Abstract: A track assembly for a vehicle has a plurality of grousered track shoes and a cleaning member extending between at least two of the shoes. The member moves relative to the track shoes as the track assembly deflects and avoids the packing of dirt and material between the grousers of the track shoes.

Abstract: A housing assembly (10) connects a lamp (11) to a frame (12) of a work vehicle (53) or machine for general illumination. The lamp (11) is removable for use as an inspection lamp. The frame (12) has an opening (14) and a first flange (16). In the assembly (10), a lamp housing (24) has first and second opposed walls (28,30) and a front wall (32). The housing (24) is movable between a first position (34) at which the front wall (32) covers the frame opening (14) and a second position (36) at which the front wall (32) is spaced from the frame opening (14). The flange (16) and first wall (28) each have a respective one of a protrusion (20) and opening (22). The protrusion (20) and opening (22) are mated at the first position (34). Apparatus (26) removably connects the housing (24) to the frame (12) and maintains the housing (24) at the first position (34) for using the lamp (11) fixed to the frame (12) and allowing removal of the lamp (11) for use at other locations.

Abstract: A track assembly comprises a pair of laterally spaced links releasably secured to each track shoe thereof. A drive lug extends between the links and a rail is disposed on each link. A plurality of bolts provide common fasteners for releasably securing the links, track shoe, drive lug and rails together. A pair of such bolts are preferably disposed on each lateral side of each link to increase the lateral stability of the links and overall structure integrity of the track assembly.

Abstract: A welded assembly has first and second portions connected one to the other by welds about a common axis. Testing apparatus holds one of the portions against rotation about the axis and controllably exerts a torquing force of a preselected magnitude on the other portion. The torquing force is exerted about the axis and oriented relative to the welds for exerting a radial force through each of said welds. Application of the torquing force and radial forces provides nondestructive testing of the welded assembly and of the welds of the assembly, respectively.

Abstract: Restraint device for holding a windshield wiper assembly in a stored nonoperating position against inadvertent movement of the windshield wiper assembly and particularly the windshield wiper blade in directions normal to its usual path of wiping movement even in the absence of the windshield from its usual shielding position.

Abstract: A heat exchanger has a plurality of angularly oriented and spaced cooling cores. Closure means is provided for controllably opening and closing the space between the cores for cleaning the cores.

Abstract: A seal construction including a metallic channel having a base, spaced side walls extending from the base in the same direction, and arms spaced from the base on the side walls and having ends directed toward, but spaced, from each other. A resilient strip is removably captured in the channel and extends therefrom for engagement with an element to be sealed. The channel base may be welded to a metallic element prior to insertion of the resilient strip to obviate the need for aligned openings for securing means such as screws, bolts, or the like and/or bonding agents of dubious reliability in varying environments.

Abstract: A wheel of a driven track of a track-type vehicle has a rim connected to a hub with an annular chamber formed between the rim and the hub. A plurality of annular springs are positioned in the chamber and actuated by plungers in response to contacting a portion of the track. The springs controllably resist the impact forces of the track that are directed onto the wheel.

Abstract: A dual braking arrangement is provided for a vehicle whereby setting the hand brake will not affect the positioning of the foot-brake pedal and conversely the actuation of the foot-brake pedal will not affect the positioning of the hand-brake lever. A split linkage is provided whereby the brake actuator is splined to a dual operative lever, such that actuation of the dual operative lever by either the linkage connected to the hand-brake lever or the linkage connected to the foot-brake pedal, will actuate the brake.

Abstract: A method for extruding a track link bushing having a contoured opening and a generally cylindrical outer surface.

Abstract: A scraper has a frame with first and second spaced apart side elements, a bowl, and an ejector system. The ejector system is connected to the bowl and is movable, relative to the bowl, for receiving or removing material into and from the bowl.The ejector system has first and second motors, each connected to opposite sides of the frame at locations outwardly of the first and second side elements. A power means is connected to and positioned between the first and second frame side elements.

Abstract: Drive or driven wheels of a track-type vehicle have a hub and a plurality of teeth around the outer periphery each of which are spaced one from the other by an intervening root having an opening. A biasing hoop assembly having a multiplicity of generally concentric biasing hoops encompass the hub and are positioned between the hub and teeth. Actuating apparatus extends from the root into contact with the biasing hoop assembly and is generaly movable for deflecting the biasing hoops and resisting entry into the root for dampening impact, loads, and noise of elements entering the root.

Abstract: An improved prepared joint is provided on a fitting for mechanically joining it to the end of a metal tube. The fitting has a grooved bore and a bore extending end portion for projecting the bore a predetermined distance beyond its grooved portion so that during radial expansion of the tube into the grooved portion the entire expanded length of the tube is fully supported within the fitting. Such support is effective in extending the useful life of the tube assembly formed by the fitting and tube by alleviating metal fatigue failures due to vibrational bending stresses in the expanded portion of the tube.

Abstract: A composite "U" joint guard-step has a first member and a second member. A first assembly is provided for releaseably maintaining the first member in substantial mating alignment to the second member. A second assembly is provided for maintaining the second member at a preselected position relative to a "U" joint.The first member has first and second flanges and a middle portion and is of an elongated channel and inverted "U" configuration. The middle portion is generally planar and generally horizontal to provide a step for an operator. The first member is of a configuration sufficient for extending over and being spaced from the "U" joint.The second member has first and second flanges and is of elongated channel configuration. The second member is of a size sufficient for mating with the first member at the first and second flanges, while being spaced from the "U" joint. In combination with the first member, the first and second members encompass the "U" joint.

Abstract: A fluid system has a plurality of pumps, left and right track motors and a plurality of work elements. First elements are provided for controllably delivering fluid from a first plurality of pumps to the left track motor and for controllably bypassing the left track motor and delivering fluid from at least one of the first plurality of pumps to a separate respective work element. Second elements are provided for controllably delivering fluid from a different plurality of said pumps to the right track motor and for controllably bypassing the right track motor and delivering fluid from at least one of the second plurality of pumps to a separate respective work element.

Abstract: Wheels of a crawler-type vehicle have rims that are laterally movable relative to the axis in response to a force subjected on the rim. The rim is biased by resilient material to return to its normal position in response to removal of the force on the rim.

Abstract: A vehicle wheel has rims that are radially movable relative to the hub in response to forces acting on the rim. The rim is biased by resilient material to return to its normal position in response to removal of the force on the rim.

Abstract: A vehicle engine radiator assembly has a radiator having first and second opposed surfaces, an inlet conduit, and an outlet conduit. A fluid coupling is connected to each conduit and is of a construction sufficient for pivotal movement of the radiator for controllably directing either the first or second surface outwardly from the vehicle. Means is provided for permitting pivotal movement of the radiator and maintaining the radiator fixed to the vehicle at a preselected position. The radiator is pivoted for changing the direction of air flow therethrough for removing dirt and other materials from the radiator.

Abstract: An air brake control system of high reliability is provided for a vehicle of the type having front wheel brakes, rear wheel brakes, a first brake control element such as a pedal which actuates the front and rear brakes, and a second brake control element such as a pedal which also actuates the front and rear brakes. First and second pneumatic circuit means for controlling the brakes are duplicated back to the outlet of the air compressor in an arrangement where one side of the circuit is automatically isolated from the other to maintain braking capacity if a loss of air pressure occurs on the one side. Means is associated with air streams of only a selected one of the first and second means for providing a function absent in said first and second means. A transmission neutralizer is also operated by one of the pedals.

Abstract: A door holding apparatus has rotatable and pivotal holding means that is spring biased for contacting a catch and is positioned generally along a plane of an adjacent structure in a stored position and contacting and maintaining a door at a preselected location at a door holding position.