Abstract: A mobile land vehicle having an engine arranged to provide motive power to the vehicle and to pump or pumps in a hydraulic work circuit; the engine governed to operate at a given speed. An alternator is also driven by the engine and connected to provide alternating current to high intensity discharge lamps which are capable of operation only between a relatively narrow range of current frequencies. The drive means to the alternator produces a frequency near the high end of said range when said engine is at or near its governed speed and the frequency approaches the lower end of said range as the engine speed is lugged down under full load.

Abstract: An improved implement wheel includes two wheel halves permanently secured together, such as by welding. The first wheel half includes a bearing seat and the second wheel half includes a threaded nipple for receiving a bearing engagement member, such as a screw cap. A bearing is seated in the bearing seat defined in the first wheel half and is secured therein by the screw cap. The wheel bearing can be replaced easily by removing the screw cap, without necessitating wheel disassembly.

Abstract: A multiple clutch control system for controlling the operation of clutches in a multiple speed transmission of the type wherein the gear ratio of the transmission is operated by engaging one hydraulically operated clutch while simultaneously disengaging another hydraulically operated clutch includes circuitry responsive to the hydraulic pressure applied to the just engaged or on going clutch for preventing the disengagement of the other clutch until the hydraulic pressure applied to the just engaged clutch exceeds a predetermined level indicating that the just engaged clutch has engaged.

Abstract: A planter to be towed that includes a frame supported, rotatably mounted furrow forming disks that are arranged to substantially contact each other at the approximate point of entry into the soil and diverge apart rearwardly and upwardly, a seed tube for depositing seed into the furrow, a pair of rotatable gauge wheels having supports that individually and pivotally connect the wheels to the frame with each wheel being located generally adjacent an outer surface of a disk, furrow closing structure mounted rearwardly of the disks and gauge wheels, gauge wheel adjustment structure including a lever pivotally mounted on said frame and having one end adapted to engage and move the wheel supports, a slide for moving the other end of the lever, a plate having a plurality of equally spaced holes, a handle resiliently mounted on the slide and having structure to engage the holes to set and maintain furrow depth and adjustment structure for movably mounting the plate on the frame wherein when the disks and wheels cont

Abstract: An agricultural machine for use in dispensing liquid products through a pump driven sprayer is equipped with a hydraulic pump drive system including a rotary flow divider to intensify pumping pressures driving the sprayer pump while preventing unnecessary fluid flow bypassing operations.

Abstract: A probe mount assembly for a brake wear warning system comprising a probe electrically connected with a warning signal electric circuit and supported by and electrically insulated from one of friction plates by a nonrotatable bushing and a spacer disposed on the opposite sides of said one friction plate.

Abstract: An apparatus to be towed that includes frame supported, rotatably mounted furrow forming disks that are arranged to substantially contact each other at the approximate point of entry into the soil and diverge apart rearwardly and upwardly, a pair of rotatable gauge wheels having supports that individually and pivotally connect the wheels to the frame with each wheel being located generally adjacent an outer surface of a disk, a gauge wheel adjustment assembly, including an indicator, movably mounted in the frame for contact with the supports to achieve desired furrow depth, furrow depth indicating means having a zero indicating position and spaced indicia located adjacent the indicator and including adjustment structure to locate and fix the zero position opposite the indicator when the wheels and disks contact a level surface for accurate furrow depth control.

Abstract: A readily fabricated, compact toroidal or radial heat exchanger assembly (10) including fore and aft ring-like distributor tanks (11,12) and a generally circular core assembly (13) sandwiched therein between. The heat exchanger assembly (10) additionally includes a rotary blower (14), positioned radially inwardly of the core assembly (13) and distributor tanks (11,12), which is adapted to draw air axially and force the same radially outwardly through the core assembly (13) and around the distributor tanks (11,12). The ring-like distributor tanks (11,12) are provided with the interior and exterior fins (44,39) which function as heat transfer surfaces and thus the tanks (11,12), per se, are utilized as heat dissipating means along with the core assembly (13).

Abstract: Incorporation of a spacing member in an axle supported bolster pivot assembly provides wear compensation means and allows the utilization of interchangable inboard and outboard thrust bushings and wiper seals.

Abstract: A method for forming gear teeth of a high performance gear is accomplished by shaping the carburized gear tooth surface while the gear blank is held at a uniform temperature in the metastable austenitic condition above the start of the martensitic transformation temperature of the carburized case and then allowed to air cool so that the gear tooth surface will be transformed into very fine grain martensite.

Abstract: Clutch-clutch-brake steering unit having hydraulically actuated cylinders for controlling same to control rotation of a track-drive sprocket in a crawler tractor. Specifically, one of the clutch cylinders and a brake cylinder provided in the unit have an inlet-outlet port in common, and are so arranged on a spring-applied-brake, hydraulically-applied-clutch basis that a single pressure signal in the inlet-outlet port alternately operates the cylinders to apply the brake and release the one clutch, to apply the one clutch and release the brake or, by proper modulation, to partially engage either, i.e., slip the clutch or drag the brake to intermediate degrees as desired.

Abstract: The automatic alternating marker system is adapted for use with an agricultural planter assembly which has a plurality of planter units, which is adapted to be mechanically and hydraulically coupled to a tractor, and which has hydraulically actuated, first and second extendable markers, each mounted on one side of the planter assembly. Each marker is used to mark, respectively, the track that a tractor wheel should follow on a return planting sweep of the planter assembly for planting properly spaced adjacent rows after the planter assembly has made a first sweep to plant a plurality of rows. The system includes an electrical control circuit for causing extension of the first marker and retraction of the second marker upon the raising of the planters and the turning of the tractor 180.degree., and for causing extension of the second marker and retraction of the first marker upon the next raising of the planters and the next turning of the tractor 180.degree..

Abstract: A planter having a frame, a drive train supported from the frame and having a forward end adapted to be connected to a drive and the other end having drive structure rotatably supported on the frame, the frame also having a pair of laterally spaced horizontal flanges, stop structures extending through each flange, funnel structure mounted on said frame, a clutch shaft rotatably supported in the drive structure and having spaced jaws and structure for releasably connecting the clutch shaft in a driving and non-driving position to the drive structure, a hopper assembly having lower flanged surfaces for engaging the frame flanges and stops, a granular dispenser located in the lower portion of said hopper and having a dispenser shaft engageable with the clutch shaft jaws and fastening structure between the frame and hopper for releasably attaching the hopper to the planter.

Abstract: Copolyimide foams derived from a diester of 3,3',4,4'-benzophenonetetracarboxylic acid, an aromatic diamine, and a heterocyclic diamine. A molar concentration of the heterocyclic diamine approaching but not exceeding 0.42 is employed. This results in a flexible foam with a homogeneous cellular structure and a reduced compression set loss.

Abstract: A disc brake protective cover plate is mounted to a radial flange on a tractor loader wheel axle housing which is used for mounting multiple air-over-hydraulic, external drive caliper disc brake units thereto. The disc brake protective cover plate is in the form of a canister which has an open end slipping over the disc brake units into a hub of the tractor wheel. The cover plate protects feeder brake lines which are connected to a main disc brake unit and run externally alongside the radial flange to two servo disc brake units.

Abstract: A hydraulically actuated clutch booster utilizes a seat accumulator incorporated in a vehicle seat suspension circuit for a source of fluid pressure when the normal clutch booster fluid supply pump is not operating thereby providing hydraulic assist to operate the vehicle's clutch upon initial start up.

Abstract: A cap for a liquid containing vessel has redundant tang portions for engagement with closure ramps of a host tank access filler tube. Sealing engagement between the cap and the filler tube cap retention ramps is enhanced through the utilization of pitched guide surface inclines on one of the tang elements.

Abstract: A transmission neutral lever lock is used to lock a transmission direction control lever in a neutral position by swinging a latch into a camming detent connected on a bearing sleeve which supports the transmission direction control lever.

Abstract: A hydraulic system for a vehicle having an engine (10) governed to run within a predetermined speed range; the engine (10) arranged to drive a motive power train (11), a charge pump (14), a variable displacement pump (12) and a fixed displacement pump (15). The variable and fixed pumps (12 and 15) are arranged to supply hydraulic fluid pressure to a work circuit (26). A flow signal is created by passing the output from the charge pump (14) through an orifice (40), which signal is routed to a speed valve (46) which directs fluid to a control ram (78) to reduce the displacement of the pump (15) during a predetermined intermediate portion of said speed range.

Abstract: An apparatus to be towed that includes a frame supported, rotatably mounted, pair of furrow forming disks that are arranged to substantially contact each other at the approximate point of entry into the soil and diverge apart rearwardly and upwardly, a pair of rotatable gauge wheels having supports that individually and pivotally connect the wheels to the frame to regulate furrow depth, with each wheel being located generally adjacent an outer surface of a disk, and an equalizer assembly connecting the supports so that movement of a gauge wheel by an obstacle upward produces an equal movement of the other gauge wheel downward to produce a frame height and hence related furrow depth that is the average between the gauge wheel elevations.