Abstract: A vehicle wheel, on which a tire is mounted, comprised of two rim portions fixed together by fastening bolts is provided with a means to prevent disassembly of the rim portions while the tire mounted thereon remains inflated. In the preferred embodiment, a cover plate affixed to one of the rim members by a hinge is positionable over the heads of the fastening bolts and retained thereon by an elongated pin having an enlarged head, the pin extending through an aperture in the rim. The locking pin is urged to this locking position while the tire is inflated by pressure in the tire.

Abstract: A track-type vehicle comprises a track roller frame mounted on either side thereof and an endless track assembly mounted on each of the frames. An endless track assembly is entrained on the track roller frame and adapted to be driven by a sprocket operatively engaged therewith. The final drive for the sprocket comprises a rotatable input shaft having a sun gear secured thereon and meshing with a first set of planetary gears which react against a stationary first ring gear. Each gear of a second set of planetary gears is rotatably mounted on a rotatable carrier by a common shaft also having a respective gear of the first planetary gear set mounted thereon. The gears of the second planetary gear set mesh with a second ring gear rotatably mounted in the final drive and secured to the sprocket for simultaneous rotation therewith.

Abstract: A spline lubricating device comprises a capsule defining a chamber filled with lubricating fluid on one end of a splined shaft. The splined shaft and lubricating capsule is inserted into an internally splined member which contains a centrally disposed slinger, and a plunger mounted in the slinger for engaging the capsule for releasing the fluid from the lubricating capsule with the slinger directing the fluid to the spline teeth.

Abstract: A flow control valve includes a valve body defining a main bore and a cross-drilled bore communicating therewith. A valve spool is reciprocable within the main bore and includes first and second lands connected by a reduced diameter connecting portion. The connecting portion has fixed relative thereto and thereabout an annular rib, positioned between the two lands. The rib acts as a guide to direct fluid substantially perpendicular to the axis of reciprocal motion of the spool when the spool is positioned to allow fluid flow between the main and cross-drilled bores, to minimize fluid flow forces tending to hold the spool in an open position.

Abstract: A resilient, cushioned fastening device for mounting protective cabs and the like on a vehicle, comprising a rubber-like base pad disposed between the vehicle and the cab for cushioning same, securing means in the form of a bolt and large washer for holding the cab securely on the vehicle over said base pad, with resilient cushioning means in the form of a bushing on said securing means formed to provide a complete dampening barrier between the cab and main body of the vehicle. The cushioning means is formed with an upper flange portion fitting under a large washer for completing dampened restraints against vertical vibrations, with the entire structure being made strong enough to hold the cab in place in the event of overturning or wrecking.

Abstract: An earthworking device comprises an adapter having a tip detachably mounted on a forward end thereof. A flat pin of rectangular cross section, disposed in aligned bores formed through the adapter and the tip, is held in place by a triangularly shaped spring clip which straddles notches formed on the pin.

Abstract: A method of treating human patients suffering from immune deficiency diseases by extracting a "transfer factor" from leucocytes obtained from healthy donors who exhibit immune response to said diseases and injecting said "transfer factor" into said diseased patients to thereby suppress disease symptoms.

Abstract: A control linkage system for interconnecting the servo valves of a pair of variable displacement hydraulic machines includes means to permit separate inputs to control one servo valve relative to another interconnected therewith.

Abstract: A furniture construction comprises a rigid frame having seat and back cushions removably mounted thereon. A rearward end of a support member for the seat cushion and a lower end of a support member for the back cushion meet at a common interface which forms an acute angle with respect to the planes of such members. A retaining member is secured on a back side of the support member for the back cushion to upwardly engage a retaining member secured on a back frame. The support member for the seat cushion is releasably attached to a bottom frame to provide the sole mechanical securance for both cushions to the frame.

Abstract: A control lever arm pivotably mounted on a shaft has associated therewith a plurality of friction discs, and washers disposed between alternate adjacent friction discs. Means are included for adjusting the tightness of the friction discs and washers, such adjustment thereby varying the force which must be applied to the lever arm to overcome the force of such friction discs and pivot the arm about the shaft.

Abstract: A furniture construction, such as a chair, table or foot stool, may be made by cutting a flat circular member into a plurality of panels along chordal lines thereof. The chair, for example, may be formed out of four identical panels, as defined by first and second perpendicular pairs of parallel chordal cut lines. In assembling the chair, seat and back panels are clamped between a pair of laterally spaced side panels by a plurality of tie rods and the back panel is adjustably mounted on the seat panel. In the preferred embodiment of this invention, the edges of the panels are each covered by cushioned edging means comprising a plurality of first fibrous ropes extending the full length of such edge and a second continuous fibrous rope extending sequentially through a plurality of apertures spaced along and inwardly of the edge in spiralled and wrapped relationship over the first ropes to bind them against the panel.

Abstract: A compactor wheel is rotatably mounted on a vehicle and comprises a plurality of pads disposed on the periphery thereof for compacting purposes. A cleaning bar assembly is mounted on the axle housing of the vehicle and comprises an integral U-shaped frame having a plurality of cleaning bars secured thereon to extend inwardly between the pads of the compactor wheel for removing material therefrom. The bars are secured on a pair of legs of the frame which straddle the compactor wheel in parallel relationship relative to the rotational axis thereof. Each of the legs has an adapter means secured on an outboard end thereof adapted to selectively attach an outboard support bar thereon to form a box-like frame enclosing the compactor wheel.

Abstract: A hydraulic control system having a load-lifting hydraulic motor, a source of pressurized fluid and a pilot-operated directional control valve for directing fluid for operation of the motor is provided with a combined restrictor and shuttle valve assembly that is operative to direct fluid from a pump for pilot-operation of the main control valve when the pump is in operation, but is operative upon failure of the pump system to provide pressure from the load-lifting side of the lifting motors to a pilot control valve for pilot operation of the directional control valve. This assembly provides an emergency source of hydraulic pilot fluid for pilot operation of the main control valve for lowering the implements or load supported by the hydraulic motors should the engine of the vehicle fail.

Abstract: A bulldozer blade comprises a push plate having a cutting edge mounted on a lower end thereof and a plurality of structural members secured on the back of the push plate and welded together to increase the structural integrity thereof. Each adjacent pair of such members are joined together at a weldment comprising a groove and contiguous dam formed on a surface of one member to have a corner of the other member disposed adjacent thereto and common weld means at least substantially filling the groove and securing the members together. The groove and dam are preformed on an arcuate portion of the first member during a cold forming operation.

Abstract: The present invention provides an index apparatus comprising a base, a cover, locking and unlocking means, indexing means, a coil spring, cards etc. When compared with conventional ones, the apparatus of the present invention has the following main features. The construction and the fitting to impart the opening capacity to the cover of an index apparatus are very simple. To mention more fully, the opening capacity can easily be given to the cover only by inserting the coil spring in the contracted state into the projections on the base without conventional fastening with iron core inserted into the coil spring. Unlike conventional ones, the index means of the index apparatus in the present invention is simple in its construction and easy to fit. The indexing means consists of two parts, the indexing member made of semi-hard synthetic resin and the slider made of elastic material, and is characterized by its easy fitting without any processing.

Abstract: An apparatus for filling and removing liquid ballast from a tire comprises a fluid circuit including a pressurized air tank and a liquid storage tank each operatively connected to an adapter releasably attached to the rim of a tire in lieu of its conventional valve stem. During removal of the liquid ballast, pressurized air is communicated through the adapter to pressurize a closed chamber of the tire to pump the liquid ballast to the storage tank. Upon refilling of the tire, pressurized air is communicated to the storage tank to pump liquid back into the tire.

Abstract: A detent mechanism for a reciprocably mounted valve spool includes a plunger mounted in a housing surrounding an end of said spool and including guide means for the plunger at its forward end and its rearward end to provide guide support of the plunger as it is biased into engagement with detent grooves formed on the valve spool. The detent assembly includes an assembly of parts including biasing means and guide means retained in their operative relationship with the plunger for ready insertion or removal from the housing.

Abstract: A parking brake assembly for applying braking force to a vehicular differential by means of an adjunctive pinion. The parking brake is pressure released and spring engaged to selectively lock the differential. An auxiliary steering pump is also associated with the differential by means of the adjunctive pinion such that the steering pump is driven by the adjunctive pinion. The parking brake assembly includes a plurality of friction discs and plates which are forcibly brought into and out of engagement for selectively applying or releasing the brake.

Abstract: There is disclosed a fuel injector assembly having a disc type delivery valve and a reverse check combined with the delivery valve to control secondary pressure to reduce fuel line erosion due to cavitation. The arrangement provides an unobstructed passageway for fuel delivery upon opening of the valve.

Abstract: A step apparatus comprised of a bracket and a step assembly is adapted to be affixed to a machine such as an excavator. The step assembly is mounted in the bracket and pivotable to first and second positions relative to the bracket. A resilient means associated with the step assembly urges the step assembly toward the second position. Locking means are operatively connected with the bracket and the step assembly. The step assembly is urged in a first direction while in its first position relative to the bracket by the resilient means to engage the locking means and secure the step assembly in its first position. The step assembly is movable in a second direction while in its first position to disengage the locking means to allow the step assembly to be urged to its second position.