Abstract: A liquid fuel tank assembly which has upper and lower body shells connected together along continuous bent flanges, and has a recessed and shielded fill neck and cap locking cam integral with the upper body shell and an extruded sump portion integral with the lower body shell.

Abstract: An improvement in an articulated tractor which has front and rear sections pivotally connected along a vertical axis of articulation. Each of the sections is supported by a pair of ground engaging wheels that are drivingly connected to a differential input by a differential and an axle. The improvement includes an engine mounted on the front section forward of the front section differential with the engine's output element disposed longitudinally of the tractor. The engine's output element extends rearwardly toward the front section differential and is vertically positioned in close proximity to the top of the front section differential. The improvement also includes a power train connected to the engine's output element which provides for the transmittal of engine power rearwardly from the engine output element along a first path over the front section differential, to and through the axis of articulation.

Abstract: An implement having a rotary flow divider controlling fluid to and from at least two independent hydraulic rams for raising and lowering the implement in a level manner. A counter monitors the revolutions of the flow divider and actuates an electric circuit which controls solenoid valves to stop the implement at the proper height. A cab mounted adjustable count selector is provided to adjust the desired height of the implement.

Abstract: A check valve assembly regulating the fluid flow between the fluid reservoir and filter cartridge chamber is actuated by a valve actuating member movable through and controllable exteriorly of a filter system housing without compromising the housing leak integrity. The actuating member may perform another function of a drain plug for the filter chamber, so that upon removal of the member the check valve assembly will be closed and the chamber fluid drained through a drain plug opening without loss of the reservoir fluid.

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 laminated composite structure having a rigid honeycomb core and upper and lower fabric skin layers is provided with a reservoir layer of randomly oriented fibers, such as chopped glass or chopped mat, between the core and the top skin to retain the resin during lay-up so that the top skin may be laid on dry and become impregnated upon compression of the laminate. A reservoir layer may also be used between the core and the bottom skin to improve the bond therebetween.

Abstract: A circuit for controlling pitch and tilt of a dozer blade in which two cylinders are connected between the dozer blade and the dozer push arms. One cylinder only is extended and retracted to achieve tilt, and both cylinders are operated in unison to achieve pitch with divider valves assuring that equal volumes of hydraulic fluid reach each cylinder and are expelled from each cylinder. Extension and retraction is selectively determined by a directional control valve, while a selector valve determines whether both cylinders or only one cylinder is connected with the directional control valve.

Abstract: A vibrating ripper having quadrilateral linkage. The linkage, equipped with a remote hydraulic control therefor for making running adjustments as afforded by a depth actuator cylinder during ripping and possibly, but not necessarily, as afforded by a pitch actuator cylinder which also can be provided, has a raised-carry position and a lowered-rip position in which it has a vibratory rocking action, and defines a pitch axis fixed in the linkage and shifting therewith during depth changes. Strategic upper level placement of an elastic strut connection which is provided, and diagonal placement of the lift or depth cylinder connection to the draft frame or to the ripper beam and shank assembly, locate the pitch axis at the node of the rocking assembly as it vibrates.

Abstract: A valve mounting plate is positioned over an access port in the front portion of the chassis of a large earthworking vehicle. A large hydraulic valve assembly is attached to the inboard surface of the valve mounting plate so that the valve resides in an accessible interior frame member compartment.

Abstract: A structure for the lower hinge and boom cylinder pivot of an articulated loader having a tube extending across and secured to the front frame of the loader with stub shafts secured in each end of the tube and protruding therefrom to act as pivotal mountings for the boom cylinders. The lower hinge has upper and lower plates secured to the cross tube to form a box section to provide strength and rigidity.

Abstract: In an automatic tailgate of a dump truck a continuous single cable extends from a left side gate lever arm to a right side gate lever arm after passing below the dump body of the truck and being movably secured to the truck frame. When the dump body is in a dumping mode the continuous single cable will allow equalization of tailgate lifting forces.

Abstract: A multi-segment farm implement flexible tool bar or frame is provided with a hydraulic system including a rotary flow divider for raising and lowering each segment of the sectional frame in synchronous movement with the other sections. A mechanical linkage associated with a ground wheel positioning cylinder also activates the hydraulic fluid control system limiting the downward movement of the implement mounted to the sectional frame on its supporting gear.

Abstract: A retainer clip for securing a first electrical wire terminal lug to an electrical terminal contact post of a junction block. The retainer clip may have one or more snap tabs, each of which is snapped around a respective post. Finger tip or tool gripping holes may be provided in the body in the case of a ganged plurality of snap tabs, or side cutouts may be provided in the case of one snap tab which facilitate easy removal of the snap tab from the respective terminal contact post after a second terminal lug is mounted on the post on top of the snap tab retained first terminal lug and a securing nut is threaded onto the post for mechanically connecting the first and second electrical wire terminal lugs to the same post.

Abstract: A disc brake pad retractor includes a resistance member carried on a rod positioned between a pair of brake pads. The resistance member will be moved laterally as the pads wear. A spring loaded housing is associated with the resistance member and will serve to urge a brake pad away from the rotor when the disc brake is disengaged.

Abstract: A dual implement hitch for connection between a tractor and the implements for moving the implements to preferably an echelon position for field operation and to a tandem position for transport, while maintaining the tractor hitch pin on the line of pull of the implements. The hitch includes a hitch tongue pivotally connected to the tractor and to a support attached to the first implement. A curved beam is pivotally connected to the support forward of the tongue connection thereto and extends rearwardly over the first implement in the transport position to a caster wheel support and a pivotal connection to the second implement. Link means are pivotally connected to the hitch tongue and curved beam rearward of the pivotal connection of the curved beam to the support. A single hydraulic cylinder connected to the support and tongue provides the power for the movement of both implements to the noted positions from the tractor seat.

Abstract: A gear-shift mechanism for a motor vehicle having a change-speed transmission equipped with a speed-range selection device. The mechanism has a multi-speed gear-shift transmission unit and a range-shift transmission unit. The mechanism incorporates a shift control level whose movement can be transferred via a gear-selector passage and via several gear-shift passages to a gear-shaft which is supported in a rotating manner and can be axially moved inside a housing. The shaft loosely supports gear shifting levers which can be engaged on the shaft and locked in position in a non-revolving manner after an axial movement of the gear-shift shaft caused by the respective gear-selecting operations of the shift-control lever.

Abstract: A drive system is provided for driving a rotatable seed drum of a seed planter which includes a fan for supplying air under pressure to the drum. The drum drive system includes an alternator which is mechanically driven, preferably from a drive for the planter fan, and which has output terminals connected to a motor mechanically connected to the seed drum. A ground speed signal generator is mechanically connected to a ground-engaging wheel to develop a signal which has an amplitude proportional to ground speed and which is applied through an adjustable resistance to a field winding of the alternator after passing through a control box. A drum speed signal generator arrangement is provided for developing a drum speed signal having an amplitude inversely proportional to the speed of rotation of the seed drum. This signal is also directed to the control box. Preferably, the signal generators include reluctance generator devices.

Abstract: A mulcher that includes a longitudinal member having one end adapted for connection to a mobile power source, a beam member extending transversely of the connecting member and connected thereto and also having a downwardly opening channel configuration, a generally curved bar located in the channel configuration, a mounting structure for connecting the curved bar to the beam member and a spring tooth structure having a pair of spaced axially aligned coil portions and an intervening connector portion pivotally mounted on the curved bar with a tooth portion extending downwardly from the endmost convolutions of the coil portions. The connector portion engaging the mounting structure when the mulcher is towed and the tooth portions engage the soil with the coil portions winding up on the curved bar. The connector portion moving away from the mounting structure until the tooth portions contact the channel when the mulcher is backed up with the tooth portions in the soil.

Abstract: A basket lift apparatus for a cotton harvester including a pair of linear hydraulic motors having floating axially unrestrained housings is provided with a variable length guide tube assembly pivotally connected between the respective cylinder housings to prevent rotation thereof.

Abstract: A hydraulic circuit for synchronous lift of an implement having a center frame and flexibly connected left and right wing frames, each frame having an independent wheel assembly for raising and lowering the associated frame. A rotary flow divider is provided in a parallel connection of hydraulic rams to actuate the wheel assemblies. The flow divider has a section sized to provide the necessary flow to each ram so that all frames are raised and lowered in unison.