLASS: 473, for a louvered panel having no feature for holding it as a unit in a cantilevered, e.g., inclined position. SEE OR SEARCH CLASS: 49,  Movable or Removable Closures,   subclass 71 for a movable rigid awning which also acts as a closure. 135,  Tent, Canopy, Umbrella, or Cane,   subclasses 15.1+ for an umbrella. 160,  Flexible or Portable Closure, Partition, or Panel,   subclasses 45+ for a flexible panel type awning. 296,  Land Vehicles: Bodies and Tops,   subclasses 152+ for a vehicle door or window canopy.

75	Longitudinal axis of slats inclined:
	This subclass is indented under subclass 74.  Structure wherein the inclined surface consists of a series of parallel slats, the longitudinal axes of which are downwardly and outwardly inclined. SEE OR SEARCH THIS CLASS, SUBCLASS: 518+, for another lapped multiplanar surfacing.

76	With side panel:
	This subclass is indented under subclass 75.  Structure wherein the outside edges of the outside slats are intersected by vertically depending side panels which are secured and extend generally perpendicular to the vertical structure.

77	Diverse side and top panels:
	This subclass is indented under subclass 76.  Structure in which the side panels construction differs in kind from that of the inclined surface panel construction.

78	Horizontal slatlike surfacing:
	This subclass is indented under subclass 74.  Structure wherein the inclined surface consists of a series of integral or separated slats disposed with their longitudinal axes parallel to the major plane of the vertical structure. SEE OR SEARCH THIS CLASS, SUBCLASS: 473, for another louvered panel. 518+, for another lapped multiplanar, e.g., shingle-like surfacing.

79.1	PREASSEMBLED SUBENCLOSURE OR SUBSTRUCTURE SECTION(S) OF UNIT OR BUILDING:
	This subclass is indented under the class definition.  Structure including one or more preassembled or prefabricated structural means, each defining 1) at least a two sided or walled sub-occupiable space assembly, 2) a preassembled or prefabricated room or occupiable space which is to be assembled with like or unlike structures to form a complete structure, or 3) a single or composite wall, usually having a curved cross-section which acts, with other structure to form one or more occupiable spaces. (1) Note. The structures classified in this subclass usually fall into one of the following categories: a) one or more prefabricated room units which can be associated with other like or unlike units to form a building or plurality of occupiable spaces; or b) one or more prefabricated partial room units which can be associated with other like or unlike structure to form one or more occupiable spaces. SEE OR SEARCH THIS CLASS, SUBCLASS: 67, for a telescoping three-dimensional subenclosure mounted for movement relative to means forming another enclosure.

79.11	Cast in situ:
	This subclass is indented under subclass 79.9.  Structure wherein the subenclosures include spaced forms to accept a cast in situ material, such as concrete, which acts as a binder to attach the subenclosures together.

79.12	Separate frame:
	This subclass is indented under subclass 79.9.  Structure wherein the sub-enclosures are supported, and thereby attached, by a separate framework or vertical and horizontal sustainer means.

79.13	Distinct vertical tie:
	This subclass is indented under subclass 79.9.  Structure wherein a plurality of occupiable sub-enclosures or building units are superposed, one above the other, and are attached by a separate and distinct vertical tie member.

79.14	Continuous cementitious barrier:
	This subclass is indented under subclass 79.1.  Structure wherein the sub-enclosure or building unit is a single piece, continuous barrier, e.g., poured concrete monolith. SEE OR SEARCH CLASS: 105,  Railway Rolling Stock,   subclass 405 for concrete modules.

79.2	Vertically staggered:
	This subclass is indented under subclass 79.1.  Structure wherein two or more occupiable units are arranged in such a manner that each unit is vertically offset (higher or lower) with respect to its adjacent unit, but not directly above or below its adjacent unit.

79.3	Angularly stacked:
	This subclass is indented under subclass 79.1.  Structure wherein a plurality of occupiable spaces are superposed, one over the other in such a manner as to have their respective floors horizontal and parallel to each other, and at least one vertical wall of one unit at an angle to at least one vertical wall of another unit.

79.4	Nonrectangular substructure:
	This subclass is indented under subclass 79.1.  Structure wherein the occupiable space has a floor plan which is nonrectangular.

79.5	Collapsible for ease of transport:
	This subclass is indented under subclass 79.1.  Structure which is made in such a manner so as to be collapsible to a more compact form for ease of transport from its place of manufacture to the building site. SEE OR SEARCH THIS CLASS, SUBCLASS: 64+, for barriers mounted for repetitious movement relative to base without disconnection. SEE OR SEARCH CLASS: 296,  Land Vehicles: Bodies and Tops,   subclass 27 for collapsible trailers.

79.6	Porch or vestibule:
	This subclass is indented under subclass 79.1.  Structure wherein the occupiable space is a porch or vestibule.

79.7	Opening between subenclosures:
	This subclass is indented under subclass 79.1.  Structure wherein each of two or more subenclosures is provided with an opening through one side thereof, such openings to mate with each other to form a passage for people from one subenclosure to the other. (1) Note. An opening, for this subclass, may be the absence of an entire wall, in which case, each subenclosure would form half of a room.

79.8	Portal to portal:
	This subclass is indented under subclass 79.7.  Structure wherein the mating openings in each occupiable space are doors for the passage of people.

79.9	With retaining or attaching means:
	This subclass is indented under subclass 79.1.  Structure wherein two or more occupiable spaces have therebetween means to attach them together or to another common structure.

80.1	COMPOUND CURVE STRUCTURE:
	This subclass is indented under the class definition.  Structure having a major exposed portion which conforms to a surface generated by a curved line moving along a curved path; e.g., a sphere, hyperbolic parabloid, or dome. SEE OR SEARCH THIS CLASS, SUBCLASS: 2.11+, for a construction which is shaped by fluid pressure. 82, for a conical structure. 85, for a two-dimensional curvilinear entrance archway. 86+, for a two-dimensional vertically curved arch. 200, for a skylight. 245+, for a noncompound curve curvilinear barrier. 639+, for a two-dimensional curved or peaked truss. 648.1+, for openwork. SEE OR SEARCH CLASS: 135,  Tent, Canopy, Umbrella, or Cane,   subclasses 124+ for portable structures formed with an arc or dome structure. 220,  Receptacles,   subclasses 565+ for a compound curve; e.g., spheroidal, fluid confining tank. 343,  Communications: Radio Wave Antennas,   subclass 872 for a dome-like antenna housing having a defined electrical characteristic; e.g., a radome.

80.2	Hyperbolic parabloid shape:
	This subclass is indented under subclass 80.1.  Compound curve structure which is in the form of a saddle shaped quadric surface wherein all sections parallel to one coordinate plane are hyperbolas while all the sections parallel to another coordinate plane are parabolas (if proper orientation of the coordinate axes is assumed).

81.1	Geodesic shape:
	This subclass is indented under subclass 80.1.  Compound curve structure comprising distinct polygonal panels connected to form a surface which is or approximates a segment of a sphere.

81.2	Having an underlying grid frame:
	This subclass is indented under subclass 81.1.  Geodesic shape comprising a network of uniformly spaced members which support cover panels. SEE OR SEARCH THIS CLASS, SUBCLASS: 648.1+, for three dimensional openwork.

81.3	Frame connection detail:
	This subclass is indented under subclass 81.2.  Frame in which a node of the structural network members is particularly designed to hold the members together and transmit forces. SEE OR SEARCH CLASS: 403,  Joints and Connections,   subclasses 169+ for a joint designed for frame members.

81.4	Comprised entirely of a single self-supporting basic geometrical shaped panel:
	This subclass is indented under subclass 81.1.  Shape in which all the panels are of a simple configuration; i.e., triangle or diamond.

81.5	Trapezoidal or rectangular design:
	This subclass is indented under subclass 81.4.  Panel in which the configuration is a quadrilateral having (1) two parallel sides and two diverging (or converging) sides or (2) all corners at right angles.

81.6	Monolithic construction:
	This subclass is indented under subclass 80.1.  Shape which is cast as a single piece.

82	CONICAL OR RADIALLY RIBBED COVER:
	This subclass is indented under the class definition.  Structure forming a cover which has a conical surface or formed by three or more generally triangular surface forming members the abutting edges of which form seams or ribs which converge upon a common locus. SEE OR SEARCH THIS CLASS, SUBCLASS: 68, for a wall extension movable to form a roof in which an extension component is often formed of triangular sections which pivot to form a radially ribbed cone. 80.1+, for a compound curve structure, e.g., dome, and see notes. 90.1+, for another inclined roof or rafter with a substructure.

83	COVER OR ENCLOSURE SUSPENDED BY FLEXIBLE MEANS:
	This subclass is indented under the class definition.  Structure including means covering or enclosing an area which means is suspended by flexible devices attached to structure which extends into the ambient above and beyond said means. SEE OR SEARCH THIS CLASS, SUBCLASS: 22+, for a vertically spaced roof section. 73+, for a cantilevered structure which may include a diagonal guy means. 120+, for a mast with cable hoist. 121, and 122.1+, for a static structure combined with hoist means. 506.06+, for an internal facer suspended by flexible or pivoted hanger. SEE OR SEARCH CLASS: 135,  Tent, Canopy, Umbrella, or Cane,   subclass 90 for a flexible, canopy suspended by flexible means.

84	STREAMLINE CROSS-SECTION; I.E., AIRFOIL
	This subclass is indented under the class definition.  Structure which has a curvilinear cross-section peculiar to the reduction of wind resistance generally termed air foils or streamlined. SEE OR SEARCH THIS CLASS, SUBCLASS: 245+, for a structure having or formed by a curvilinear barrier. SEE OR SEARCH CLASS: 244,  Aeronautics and Astronautics,   subclasses 123.1 through 124for an aircraft airfoil construction. 343,  Communications: Radio Wave Antennas,   subclass 887 for an antenna support with a streamlined cross-section.

85	CURVILINEAR PORTAL WITH SETTABLE MATERIAL BACKER:
	This subclass is indented under the class definition.  Structure including a facing member in the form of curvilinear arch having structure for the adherence or retention of plastic-to-rigid, water settable material, e.g., plaster, which material forms a curved exposed surface. SEE OR SEARCH THIS CLASS, SUBCLASS: 204.1+, for another construction forming a portal. 250+, for a settable material corner construction of more general application.

86	VERTICALLY CURVED ARCH WITH TERMINAL SUPPORT:
	This subclass is indented under the class definition.  Structure peculiar to an in situ erected primary, load bearing construction which as a whole forms a curved arch whose mid-point is above the externally supported terminal edges. SEE OR SEARCH THIS CLASS, SUBCLASS: 67, for a telescoping three-dimensional section which may include a curved segment. 80.1+, for a compound curve cover. 85, for a settable material, curved, entrance archway. 245+, for a space enclosing, curvilinear wall. 319+, particularly subclasses 329 and 389 for a generally planar concrete barrier which may include a curved backing member supporting a cast section. 575, for a key type block, per se, which can be used to form a curved arch. 639+, for a curvilinear or peaked truss. SEE OR SEARCH CLASS: 14,  Bridges,   subclasses 24+ for an arch bridge which is not primarily of stone-like material.

87	With deck structure:
	This subclass is indented under subclass 86.  Structure including a horizontal deck construction, e.g., roadway, supported by the structure. SEE OR SEARCH THIS CLASS, SUBCLASS: 174+, for a construction with traffic guiding feature.

88	Monolithic arch:
	This subclass is indented under subclass 86.  Structure in which the arch as a whole is formed by flowable cast material which, when set, forms an entity.

89	Stonelike modules form arch:
	This subclass is indented under subclass 86.  Structure in which the arch is formed by abutting masonry or concrete-like units.

90.1	INCLINED TOP COVER (E.G., ROOF, A-FRAME):
	This subclass is indented under the class definition.  Structure including cover construction or rafters which are at an angle to a horizontal plane. (1) Note. The rafter are attached to a vertical supporting substructure; e.g., walls, studding, columns, etc. (2) Note. This subclass takes ridge connections without a venting function. SEE OR SEARCH THIS CLASS, SUBCLASS: 45+, for a car roof construction. 73+, for a cantilevered barrier which is more than a mere eave. 82, for a conical or radially ribbed cover. 262+, for a floor, ceiling, or roof not having a defined feature relating to an inclined roof or rafter resting on a substructure. 272+, for a construction, per se, formed by intersecting barriers even though disclosed or claimed as being at the ridge of a roof. 478, for a lapped or strip cover joint surfacing attached to a substructure arrangement; e.g., rafter and purlin. 639, for a peaked truss construction.

90.2	On existing roof:
	This subclass is indented under subclass 90.1.  Inclined cover which is erected on a previously built cover.

91.1	Self-supporting cover (i.e., without distinct rafters):
	This subclass is indented under subclass 90.1.  Inclined cover in which a roof spans from eaves to ridge without being supported by an underlying frame, beam, etc.

91.2	Eave fixed by masonry or settable material:
	This subclass is indented under subclass 91.1.  Self-supporting cover specialized to the use of cementitious or adhesive type material at the junction of the cover and the supporting substructure; e.g., of a wall.

91.3	Connection for abutting cover sections:
	This subclass is indented under subclass 91.1.  Self-supporting cover where the entire cover is in portions which are secured together by a fastening means to make a complete cover.

92.1	Rafter tie-in at horizontal-type support (e.g., wall plate):
	This subclass is indented under subclass 90.1.  Inclined cover in which a roof support beam is (1) set or (2) fabricated or cut to a particular shape for attachment to the supporting substructure (e.g., wall top plate).

92.2	Distinct connector fixing rafter to wall plate:
	This subclass is indented under subclass 92.1.  Tie-in in which a discrete fastener secures the roof support beam to the supporting substructure. SEE OR SEARCH THIS CLASS, SUBCLASS: 92.1, for a roof support beam attached to a bearing member without a fastener.

92.3	Rafter end terminating at wall exterior face:
	This subclass is indented under subclass 92.1.  Tie-in in which the end of the roof support beam, at the eaves, is in the same plane as the supporting substructure outside surface.

93.1	Rafter to vertical support (e.g., stud, column, post) connection:
	This subclass is indented under subclass 90.1.  Inclined cover in which a roof support beam is directly fastened to a load bearing upright element of the supporting substructure.

93.2	Rafter overhangs vertical support outside surface:
	This subclass is indented under subclass 93.1.  Connection in which a roof support beam extends beyond the supporting substructure exterior face. SEE OR SEARCH THIS CLASS, SUBCLASS: 92.2, for a rafter connected to a vertical support with a fastener.

94	GABLE OR EAVE TERMINAL CONSTRUCTION:
	This subclass is indented under the class definition.  Structure comprising means forming a construction at the gable or eave terminus of a roofing surface which is different in kind from that forming the surface. SEE OR SEARCH THIS CLASS, SUBCLASS: 11+, for a cover with an eave gutter. 45+, for a car roof, particularly subclass 56, for a cover sheet with over-hanging, continuing edge section. 73+, for a rigid cantilevered barrier, e.g., awning. 90.1+, for an inclined roof having supporting substructure. 262+, for a roof extending over at least two vertical supports in which the construction merely involves a roof overhang (eave).

95	With conduit or passage means (e.g., eave vent, insulation shield for eave vent):
	This subclass is indented under subclass 94.  Structure including means forming a passage or conduit from a subjacent area communicating to outside of the roof. SEE OR SEARCH THIS CLASS, SUBCLASS: 11+, for an eave or valley gutter receiving liquid flowing from the upper surface of a roof. 302.1+, for a construction with fluid passage between the interior of it and the ambient, and see notes. 553, for a lapped multiplanar surfacing with a unit spacing or space forming feature.

96	Covering continuation overlaps edge:
	This subclass is indented under subclass 94.  Structure wherein the material forming at least part of the upper exposed surfaces of a roof between the gables or eaves is bent to form a flange-like portion which extends downwardly to a subjacent edge portion of the roof. SEE OR SEARCH THIS CLASS, SUBCLASS: 56, for a car roof with an overhanging edge section.

97	EXTERNALLY PROJECTING LIQUID DEFLECTOR:
	This subclass is indented under the class definition.  Structure including means extending outwardly of the plane of a surface means is defined as functioning to deflect a liquid (rain) away from the barrier surface. SEE OR SEARCH THIS CLASS, SUBCLASS: 11+, for a cover with an eave gutter. 56, for a car cover with overhanging sheet edge. 58+, for an exterior type flashing. 74+, for a rigid outrigged awning usually having a flashing or liquid deflector at the wall juncture. 94+, for a coping which may have an edge overhanging a wall. 302.1+, for a structure with means draining or venting the interior of a construction to the ambient. 302.5, and 408+, for sandwiched preformed imperforate member even though they may have a flanged portion bent to contact the wall. 503+, and 606+, for a liquid deflector within an internal through passage.

98	FRANGIBLE SECTION OR MEANS:
	This subclass is indented under the class definition.  Structure including a distinct section or means which facilitates fracturing of the structure or section thereof. SEE OR SEARCH THIS CLASS, SUBCLASS: 105, for an indicia combination including means indicating a cutting or breaking line. SEE OR SEARCH CLASS: 137,  Fluid Handling,   subclass 797 for an element for that class which is breakable, and see the notes. 220,  Receptacles,   subclasses 265+ for a frangible or knockout receptacle closure, and see the notes. 428,  Stock Material or Miscellaneous Articles,   subclass 43 for a stock material product in the form of a single or plural layer web or sheet which has been weakened to permit fracturing through the thickness thereof, and subclass 156 for such a stock material product having a component or layer which varies in thickness.

99	In dissimilar material member:
	This subclass is indented under subclass 98.  Structure in which the frangible means is made of a material differing in kind from that of the primary structure, e.g., a metal member attached or embedded in a concrete base member.

100	Removable corner or internal section:
	This subclass is indented under subclass 98.  Structure in which the frangible section or means is so arranged relative to the original circumscribing boundary surfaces that a corner or a section within such circumscribing boundary surfaces is severable from the original unit.

101	ANIMAL BLOCKING LATERAL PROJECTION, TRAP, OR SCARER:
	This subclass is indented under the class definition.  Structure which deters the movement of animal life having (1) a trap, (2), a device which by movement or force repels them or (3) a projection which extends outwardly of a surface of structure to block landing on or movement along the structure. SEE OR SEARCH THIS CLASS, SUBCLASS: 24, for a projecting restrainer, e.g., a snow slide stop. 58+, for an exterior type flashing. 97, for an externally projecting liquid deflector. 170, for a shaft reinforcement adjacent the surface of the earth which may act as a protector. 408+, for a "through type" flashing which may have a protruding edge. 517, for a structure with an insect repellent coating. SEE OR SEARCH CLASS: 43,  Fishing, Trapping, and Vermin Destroying,   subclasses 124+ for a vermin destroying device not structurally combined with a building structure.

102	EARTH-SUPPORTED COPING OR EDGING:
	This subclass is indented under the class definition.  Structure including a single monolithic unit or a single course of connected modules which unit or course rests on the earth and defines a low wall edging for an area. SEE OR SEARCH THIS CLASS, SUBCLASS: 38, for a support for a name plate. 103, for a marker or monument. 128+, for a burial vault. 146, 283, 296+, 300+, and 720+, for a shaft or a related structure of more general application. 169.1+, for a structure with defined geographic feature. 245, for a tubular structure of more general application. 311.1+, for a structure with relief pattern forming an ornamental facing. SEE OR SEARCH CLASS: 47,  Plant Husbandry,   subclass 33 for an edging for gardens there provided for. 256,  Fences,   for a structure of greater height than a mere coping or edging.

103	LAND MARKER OR MONUMENT:
	This subclass is indented under the class definition.  Structure which indicates a position on or particular use of the earth and has (1) a feature, e.g., indicia, serving such function or (2) a shape which in its entirety has inherent stability against overturning. SEE OR SEARCH THIS CLASS, SUBCLASS: 38, for a building structure supporting a sign. 102, for an earth supported coping, and see notes. 105, for a building structure or building component with indicia. 128+, for a grave vault. 311.1+, for an ornamental component of a building structure for having no feature specialized to use as a marker or monument, particularly subclass 315 for visible embedded elements and subclass 316 for integrally relieved surfaces.

104	With translucent feature:
	This subclass is indented under subclass 103.  Structure including a visible component that permits the passage of light. SEE OR SEARCH THIS CLASS, SUBCLASS: 306+, for a glass block or embedded translucent component. SEE OR SEARCH CLASS: 428,  Stock Material or Miscellaneous Articles,   subclass 34 for a pair of substantially coextensive light transmissive sheets, spaced from each other and sealed at their edges to each other, and subclass 38 for a light transmissive mass having a frame or an opaque border around it.

105	WITH INDICIA:
	This subclass is indented under the class definition.  Structure including (1) means, e.g., writing, grooves or markings; which (a) indicates a property or characteristic of an element or (b) serves as a gage in the positioning or alignment of a structure; or (2) means identifying the location of an embedded or hidden device or structure. (1) Note. Devices having a structural function, e.g., for locking, positively positioning, receiving, fasteners, etc., are classified in appropriate subclasses below even though they may also serve as an indicator. SEE OR SEARCH THIS CLASS, SUBCLASS: 38, for a supported sign, e.g., name plate. 103+, for a marker or monument. 364+, for a member acting as a gage for after-applied plaster coating, e.g., screed. SEE OR SEARCH CLASS: 428,  Stock Material or Miscellaneous Articles,   subclass 187 for a stock material product in the form of a single or plural layer web or sheet in which one component is of uniform thickness but nonplanar to form a figured pattern or to yield information, and subclasses 195+ for a stock material product having a discontinuous or differential coating, impregnation or bond to form a pattern or to yield information.

106	JAIL-TYPE STRUCTURE:
	This subclass is indented under the class definition.  Structure having features peculiar to buildings for confining a person so that he cannot leave the building or compartment thereof without outside intervention. SEE OR SEARCH THIS CLASS, SUBCLASS: 65, for buildings with revolvable section, e.g., revolving prison cells. SEE OR SEARCH CLASS: 49,  Movable or Removable Closures,   subclasses 15+ for a jail structure restricted to movable doors, their mountings, operators and/or locks. 109,  Safes, Bank Protection, or a Related Device,   appropriate subclasses for a related structure for preventing entrance of persons into a building or part thereof, except subclass 21.5 which is the residual subclass for a structure allowing voice transmission through a closure of barrier irrespective of disclosed purpose.

107	AREAWAY; E.G., WINDOW WELL:
	This subclass is indented under the class definition.  Structure including means defining a wall outside of and attached to the outside of a building wall adjacent a portal opening which in use is below grade level. SEE OR SEARCH THIS CLASS, SUBCLASS: 69+, for a structure with a defined terrane an feature.

108	STRIPLIKE UNIT, REVERSIBLY FLEXIBLE AND RIGID:
	This subclass is indented under the class definition.  Structure including flexible strands or strips or discrete connected sections which when fed from a coiled or collapsed storage position form an elongated rigid shaft section extending from the storage position and vice versa. SEE OR SEARCH THIS CLASS, SUBCLASS: 2.11+, for a structure shaped or strengthened by fluid pressure. 109, for a lazy tong extension unit, and see the search notes. SEE OR SEARCH CLASS: 182,  Fire Escape, Ladder, or Scaffold,   subclass 41 for a self-rigidifying upwardly extensible flexible ladder or escape means. 242,  Winding, Tensioning, or Guiding,   subclasses 370+ and 901 for a reeling device which may store a strip that is convertible from a coiled to an extended rigid state. 343,  Communications: Radio Wave Antennas,   subclass 877 for an antenna with reel and subclasses 900+ for rod type antennas.

109	LAZY TONG EXTENSION UNIT:
	This subclass is indented under the class definition.  Structure comprising a series of diagonal levers pivoted together at their mid-points and at their ends by which arrangement the device as a whole can be extended and retracted. SEE OR SEARCH CLASS: 14,  Bridges,   subclass 45 for a lazy tong draw bridge. 74,  Machine Element or Mechanism,   subclass 521 for a lazy tong mechanical movement. 135,  Tent, Canopy, Umbrella, or Cane,   subclasses 131 and 145 for lazy-tong type frameworks for portable shelters. 182,  Fire Escape, Ladder, or Scaffold,   subclasses 69.1+ for a lazy tong means for extending an extension ladder and subclass 141 for a platform elevating means which may include lazy tong extension means. 187,  Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle,   subclasses 211 and 269 for an elevator with lazy tong elevating means.

110	SHAFT, VEHICLE SHELL ATTACHED; E.G., ANTENNA:
	This subclass is indented under the class definition.  Structure including an elongated member mounted on a part of the shell of a vehicle body which can be projected or is fixedly mounted to extend outwardly of the shell, which member is usually disclosed as being an antenna. SEE OR SEARCH THIS CLASS, SUBCLASS: 108, 109, and 111+, for another extensible or relatively movable shaft. SEE OR SEARCH CLASS: 343,  Communications: Radio Wave Antennas,   subclasses 711+ for an antenna attached to a vehicle wherein a significant electrical or radiation limitation is defined.

111	MECHANISM OPERATED RELATIVELY MOVABLE SHAFT ASSEMBLY:
	This subclass is indented under the class definition.  Structure comprising a rigid elongated member or construction at least part of a section of which is movable relatively to another section or to a base and mechanical motive means for applying power to affect such movement, e.g., motor, spring, pulley, crank or cable. SEE OR SEARCH THIS CLASS, SUBCLASS: 108, for a strip which can be coiled for storage or projected outwardly to a rigid position. 109, for a lazy tong extension unit. 110, for a vehicle shell attached shaft, e.g., antenna. 122.1+, for a static structure with hoist or handle means for adjusting component level or assembling. 143, for another static structure with a transportation feature. 146+, for a vertical structure with diagonal brace or guy. 632, for a manually extensible shaft. 633+, for openwork structures, particularly subclasses 648+ for three dimensional open work, e.g., tower or mast. 848, for an end-to-end connected section shaft. SEE OR SEARCH CLASS: 182,  Fire Escape, Ladder, or Scaffold,   appropriate subclasses for a mast with a workman"s platform, particularly subclass 62.5 for such an apparatus having extensible vertical and nonvertical sections. 212,  Traversing Hoists,   appropriate subclasses for a collapsible, extensible, horizontally swinging, or vertically swinging, boom for a load-handling apparatus. Patents placed as originals in Class 212 should claim structure peculiar to load-handling apparatus. 248,  Supports,   subclasses 351+ for a prop or brace there provided for. 254,  Implements or Apparatus for Applying Pushing or Pulling Force,   subclasses 264+ for a derrick hoist having means to hoist an external load. 343,  Communications: Radio Wave Antennas,   subclasses 874+ for mast or tower type antennas with a significant recitation of an electrical feature. 362,  Illumination,   subclass 431 for an electrically operated light supporting post.

112	Opposed barrier-engaging; e.g., rock drill column:
	This subclass is indented under subclass 111.  Structure in which the terminal ends of shaft section which are movable longitudinally each have on their outer ends means for engaging opposed barriers, e.g., floor and ceiling of a mine. SEE OR SEARCH THIS CLASS, SUBCLASS: 122.1+, for a building component with hoist or handle means. SEE OR SEARCH CLASS: 173,  Tool Driving or Impacting,   subclasses 31+ for such devices with work engaging means supporting the tool device. 211,  Supports: Racks,   subclasses 123+ for a horizontal rod type rack which includes means engaging opposed walls. 248,  Supports,   subclass 200.1 for an extensible column mounted between opposed surfaces for supporting a bracket; and subclass 644 for such a column for supporting a machine. 254,  Implements or Apparatus for Applying Pushing or Pulling Force,   appropriate subclass for an extensible device, designed to move an object, particularly subclass 93 for a fluid operated device, subclass 95 for a rack and pinion operated device, subclasses 98+ for a screw-operated device, and subclass 387 for a cable-operated device.

113	With spring-actuated return:
	This subclass is indented under subclass 111.  Structure wherein spring means are provided to return the rigid elongated member or construction to an upright position after deflection by a transversely applied outside force.

114	Moves about vertical axis:
	This subclass is indented under subclass 111.  Structure wherein the structure is mounted to move in a substantially horizontal plane about an axis normal to said plane, e.g., a rotatable building. SEE OR SEARCH CLASS: 212,  Traversing Hoists,   subclasses 223+ for a load-handling boom and sluing mechanism therefor.

115	Fluid pressure actuated:
	This subclass is indented under subclass 111.  Structure wherein the means for moving the shaft includes a motor utilizing a fluid as its source of power which motor is connected to the shaft and its base. SEE OR SEARCH CLASS: 91,  Motors: Expansible Chamber Type,   appropriate subclasses for an expansible chamber type motor, particularly subclasses 167+ for an apparatus wherein some of the extension equals the extension of individual chambers. 92,  Expansible Chamber Devices,   appropriate subclasses particularly subclasses 51+ for a mutually relatively movable cylinder or sleeve device. 212,  Traversing Hoists,   subclasses 238 and 261 for a load-handling (i.e., crane) boom and a fluid ram for swinging it in a vertical plane. See also subclass 297 for a crane-boom supporting tower and a fluid cylinder to raise the same from a horizontal-transport position. 343,  Communications: Radio Wave Antennas,   subclass 902 for a telescoping fluid pressure actuated rod type antenna having a feature specialized to such use.

116	Tilts relative to base:
	This subclass is indented under subclass 111.  Structure wherein the shaft is pivoted so as to allow it to tilt relative to a base. SEE OR SEARCH THIS CLASS, SUBCLASS: 113, for a spring actuated return post or column.

117	Relatively moving sections:
	This subclass is indented under subclass 116.  Structure wherein the shaft is divided into multiple discrete sections which may change their position with respect to each other.

118	Telescoping:
	This subclass is indented under subclass 117.  Structure wherein one of said sections is extensible from within the other. SEE OR SEARCH CLASS: 212,  Traversing Hoists,   subclass 296 for a telescoping boom-supporting tower and means to permit the tower to collapse to a position for transporting the crane; and subclasses 231 and 264 for an extensible, vertically swinging crane boom.

119	Lifting arm directly engages tower:
	This subclass is indented under subclass 117.  Structure including a rigid member extending between the shaft and base and connected to one and slidably contacting the other, acting to elevate the shaft.

120	Gin pole hoist:
	This subclass is indented under subclass 117.  Structure including a cable passing over a drum or pulley mounted on a vertical member acting to elevate the shaft or shaft section. SEE OR SEARCH THIS CLASS, SUBCLASS: 121, for a cable hoist to extend a non- tilting sectional mast. SEE OR SEARCH CLASS: 212,  Traversing Hoists,   subclasses 239+ and 262 for a vertically swinging crane boom actuated by a flexible cable.

121	Longitudinally extensible by flexible drive or hoist:
	This subclass is indented under subclass 111.  Structure wherein the elongated assembly is extended and collapsed by means of a flexible cable, e.g., Bowden wire, or hoisted by a cable. SEE OR SEARCH THIS CLASS, SUBCLASS: 120, for a tilting mast with relatively movable sections utilizing a gin pole hoist. 632, for a manually extensible shaft. SEE OR SEARCH CLASS: 74,  Machine Element or Mechanism,   subclasses 500.5+ for a hand operated control lever and linkage system with a flexible transmitter. 212,  Traversing Hoists,   subclasses 230+ , 264, and 267 for extensible boom structure for load-handling apparatus.

122.1	WITH LIFTING OR HANDLING MEANS FOR PRIMARY COMPONENT OR ASSEMBLY:
	This subclass is indented under the class definition.  Structure including installed means which has utility for raising or lowering a construction, or a primary component thereof during in situ assembly, or for adjustment while in use. SEE OR SEARCH THIS CLASS, SUBCLASS: 6+, for a building with a theatre, or stadium feature which may be movable. 29+, for a disparate article, or its support, mounted for movement. 64+, for a barrier, or major component thereof mounted for in situ repositioning, i.e., to change size, or shape, or for continuous movement. 111+, for a mast or tower with motive power means. 365, for a screed having a position adjusting means. 678, for means adjustable spacing a concrete reinforcing rod from a form surface. 698+, for an anchor or tie which may be adjustable.

123.1	Mast or enclosure section elevated to superimposed position:
	This subclass is indented under subclass 122.1.  Structure wherein the installed means raises (a) a disconnected elongated vertical shaft or group of shafts, i.e., a mast, or a construction surrounding an area or volume to be occupied by persons, animals, or goods, i.e., an enclosure section, to a vertically extending position above a lower mast or enclosure section or, (b) a first mast or enclosure section to make room for a similar disconnected section below, the mast or enclosure sections in their superimposed position being longitudinally joined to form an erected structure. SEE OR SEARCH THIS CLASS, SUBCLASS: 111+, for a shaft or mast having power means for moving the shaft or mast as an entirety relative to a base section thereof or relative to other connected sections thereof during use.

124.1	Vault component:
	This subclass is indented under subclass 122.1.  Structure in which the primary component is a unit, e.g., the cover, of an enclosed receptacle capable of receiving an organic or inorganic body for either burial or installment at a particular site. (1) Note. The body may be, for example, a dead being, a casket, or electrical, or sewer connections which are placed within the stationary vault at a given location below or on the ground surface. SEE OR SEARCH THIS CLASS, SUBCLASS: 128+, for vaults, per se. SEE OR SEARCH CLASS: 27,  Undertaking,   for a coffin, casket, or portable coffin case for receiving and transporting a dead body to a burial site.

124.2	Having hand, hoist, or tackle engaging means embedded in settable material:
	This subclass is indented under subclass 124.1.  Structure in which the installed means (a) is a separate means for positively contacting, i.e., engaging, a living being"s hand or a mechanical lifting, or grasping device and (b) is, or is attached to an element that is, intimately surrounded and held, i.e., embedded, in an initially fluent material which has hardened, i.e., set, into a firm connection with the engaging means or element all of which substantially forms the unit of the receptacle. (1) Note. Examples of settable materials are concrete, cement and plaster. (2) Note. Hand, hoist, or tackle engaging means which are screwed, nailed, or otherwise attached to the primary component after it has been made are not proper for this subclass. SEE OR SEARCH THIS CLASS, SUBCLASS: 124.1, for a handle that is integrally cast i.e., not a separate element embedded in the settable material.