Abstract: A double acting hydraulic actuator for operating in a power shift transmission. An accumulator operates with two hydraulic clutches to dampen surges in pressures and to store energy in the hydraulic system during operation of the hydraulic system.

Abstract: A metering arrangement for limiting the advance of the filter media in an automatic roll filter having a timer which periodically energizes a drive motor adapted to draw the media through the filtering zone of the apparatus. The arrangement includes a metering reel which is adapted to rotate in direct proportion to the lineal advance of the filter media, a magnet mounted on the reel which generates a magnetic field limited to a predetermined arc of the periphery of the reel, and a reed switch which is actuated by the magnetic field to signal an electrical circuit to shut off the drive motor after a preselected increment of the filter media has been drawn into the filtering zone of the apparatus.

Abstract: The invention disclosed comprises twin clutch packs for a power shift transmission to provide two power paths through the power shift transmission and means for combining the drives in a single output drive.This invention relates to a power shift transmission and more particularly to a transmission having twin clutch packs for dividing the drive in separate power paths through the transmission and recombining in a single output drive. The transmission is a countershaft transmission having a common countershaft for the twin drives through the transmission which recombine as the drive is transmitted to the output shaft.With an increase in size and power transmitted through a power shift transmission a greater area of clutch plate surface or brake disc surface is required to transmit the increase in torque. Since the clutches are the greatest problem in transmitting increased power a doubling of the power transmitted through the transmission requires a redesign of the whole transmission.

Abstract: A control mechanism for a differential lock having a control pedal isolated from the operating mechanism for engaging the differential. A platform resiliently mounted on the vehicle allows relative movement between the platform and the chassis. A foot operated control element mounted on the platform extends through the platform to a point adjacent an operating mechanism on the vehicle chassis. The operating mechanism selectively operates the differential lock control valve and in its retracted position completely disengages the operating mechanism. The differential lock valve is maintained by a detent in its actuating position and can be released by operating a brake system having a relay valve in the differential lock valve. When the brake system is operated, the relay valve releases the detent means in the differential lock valve allowing the valve to return to its differential release position and the operating mechanism to return to its retracted position.

Abstract: A ball joint assembly for a draft link of a three-point hitch on the tractor. The ball can be assembled through a slot in a side of the link and rotated in a spherical socket where it is retained by a retaining element.

Abstract: A front end weight carrier for supporting a plurality of front end weights underneath the grille of a tractor in a manner for conveniently changing the number of weights mounted on a support bar.

Abstract: A combination lighting and filtering unit adapted to be mounted in the ventilated ceiling structure of a clean room wherein clean air is directed downwardly into the interior of the room. The unit includes a flow-through light housing having a plurality of florescent light bulbs secured across its interior, sized to overlie and enclose one of a plurality of apertures provided in a mounting grid in the ceiling structure, and an interchangeable filter unit removably mounted in flow-through relation across the top of the housing which is also adapted to be mounted in the apertures on the grid.

Abstract: A side panel latch for an engine hood on a tractor having vertical and horizontal adjustment to assure accurate panel fit and reliability of the latch operation.

Abstract: A sealing means on a vehicle cab for force and motion transmitting members between the control levers in the cab and the control devices external of the cab.The force and motion transmitting members or energy transmitting members are connected to the controls and extend through an opening in the corner of one of the cab walls and the floor. A carrier plate having slots receives the cables or wires and a plate having a deformable layer is clamped between the cover plate and the carrier plate to form an airtight seal around the cables or wires thereby closing the opening in the wall and floor and providing an airtight seal and a thermal insulating medium as well as a sound dampening device.

Abstract: A means maintaining compressive force in a seal assembly to assure seal reliability. The valve cover is fastened to the engine head with a shoulder bolt which carries Belleville washers compressively positioned between the bolt head and valve cover. The gasket load and deflection is determined by the compressive force or gasket loading of the Belleville washers on the unthreaded length of the shoulder bolt. The resilience of the Belleville washers maintains a continuous force on the gasket for the life of the sealed assembly.

Abstract: A collecting assembly for removing liquid vapors and particulates from a dirty gas stream including a housing having a dirty gas inlet and a clean gas outlet, a gas treating passage extending through the housing interconnecting the gas inlet and the gas outlet, a blower or fan adapted to draw the dirty gas stream into the housing through the gas inlet where it flows through an electrostatic precipitating section, and an oil spraying or fogging assembly adapted to periodically spray an atomized oil mist onto the discharge and collecting plates of an electrostatic collecting assembly mounted in the precipitating section to irrigate and wash accumulated particulates off the plates while continuing gas cleaning operations.

Abstract: A means of evenly distributing the air flow through the core of an intercooler across the total cooling surface of the core.

Abstract: A clutch pedal pivoting a fore and aft shaft mounted in a fire wall for transmission of the clutch actuating force through the fire wall for disengaging and engaging a vehicle clutch.

Abstract: A double seal arrangement for a rotating shaft having an intermediate oil containing damping medium to lubricate the primary and secondary sealing lips.

Abstract: A combination seal for a rotating member having a stationary oil seal mounted on a housing and a rotating dust seal carried on a rotating member together with a slinger to throw off dust particles.

Abstract: An engine balancer for a four cylinder engine for balancing secondary unbalance forces. The balancer is a Lanchester balancer having cylindrical counterweights with provisions for aligning the counterweights, the gears and the crankshaft in the assembly on the engine.

Abstract: A pin lock for a turnbuckle of an ajdustable link on a three-point hitch. The pin locks the threads of the turnbuckle and is retained in the locking position by a retainer ring.

Abstract: A hydraulic detent lock for a transmission wherein the pressurized fluid for actuating a hydraulic clutch also operates a detent on the shift rail for a mechanically operated transmission to maintain engagement of the gears.

Abstract: A hydrostatic drive system having a closed loop front wheel drive circuit and a closed loop rear wheel drive circuit. A variable displacement pump in each of the circuits is cammed to vary the displacement delivered to dual displacement wheel motors to provide two speed ranges for the drive system. A servosystem uses hydraulic fluid to cam the displacement of the variable displacement pump and a hydraulic control to selectively engage each of the drive ranges.