Abstract: A lower draft arm extension link stop in a tubular member of a lower draft arm of a three-point hitch for engaging the extension link in its extended position. The extension link is provided with a relief portion which clears the stop when the link is angular inclined so that it can be withdrawn from the tubular member. The tubular member includes a latch, axially aligned with the stop, for holding the link in its contracted position.

Abstract: A dual wheel and axle assembly having a wedge lock hub and axle assembly with an auxiliary clamp to augment the grip of the hub on the drive axle. A drive is provided to force bushing segments between the wheel hub and the drive axle to firmly lock the wheel hub and axle together. One of the bushing segments has an extension which extends axially along the drive shaft and carries a clamp in the form of at least one U-bolt having curvature mating that of the peripheral surface of the drive axle. The U-bolt is firmly clamped against a portion of the drive axle while the extension of the bushing segment which has an integral key firmly seats in a key slot of the drive axle to augment the grip of the wheel hub on the drive axle to accommodate additional torque produced by adding dual wheels to a conventional single wheel drive on the tractor.

Abstract: An instrument panel including a lighting circuit, lights and signal indicators mounted on the instrument panel in a manner for ease in assembly and convenience for servicing. Indicator lights on the instrument panel will signal various operating conditions of the engine and the tractor. A cable is connected between the lighting circuit which is formed by a printed circuit on a circuit board and a sensing circuit which senses the sensed conditions of the engine and tractor. Light bulbs are positioned in compartments which are covered by windows carrying a symbol to indicate to the operator the operating condition of the tractor. The wiring is simplified by incorporating the connecting wires in a cable and a connector with a plug and socket arrangement for connecting the light circuit and sensor circuits for a simplified assembly and repair of the system in general.

Abstract: A transmission brake with a lubricating and cooling means whereby a portion of the actuating fluid is used to cool the transmission brake and lubricate the brake disks while the transmission brake is operated.

Abstract: An adjustable lift link on a three-point hitch having a self-locking handle and retainer for selectively adjusting and holding the adjustment of the lift link. A stop on the link selectively provides the float or fixed length positions of the link of the three-point hitch.

Abstract: A foam seal and insulator for sealing a compartment in the control console and attenuating sound in the compartment which contains a plurality of actuating levers for controlling the operation of the vehicle with actuating cables extending through the insulator to control the operation of the vehicle.

Abstract: A vehicle transmission shift lever remotely operating a shifting member on a transmission for shifting the transmission and an interlock for locking the transmission in its shifted position.

Abstract: A draft load sensing mechanism for a vehicle having a torsion bar carrying the draft load from the lower draft arms which produce a torsion load on the bar. A preload adjusting screw applies a preload torque to the torsion bar and a load limit adjusting screw limits the maximum torque load that can be applied to the torsion bar responsive to the draft load on the vehicle.

Abstract: An isolated step mounted on an isolated cab of a tractor with stabilizer means isolating the step from the vehicle chassis and dampening vibrations primarily through shear stress of an elastomer.

Abstract: An isolated step on a tractor with means isolating the step from the vehicle chassis and for dampening vibrations of the step which is mounted on an isolated cab of the tractor.

Abstract: A load-sensing device for sensing strain on the rear drive housing responsive to draft loads on the vehicle for generating a signal for controlling the raising and lowering of an implement through a hydraulic system of distributing vehicle weight or vehicle and implement weight.

Abstract: A pivotal support for a vehicle drive line of an articulated vehicle using gimbal rings supporting two universal joints and equally dividing angularity of these two joints and controlling the angularity of a third universal joint of the drive line.

Abstract: A protective frame for a vehicle for protecting the operator in the event of vehicle rollover. A protective frame having tubular uprights with a plurality of reinforcing members of variable length extending from the base upwardly internally of said tubular uprights to stiffen the frame.

Abstract: A shift lever position indicator for a shift lever which is rotatable on a longitudinal axis and pivotal on a transverse axis to selectively shift a vehicle transmission while the indicator indicates the position of the shift lever and the shifted position of the vehicle transmission.

Abstract: A differential valve in a fuel injection nozzle having double conical surfaces with a smaller included angle between the valve and the valve seat of the valve body below the valve seat seal than the included angle between the valve and valve seat of the valve body above the valve seat seal so the effective seat seal of the valve will migrate downstream. An annular groove is provided on the downstream conical surface below the seat seal to limit the migration of the effective seat seal of the differential valve during use.

Abstract: A vehicle steering and chassis oscillation system with a steering mechanism for steering the vehicle through articulation and a chassis oscillation mechanism for controlling the transverse oscillation of the chassis through pivoting of a link in the articulating mechanism of the vehicle. The oscillation control of the chassis is accomplished through pivoting of a connecting link between the axle and the chassis to tilt the axis of articulation as the connecting link is pivoted. The oscillation of the articulating axis is generated by the suspension system for the vehicle.

Abstract: A lubrication wand for lubrication of bearings in a dry compartment of a power train providing forced lubrication by connection of the lubrication wand to the hydraulic lubrication system.

Abstract: A rotatable shift lever for selectively shifting a vehicle transmission by rotating the shift lever handle and pivoting the lever to selectively engage the desired gear ratio of the transmission.

Abstract: A sound abatement device for an internal combustion engine including a contoured shell resiliently mounted to reduce sound transmission through the shell mounting. The shell is formed of plastic filled with powdered metal to reduce transmission of air transmitted sound from the engine through the shell.

Abstract: A vehicle steering and chassis oscillation system with a steering mechanism for steering the vehicle through articulation and a chassis oscillation mechanism for controlling the transverse oscillation of the chassis through pivoting of a link in the articulating mechanism of the vehicle. The oscillation control of the chassis is accomplished through pivoting of a connecting link between the axle and the chassis to tilt the axis of articulation as the connecting link is pivoted. The oscillation of the chassis through oscillation of the articulating axis provides for a means of leveling the vehicle chassis when the terrain carrying the vehicle is on an incline.