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 [Search a list of Patent Appplications for class 254]   CLASS 254,IMPLEMENTS OR APPARATUS FOR APPLYING PUSHING OR PULLING FORCE
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SECTION I - CLASS DEFINITION

This class includes implements or apparatus for applying a pushing or pulling force directly to either (a) an object to be moved, or (b) a generally stationary object upon which pressure or tension is to be exerted. It comprises jacks (including lifting jacks, floor jacks, and analogous implements), extracting apparatus (including stump pullers and nail extractors), tensioning apparatus (including belt, carpet and wire stretchers), hoist trucks, and cable-type load hauling or hoisting apparatus. Also included in this class is the subcombination of a cable guide which (1) is a component of, or used in combination with, an implement or an apparatus of this class, and (2) is intended to guide a cable which is directly connected to either the object or an object-supporting or -engaging member.

This class does not include the power-applying elements of machines, such as pump or presses, nor the adjusting elements of articles such as tables and chairs. It may, however, include supports of general application not elsewhere classifiable when they comprise means for hoisting the load-carrying portion of the support.

Implements for performing compressing operations upon material, e.g., clamps and bundling devices, are excluded, also devices for merely grasping or engaging with something to be moved.

SECTION II - LINES WITH OTHER CLASSES AND WITHIN THIS CLASS

Pushing or pulling implements of the jack or crowbar type, including those having special engaging features which engage between spring elements only, will be classified in Class 254. Those implements which engage between a spring and other structure to move or guide the spring into assembled or disassembled position will be classified in Class 29, subclasses 700+.

Patents that disclose a general use and state the implement can be used on an engine valve spring whether they coact with other structure for assembly or disassembly will be grouped as an art collection in Class 29, subclasses 215+.

Patents to an implement for spreading elements of a leaf spring are classified in Class 81, subclass 3.7.

SECTION III - REFERENCES TO OTHER CLASSES

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29Metal Working,   subclasses 700+ for pushing and pulling implements specially designed for assembling and disassembling purposes.
40Card, Picture, or Sign Exhibiting,   subclasses 349+ for a copyholder including means to elevate a platen to move copy supported by the platen relative to a line guide.
81Tools,   appropriate subclasses for a hand manipulatable tool for exerting a push or pull, but having no force multiplier or energy transducer to develop the pushing or pulling force. See particularly subclass 9.4 for a tool having means for pulling an insulating sheath from a wire, subclasses 300+ for pliers, subclass 485 for spreaders, subclass 486 for a resilient article tensioner or compressor, and subclass 487 for a tool having clamping jaws for gripping an article to be pulled.
173Tool Driving or Impacting,   subclasses 141+ and see the search notes therein for an advance causing or controlling means for a tool driving or impacting means.
187Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle,   subclasses 203+ for a stationary lift for a roadway vehicle which elevates the entire vehicle to a significantly higher level where it is inspected or repaired and appropriate subclasses for an elevator for lifting a load from a charging level to a significantly higher discharge level.
249Static Molds,   subclasses 205+ for pushing and pulling mold adjuncts.
252Compositions,   appropriate subclasses for fluids for hydraulic jacks or for other hydraulic devices.

SUBCLASSES

[List of Patents for class 254 subclass 1]    1MISCELLANEOUS:
 This subclass is indented under the class definition.  Pushing and pulling implement not provided for under more specific titles.

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81Tools,   subclasses 3.07+ for a receptacle closure removing tool for tools combined with a pushing or pulling means.
  
[List of Patents for class 254 subclass 2]    2HOISTING TRUCK:
 This subclass is indented under the class definition.  Wheeled hoists comprising a truck platform or equivalent load support and mechanism for raising and lowering the load support. Those in which the load support is raised or lowered by mere adjustment of the wheels, as by the movement of legs or levers on which the wheels are mounted, are excluded, also those having means for elevating one part of the vehicle body relative to another for the purpose of dumping or leveling.
(1) Note. Vehicles for transporting the load while it is suspended from a hoisting means are classified, according to the hoisting structure, either in appropriate structural subclasses elsewhere in this class or in Class 212, Traversing Hoists.
(2) Note. Wheeled hoists classifiable in this class and falling in this group on disclosure have been placed here whether the wheels are claimed or not.
(3) Note. See search notes below for wheeled structures in which a raising or lowering is obtained by mere adjustment of the wheels relative to the vehicle frame or other supported structure.

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16Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, etc.),   subclass 32 for wheeled structures in which a raising or lowering is obtained by mere adjustment of the wheels relative to the vehicle frame or other supported structure.
104Railways,   subclass 263 for wheeled structures in which a raising or lowering is obtained by mere adjustment of the wheels relative to the vehicle frame or other supported structure.
105Railway Rolling Stock,   subclass 73 for wheeled structures in which a raising or lowering is obtained by mere adjustment of the wheels relative to the vehicle frame or other supported structure; subclasses 261.1+ for tilting body railway cars.
182Fire Escape, Ladder, or Scaffold,   subclasses 63.1+ for a wheel-mounted scaffold, ladder or escape with erection means.
187Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle,   subclasses 222+ for a fork lift truck and subclasses 240+ for a transportable elevator.
212Traversing Hoists,   appropriate subclasses for overhead traveling hoists.
280Land Vehicles,   subclasses 43+ for wheeled vehicles in which a raising or lowering of the vehicle body is obtained by mere vertical adjustment of the wheels relative to the running gear.
298Land Vehicles: Dumping,   appropriate subclasses, particularly subclasses 17+ for loading-dumping vehicles.
414Material or Article Handling,   subclasses 540+ ; and 298, Land Vehicles, Dumping, subclass 11 for vehicles having elevators to load or unload them.
  
[List of Patents for class 254 subclass 3]    3Tilting load support:
 This subclass is indented under subclass 2.  Hoisting truck in which the raising movement varies the inclination of the load-supporting surface, generally bringing it toward a horizontal position.

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414Material or Article Handling,   subclasses 469+ for a self-loading or unloading vehicle having a load-receiving portion which is pivotable relative to the horizontal.
  
[List of Patents for class 254 subclass 4]    4Cable hoist:
 This subclass is indented under subclass 2.  Hoisting truck in which the load support is attached to and hoisted by cables passing over drums or pulleys.

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74Machine Element or Mechanism,   subclasses 89.2+ for a drum and cable used to reciprocate or oscillate one component of an apparatus relative to another component of the apparatus.
187Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle,   subclasses 240+ for a transportable elevator.
  
[List of Patents for class 254 subclass 5]    5Inclined plane or wedge:
 This subclass is indented under subclass 2.  Hoisting truck in which the load support is raised by the action of wedges or inclined planes.
  
[List of Patents for class 254 subclass 6]    6Rack and pinion or segment:
 This subclass is indented under subclass 2.  Hoisting truck in which the load support is raised by rack and pinion or rack and toothed segment mechanism.
  
[List of Patents for class 254 subclass 7]    7Screw:
 This subclass is indented under subclass 2.  Hoisting truck in which the load support is raised directly by one or more screws.

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99,for wheeled screw hoists in which the load is suspended from the screw or screws.
  
[List of Patents for class 254 subclass 8]    8Single throw lever:
 This subclass is indented under subclass 2.  Hoisting truck in which the load support is raised directly by lever mechanism, the movement of the lever or levers being limited to a single throw.
(1) Note. Those trucks are excluded in which the truck wheels are mounted upon swinging legs or levers, by the mere swinging movement of which, relative to the vehicle frame, the frame or platform is raised.
  
[List of Patents for class 254 subclass 9]    9Toggle:
 This subclass is indented under subclass 8.  Hoisting truck in which the load support is raised by means of single throw toggle levers.
  
[List of Patents for class 254 subclass 10]    10Parallelogram bars:
 This subclass is indented under subclass 8.  Hoisting truck in which the load support is raised by the movement of links or bars arranged in the form of a parallelogram.
  
[List of Patents for class 254 subclass 10.5]    10.5METALLIC SPRING STRETCHER AND/OR COMPRESSOR, (E.G., LEAF, HELICAL OR COIL SPRINGS):
 This subclass is indented under the class definition.  Device , the claimed structure of which functions as disclosed to engage an exert compressive, torsion or tensile forces on articles made of metal and usually known as "springs".

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29Metal Working,   subclasses 213.1+ for engine valve spring compressors, and subclasses 225+ for spring appliers and removers; and see the class definition of this class (254) for a statement of the line between Classes 29 and 254.
81Tools,   subclass 3.7 for a tool for spreading portions of a leaf spring, subclass 485 for other hand manipulated spreading tools, and subclass 486 for a hand manipulative tool for placing a resilient article under tension or compression.
  
[List of Patents for class 254 subclass 11]    11FLOOR JACK TYPE:
 This subclass is indented under the class definition.  Implement used in laying flooring, siding or the like to force the boards to proper position.

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269Work Holders,   appropriate subclasses. Class 269 is the residual locus for patents to a device for clamping, supporting and/or holding an article (or articles) in position to be operated on or treated. See notes thereunder for other related loci.
  
[List of Patents for class 254 subclass 12]    12Rack and pinion or segment:
 This subclass is indented under subclass 11.  Implement of the floor jack type in which the board-forcing member is provided with a rack with which an actuating pinion or rack segment is in constant engagement.
  
[List of Patents for class 254 subclass 13]    13Screw:
 This subclass is indented under subclass 11.  Implement of the floor jack type in which the board-forcing member is provided with a screw by means of which it is caused to travel.
  
[List of Patents for class 254 subclass 14]    14Step-by-step traveling member:
 This subclass is indented under subclass 11.  Implement of the floor jack type not classifiable in the preceding subclasses in which the board-forcing member is caused to travel in a step-by-step movement by reciprocating engaging means.
  
[List of Patents for class 254 subclass 15]    15Single throw lever and bar:
 This subclass is indented under subclass 11.  Implement of the floor jack type in which the board-forcing member is a lever-actuated bar, the entire travel of the bar being produced by a single throw of the lever.
  
[List of Patents for class 254 subclass 16]    16Sliding bar:
 This subclass is indented under subclass 15.  Implement of the floor jack type in which the board-forcing member is a bar actuated by a single throw lever and sliding on some supporting portion of the jack.

SEE OR SEARCH THIS CLASS, SUBCLASS:

12,for floor jacks in which a rack bar is actuated by a single throw lever provided with a gear segment.
  
[List of Patents for class 254 subclass 17]    17Single throw lever:
 This subclass is indented under subclass 11.  Implement of the floor jack type in which the actuating lever or a part rigid therewith directly engages the board, the movement under load being limited to a single throw of the lever.
  
[List of Patents for class 254 subclass 18]    18NAIL EXTRACTOR TYPE:
 This subclass is indented under the class definition.  Implement especially designed for pulling nails, spikes, tacks and the like.

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12Boot and Shoe Making,   subclass 16 for machines for pulling out the lasting tacks used for temporarily securing the upper of a shoe to the sole or insole.
29Metal Working,   subclasses 700+ for analogous structures.
112Sewing,   subclass 30 for shoe sole sewing machines including tack-pulling devices.
227Elongated-Member-Driving Apparatus,   subclass 63 for combined apparatus for applying and withdrawing a member, e.g., nail.
  
[List of Patents for class 254 subclass 19]    19Hammer and anvil:
 This subclass is indented under subclass 18.  Implement of the nail extractor type including a hammer device for forcing the jaw or nipper into engagement with the nail or the like.

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81Tools,   subclasses 463+ ; and see the notes thereto for other impact tools.
  
[List of Patents for class 254 subclass 20]    20Screw:
 This subclass is indented under subclass 18.  Implement of the nail extractor type including screw and nut mechanism for moving the nail-engaging member to extract the nail.

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100,and see the search notes thereunder.
231+,for implement or apparatus for extracting stumps or poles including a screw drive for moving the stump-engaging member.
  
[List of Patents for class 254 subclass 21]    21Single throw lever:
 This subclass is indented under subclass 18.  Implement of the nail extractor type including an operating lever, the entire pulling movement of the implement being produced by a single throw of the lever.
  
[List of Patents for class 254 subclass 22]    22Lever and pivoted jaw grip:
 This subclass is indented under subclass 21.  Nail extractor of the single throw lever type adapted to engage the nail between the pulling lever and a jaw pivoted thereto.

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19,for nail extractor having a jaw and hammer.
131,for pushing and pulling implements, using a single throw lever.
  
[List of Patents for class 254 subclass 23]    23Multiple jaw grip:
 This subclass is indented under subclass 21.  Nail extractor of the single throw lever type including a plurality of nail-gripping jaws movable relative to the lever.
  
[List of Patents for class 254 subclass 24]    24Cam and wedge actuated:
 This subclass is indented under subclass 23.  Nail extractor of the single throw lever type including a plurality of nail-gripping jaws movable relative to the lever and actuated to grip the nail by wedge or cam action.
  
[List of Patents for class 254 subclass 25]    25Claw bar:
 This subclass is indented under subclass 21.  Nail extractor of the single throw lever type in which the nail-engaging means is merely a claw fixed to or forming part of the lever.
  
[List of Patents for class 254 subclass 26]    26Hammer:
 This subclass is indented under subclass 25.  Claw bar nail extractor combined with conventional hammer structures.
  
[List of Patents for class 254 subclass 27]    27Pivoted fulcrum member:
 This subclass is indented under subclass 25.  Claw bar nail extractor provided with a fulcrum member pivotally connected to the lever or bar.

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36+,for pinch bar car pushers.
  
[List of Patents for class 254 subclass 28]    28STAPLE PULLER:
 This subclass is indented under the class definition.  Implement especially designed for pulling staples.

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227Elongated-Member-Driving Apparatus,   subclass 63 for combined apparatus for applying and withdrawing a member, e.g., staple.
  
[List of Patents for class 254 subclass 28.5]    28.5THILL-COUPLING JACK:
 This subclass is indented under the class definition.  Device for forcing thill irons into axle clips against resilient antirattling devices or for forcing antirattlers into their positions in thill couplings.
  
[List of Patents for class 254 subclass 29]    29PIPE OR ROD JACK:
 This subclass is indented under the class definition.  Jack especially designed for driving or pulling pipes, pump rods, piles, or the like, other than by impact.

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43,and 44, for some analogous structures for shifting rails longitudinally.

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29Metal Working,   subclass 237 for apparatus for assembling or disassembling couplings and conduits.
173Tool Driving or Impacting,   subclasses 141+ , and see the search notes therein for an advance causing or controlling means in combination with a tool-driving or-impacting device.
249Static Molds,   subclass 213 for tie rods or wires having a force multiplying component permanently attached thereto or remaining with the rods or wires when they are in use with a static mold.
405Hydraulic and Earth Engineering,   subclass 184 for methods and apparatus for advancing a length of pipe through an earth formation; and subclasses 232+ for impact devices and other means for forcing a pile into the earth when the structure of the pile is involved.
  
[List of Patents for class 254 subclass 30]    30Lifter:
 This subclass is indented under subclass 29.  Jack for raising pipes, rods, piles, and the like.
(1) Note. Jacks of more general application but provided with grapples for pulling stumps or the like are classified under the structural subclasses elsewhere in this class.

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18+,for nail extractors.
  
[List of Patents for class 254 subclass 31]    31Reciprocating clutch:
 This subclass is indented under subclass 30.  Pipe or rod lifters comprising clutch means for engaging with the pipe, rod, or the like, and mechanism for reciprocating said clutch means.

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106+,for analogous structures.

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173Tool Driving or Impacting,   subclasses 53+ for a tool drive in which a tool is reciprocated by tool shaft gripping means which release or yield to permit advance.
188Brakes,   particularly subclass 67 for a brake mechanically connected to a relatively stationary structure and which holds a pipe or rod at various locations along the pipe"s or rod"s length for short, quick linear assembly or disassembly during a work or manufacturing operation or preparatory to a working operation done by the pipe, rod or a pipe supported tool.
294Handling: Hand and Hoist-Line Implements,   subclasses 86.4+ for pipe-lifting grips.
  
[List of Patents for class 254 subclass 32]    32AXLE LUBRICATING JACK:
 This subclass is indented under the class definition.  Implement for use in raising vehicle wheels or axles for the purpose of lubricating the axle and including structure relating especially to such use, such as oiling devices, wheel rests, wrenches or means for removing the wheel.

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81Tools,   subclass 2 for the combination of wrench and oiler only.
  
[List of Patents for class 254 subclass 33]    33CAR JOURNAL BOX LIFTING:
 This subclass is indented under the class definition.  Lifting implement and support including structure especially designed for use in lifting journal boxes of cars.
  
[List of Patents for class 254 subclass 34]    34Suspended lifter:
 This subclass is indented under subclass 33.  Car journal box lifting implement including means for suspending the load from the wheel or axle; includes some jacks which lift the journal box by rotation of the car wheel.
  
[List of Patents for class 254 subclass 35]    35CAR PUSHER TYPE:
 This subclass is indented under the class definition.  Pushing implement designed especially for moving vehicles and operating between the vehicle and a rail or other portion of the road surface.
(1) Note. This subclass does not include apparatus forming a permanent part of the vehicle structure, whether serving as the usual or an auxiliary propelling means, nor propelling devices comprising traction wheels engaging a road surface.
  
[List of Patents for class 254 subclass 36]    36Pinch bar:
 This subclass is indented under subclass 35.  Car pusher for the type commonly known as "pinch bars", comprising a lever operating between a wheel and the road surface.
  
[List of Patents for class 254 subclass 37]    37Rail clamping:
 This subclass is indented under subclass 36.  Pinch bar type car pushers including movable jaws for clamping the rail.
  
[List of Patents for class 254 subclass 38]    38Pivoted wheel engaging member:
 This subclass is indented under subclass 36.  Pinch bar type car pushers comprising a pivoted member mounted upon or actuated by the power lever to engage and move the vehicle wheel.
  
[List of Patents for class 254 subclass 39]    39DOOR BRACE:
 This subclass is indented under the class definition.  Prop or brace for forcing a door into tightly closed position or holding it closed.

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292Closure Fasteners,   subclass 338 for braces holding closures in adjusted positions.
  
[List of Patents for class 254 subclass 40]    40PRINTER"S QUOIN:
 This subclass is indented under the class definition.  Device for locking up or fastening type in chases or galleys.

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101Printing,   subclass 394 for quoins, combined with special chase structure; and subclass 368 for register hooks and similar adjustable clamping devices for printing surfaces.
276Typesetting,   subclasses 40+ for similar devices involving combination with galleys or of special adaptation to galleys.
  
[List of Patents for class 254 subclass 41]    41Screw:
 This subclass is indented under subclass 40.  Printer"s quoin expanded directly by screw mechanism.
  
[List of Patents for class 254 subclass 42]    42Wedge:
 This subclass is indented under subclass 40.  Printer"s quoin in which the forcing members are wedges.
  
[List of Patents for class 254 subclass 43]    43RAIL OR TIE SHIFTER:
 This subclass is indented under the class definition.  Implement for moving railway ties or rails laterally without lifting them.

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33Geometrical Instruments,   subclass 651.1 for track gages not including means for forcing the rails laterally.
72Metal Deforming,   subclasses 212+ and 389+ for a three-point bending jack.
104Railways,   subclass 2 for track-laying machines for performing other operations in addition to shifting the track.
  
[List of Patents for class 254 subclass 44]    44Single throw lever:
 This subclass is indented under subclass 43.  Rail or tie shifters in which the shifting element consists of, or is actuated by, a lever having a single throw.
  
[List of Patents for class 254 subclass 45]    45VEHICLE BODY LIFTERS:
 This subclass is indented under the class definition.  Apparatus especially designed for lifting hay racks, wagon boxes, car bodies, and the like, from the running gear or trucks.

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414Material or Article Handling,   subclasses 383+ for a load-transporting-type vehicle and the external means which cooperates in the loading or unloading of the vehicle and wherein the means is one which cooperates with the motion of the vehicle to reorient the load body, relative to the wheels, into a load-releasing attitude; and subclass 386 for another such vehicle and means, but wherein the means comprises a driven device for engaging and moving a portable load body relative to the remainder of the vehicle.
  
[List of Patents for class 254 subclass 46]    46Lever and drum:
 This subclass is indented under subclass 45.  Vehicle body lifters in which the body is lifted by a lever or levers actuated by a cable and drum.
  
[List of Patents for class 254 subclass 47]    47Cable hoist:
 This subclass is indented under subclass 45.  Vehicle body lifters in which the bodies are supported and hoisted directly by cables passing over drums or pulleys.

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266+,for apparatus for hauling or hoisting a load including a rotatably driven drum and cable.

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74Machine Element or Mechanism,   subclasses 89.2+ for a drum and cable used to reciprocate or oscillate one component of an apparatus relative to another component of the apparatus.
226Advancing Material of Indeterminate Length,   appropriate subclasses for methods of, and apparatus for, feeding material without utilizing the leading or trailing ends to effect movement of the materials.
  
[List of Patents for class 254 subclass 48]    48Vehicle attached drum:
 This subclass is indented under subclass 47.  Cable hoist for vehicle bodies in which the cable-actuating drum is attached to some part of the vehicle, generally the vehicle body.
  
[List of Patents for class 254 subclass 49]    49Swinging side bar:
 This subclass is indented under subclass 45.  Vehicle body lifter comprising pivoted side bars, between which the running gears move and by which the body is lifted.
  
[List of Patents for class 254 subclass 50]    50Single fixed pivot:
 This subclass is indented under subclass 49.  Vehicle body lifter of the swinging side bar type in which the side bars tilt about a single fixed pivot.
  
[List of Patents for class 254 subclass 50.1]    50.1RESILIENT TIRE-CASING SPREADERS:
 This subclass is indented under the class definition.  Apparatus comprising means for engaging and applying force either to spread apart or to press together the beads or side walls of resilient tire casings.
(1) Note. The spreading apart of the beads is usually disclosed as opening the interior of the casing for inspection, while the pressing together of the side walls is usually disclosed as opening up surface defects in the tread portion of the casing.
(2) Note. The "means for engaging and applying force" referred to in the definition is to be construed as excluding devices which merely hold the tire casing in deformed position. See Class 81, Tools, subclass 15.3 for such devices. Tire spread holders which are provided with means adapting the device to use also as a spreader are provided for in this or the indented subclasses.

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81Tools,   subclasses 15.2+ for resilient tire repair tools in general, particularly subclass 15.3 (see (1) Note), and subclass 485 for hand manipulative tools for spreading portions of an article apart.
156Adhesive Bonding and Miscellaneous Chemical Manufacture,   subclasses 394.1+ for casing spreaders in combination with tire-building apparatus.
157Wheelwright Machines,   subclasses 1.17+ for tire spreaders used in applying tire casings to wheels, e.g., (a) devices which spread tire casings while the casing is on a wheel, (b) spreaders combined with means to apply a casing to, or remove it from, a wheel, or (c) spreaders convertible to use as tire-casing compressors used in applying the casing to a wheel.
425Plastic Article or Earthenware Shaping or Treating: Apparatus,   subclass 48 for apparatus for reshaping or vulcanizing a tire including a curing bag inserter or remover.
  
[List of Patents for class 254 subclass 50.2]    50.2Spreader and tire casing relatively movable or rotatably mounted:
 This subclass is indented under subclass 50.1.  Apparatus in which (a) the spreader is provided with means to move it, or adapting it for movement, relative to the casing while the casing is in spread condition, or (b) the spreader and casing are supported for rotary movement together.

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157Wheelwright Machines,   subclasses 1.22+ for devices for assembling or disassembling tires and wheels embodying tire-engaging means adapted to move circumferentially of the tire.
  
[List of Patents for class 254 subclass 50.3]    50.3Fluid pressure operated:
 This subclass is indented under subclass 50.1.  Apparatus in which the spreader operating means is actuated by fluid pressure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

93,and the notes thereto, for pushing and pulling devices in general, operated by fluid pressure.
  
[List of Patents for class 254 subclass 50.4]    50.4With tire casing support:
 This subclass is indented under subclass 50.1.  Apparatus in which the spreader is provided with means which support the tire casing against the action of gravity.

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50.2,and 50.3, for devices having supports for the spread tire in addition to the characteristics provided for in those subclasses.

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248Supports,   appropriate subclasses for supports in general.
  
[List of Patents for class 254 subclass 84]    84TRAVERSING JACK:
 This subclass is indented under the class definition.  Lifting jack which comprises, in addition to the lifting means, other means for moving the load or permitting it to be moved laterally other than by bodily movement of the jack as a whole.
(1) Note. Some patents for the traversing mechanism alone are included, the apparatus being designed for use as a base or support for a lifting jack. Jacks provided merely with a rocking head or base have not been placed here unless they include mechanism for positively shifting the load.

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104Railways,   subclasses 262+ for car-replacing jacks which both lift and traverse the vehicle by a single operation.
212Traversing Hoists,   appropriate subclasses for traversing hoists from which the load is suspended.
  
[List of Patents for class 254 subclass 85]    85Screw:
 This subclass is indented under subclass 84.  Traversing jack in which either the lifting or the traversing, or both, are performed by screw mechanism.
  
[List of Patents for class 254 subclass 88]    88INCLINED PLANE LIFTER:
 This subclass is indented under the class definition.  Lifting implement comprising an incline up which the load or load-carrying member travels.

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5,45 and 50, for hoist truck and vehicle body lifters using inclined planes.

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104Railways,   subclass 262 for car-shifting inclines leading to the level of the rail.
193Conveyors, Chutes, Skids, Guides, and Ways,