Abstract: A dump truck having a canopy on the dump body which extends over an operator's cab is provided with a latch means for holding the dump body in its lowered transport position and is released only in response to initiating the intentional pivoting of the dump body to its raised position.

Abstract: Force-measuring devices are provided for measuring the force transmitted between two members, including a force-transmitting element of resiliently deformable material and of generally C-shaped cross-sectional configuration having inner and outer generally cylindrical and concentric surfaces and an axially extending slot defined by facing angularly spaced surfaces. The outer cylindrical surface is engagable by the members at diametrically opposite portions of the element which lie along a diametral plane generally transverse to a radial plane through the slot with the diametrically opposite portions being relatively displaced toward each other in proportion to the force transmitted between the members. Such displacement is measured by a potentiometer having an arm rotated through a lever member from displacement of one of the diametrically opposite portions relative to the other.

Abstract: Engine location above or alternatively in front of the front axle of a two axle vehicle provides improved weight distribution in a tractor. Heat exchangers are located amidships with a fan drawing air through the heat exchangers and directing it around the engine. Heated air is directed away from the operator's compartment at the rear of the vehicle. Primary fuel tanks may also be mounted amidships and configured to provide arcuate planar surfaces for directing air borne noise and improving the flow of air to the heat exchangers.

Abstract: The combination of wheel bearing spindle, steering knuckle and brake support assembly is formed from a one piece casting for use in a steerable driving axle. The wheel bearing spindle portion has a generally conical shape and an axial bore of a shape adapted to receive the driven axle. A brake support portion is integrally formed from the rear surface of the wheel bearing spindle portion and includes convex web member that carries a pair of diametrically opposite brake shoe mounting flanges which are closely spaced to the wheel bearing spindle portion. The steering knuckle portion is integrally formed with and extends rearwardly from the convex web member of the brake support portion and includes a pair of radial arm support members which are formed with radially extending openings contiguous to the rear surface of the brake support web member for seating a kingpin bearing.

Abstract: A baler adapted for towing by a tractor to pick up a windrow of hay and roll the hay into a cylindrical bale of substantial size and weight. The baler includes a gate pivotable rearwardly and upwardly to permit discharge of a completed bale onto the ground behind the baler. The gate is raised and lowered through a hydraulic system powered from the tractor. The hydraulic system includes a pair of hydraulic cylinders connected to the gate to raise and lower it upon extension and retraction respectively of the cylinders. This action is controlled by a manual flow control valve accessible to the operator on the tractor. The hydraulic system further includes a manual selector valve accessible on the baler to hydraulically lock the cylinders in their extended position to thus lock the gate in its raised position when desired.

Abstract: A self-cleaning sprocket, especially for use with an endless belt having internal drive lugs in a crop gathering unit, being a body of material having a disk-like base portion and a plurality of radial ribs extending axially from the base portion and converging to a central hub portion, the ribs and base center portion defining a plurality of open-ended lug-receiving pockets. The portion of the base portion in the pockets slopes axially toward the open end from the periphery to the hub portion and the hub portion slopes radially inwardly from the base portion to the open end, the intersection of the hub and base portions being filletted to promote the flow of debris from the base portion to the hub portion. The axial end of the sprocket is preferably flat and without obstructions and extends beyond the lateral edge of the belt. The sprocket is preferably mounted with the pockets in a generally upright position from its opposite axial end whereat a second plurality of pockets are formed.

Abstract: A pilot source of fluid pressure allows the engagement of a lockable differential into a locked mode in response to a pressure signal directed to it. Metering of the signal is related to the operating condition of the implements being carried by the vehicle regardless of operator initiation of the differential locking control.

Abstract: Hydraulic mechanism in a transmission for engaging a clutch for forward or reverse before a clutch for first, second, or third speed. Flow of pressure fluid to the latter clutch is by way of a quick fill spool having a large orifice, a rate of rise spool, and a poppet therein having a small orifice. A restricted orifice of appreciable, straight longitudinal or helically turned length is used in connection with the spools and the poppet in such a way that, after the power unit for the clutch for first, second, or third speed is filled with fluid, pressure of the fluid in the power unit is raised at controlled rate to its maximum.

Abstract: An off-the-road earth-moving truck having a rearwardly dumping body, has equal weight distribution between a steerable drive axle and a drive axle both when fully loaded and when empty.

Abstract: A quick coupler device for use on tractor vehicles in which a quick attach plate is connected in place of the usual implement. Implements, equipped with complementary attachment fixtures, attach to the quick attach plate. A spring loaded latch automatically locks the implement to the quick attach plate and a projecting lug on the implement is engageable with a plate to hold the latch in an unlocked position.

Abstract: Gathering unit attaching apparatus is provided for a forage harvester of the type having a basic processing unit and a crop gathering unit which articulates in a vertical plane relative thereto. The attaching apparatus includes an attaching yoke pivotally mounted on a fixed transverse axis provided on the basic unit in proximity of the feed rolls. The attaching yoke provides a movable auxiliary axis about which the gathering unit pivots during the attaching process and securing elements for locking the gathering unit to the yoke for field operation. Apparatus is provided on the basic unit for pivoting the yoke about the fixed axis between a lowered generally forwardly extending pickup position and raised operating and transport positions.

Abstract: A baler adapted for towing by a tractor to pick up a windrow of hay and roll the hay into a cylindrical bale of substantial size and weight. The baler includes a front mounted pickup and a bale forming structure directly behind the pickup. The bale forming structure is of the type including an endless lower belt and a plurality of upper belts defining an expansible bale forming zone in conjunction with the lower belt. Suitable bale-density and bale-discharge structures are included. The baler includes a wheeled frame which provides a pivot connection for a draft tongue laterally offset from the baler centerline. The draft tongue extends forwardly for hitching to a tractor which can be disposed in towing relation alongside the windrow. A hydraulic cylinder is mounted between the baler frame and the draft tongue for powered steering of the baler relative to the windrow.

Abstract: A toroidal heat exchanger incorporates an air flow directing support cone housing a hydraulic motor used for driving an air propelling means at variable speeds depending on the cooling requirements of the host vehicle.

Abstract: A transverse appendage is spring biased into contact with a protuberance equipped platform. The platform protuberances act as detents impending arcuate travel of the transverse appendage. Tabs extending upwardly from the platform positively limit the arcuate travel of the transverse appendage.

Abstract: An air flow control mechanism for use in a radiator system of the type having a radiator core constructed from a plurality of parallel core sections which are equally spaced apart and aligned in a single row with the opposing faces of adjacent core sections being open to provide air flow passageways through each core sections at right angles to the cooling air directed at the front of the radiator core. The radiator air flow control mechanism comprises gate means operatively connected in each of the spaces between adjacent core sections to pivot between a first and second position, where the gate means in the first position directs the cooling air through each of the core sections' air flow passageways in one direction and where the gate means in the second position reverses the direction of flow through each of these passageways. A drive means is provided for reciprocally moving the gate means between the first and second positions.

Abstract: A plurality of segmented components are arranged to form a fixed radial heat exchanger. Each segment is an independent heat exchanger having a core of fluid tubes and air flow corridors between the tubes. Air flow is maintained through the heat exchanger by means of a propeller type fan mounted coaxially with the heat exchanger.

Abstract: A contoured shroud exit having means capable of producing low pressure vortices when a fan generated air stream is expelled therefrom.

Abstract: A fluid operated motor amplifies input force and communicates a greater amount of output force to a reaction device. Input effort is directly proportional to the amplified output effort. A power piston residing in a cylinder bore has an input rod, having a spool valve and a reaction piston, laterally movable through a bore in the power piston. Fluid flow is metered to a working chamber by the spool valve in response to the position of the input rod. An output rod moves with the power piston to deliver an amplified force to a linkage.

Abstract: This grab bucket comprises a pair of shells or scoops pivoted to the lower portion of a frame structure and operatively connected to a vertical hydraulic cylinder and piston actuator of which the piston rod is held against translation in relation to said frame structure, the upper end of the cylinder of said actuator carrying the pivot pins of links connected to said pair of shells or scoops. The frame structure comprises on the one hand an upper rocker rigid with the piston rod of said hydraulic actuator and on the other hand a frame structure body detachable from said rocker. The shells themselves are detachable from the base of the hydraulic cylinder to permit the operation of the grab bucket not only as a digging bucket but also as a rehandling bucket after disassembling the frame structure body and connecting the links to the rocker.