Abstract: A hose end coupling unit which has an expandable interlocking snap ring interconnecting a plug member inside a socket member. The interlocking snap ring has a countersunk or funnel-shaped mounting hole, which fits over a frusto-conical cam surface on the plug member and is expanded thereby, as the plug member is inserted into the socket member, into an internal groove within the socket, and is held in an expanded state confined in the groove, after passing over the cam surface, on a cylindrical shoulder portion on the plug member. A spacer snap ring nested in an external groove in the plug member, outside the socket member, prevents the plug member from being inserted deeper into the socket member once the interlocking snap ring is seated on the shoulder portion. An O-ring seal at the entrance of the socket member seals the interconnected plug and socket members.

Abstract: A corn snapping header frame having transverse beam assemblies pivotally mounted at each end of a transverse main frame, the transverse beams being forwardly offset from the frame and having corn snapping units mounted thereon.

Abstract: A device that includes a bracket, a hydraulic cylinder having an end pivotally mounted on an axis of the bracket, a first link pivotally mounted on the bracket on one side of the cylinder and pivotally connected to the extension end of the cylinder, a support structure pivotally mounted on the axis and having a plurality of earth working tools, and a second link pivotally mounted on the support structure on the other side of the cylinder and pivotally connected to the extension end of the cylinder. The device, including the bracket, is particularly arranged and constructed to be mounted on a multi-hitch structure for a plurality of grain drills to remove a tractor track prior to planting. The cylinder rotates the device from a working position to a transport position that is substantially in excess of 90.degree. therefrom. Tool depth adjustment and levelling means are also provided.

Abstract: A grouser retainer that is positioned between a belt and a tire carcass provides an anchor for attaching one outboard end of a grouser to a tracked tire assembly. A pair of grouser retainers, one at each edge of the track or belt, are used to anchor each grouser as each grouser retainer is less than the full width of the tire tread.

Abstract: A mower conditioner which is attached to its mobile carrying frame by an upper link and two laterally spaced lower swing links, is provided with a lateral floatation lockout device in the form of a torque transmitting bar selectively rigidly attached at each end to the lower swing links coaxially with the pivotal connection of the latter to the laterally elongated crop harvesting header.

Abstract: Device for stabilizing the lower links of a three-point hitch conventionally used on farm tractors having a sway bar rotatable connected to the tractor axle by a first pin with its axis paralled to the longitudinal axis of the axle. The other end of the sway bar is connected to one of the lower links by a second pin encased in a rubber metal element and oriented with its axis transverse to the first pin axis.

Abstract: A control system is provided for a plow including forward and rearward hingedly connected frame sections each carrying a plurality of plow bottoms and forward, intermediate and rearward linkage assemblies each including a hydraulic actuating cylinder, supporting the forward end of the forward frame section, the junction between the frame sections and the rearward end of the rearward section. The control system includes electrical circuitry which controls solenoid-actuated valves of a hydraulic system with separate portions of the circuitry being operable for controlling the respective linkage assemblies but with an operation such that only one hydraulic cylinder is operable at any one time to minimize load requirements. In a raising operation, the forward and intermediate linkage assemblies are sequentially operated. Another feature is a draft control arrangement which includes a dither circuit operative to alternately adjust the forward and intermediate linkage assemblies.

Abstract: A self-propelled axial flow combine having a crop harvesting header for supplying crop material to a longitudinally oriented rotor power-rotated within a generally cylindrical casing. The casing includes a grate through which crop material is impelled at high speed by the rotor. The combine includes a grain cleaning system having a chaffer sieve reciprocably mounted to receive crop material from the grate for sifting the material as a part of the cleaning process. Crop sensors are mounted on the chaffer sieve to sense material flow from the grate. In addition, crop sensors are mounted at the rear of the chaffer sieve for sensing crop losses from the sieve.

Abstract: A crop harvesting header for a self-propelled combine. The header includes a "floating" flexible cutterbar movable vertically relative to the header frame to cut a standing crop (soybeans, for example) close to the ground to minimize crop losses. The cutterbar is connected to a plurality of runner structures pivotally mounted on the header frame. A spring system is operative on the runner structures to resiliently counterbalance the cutterbar. Elongated skids are connected between adjacent pairs of runners to effectively extend along the length of the header. The skids are mounted to permit individual movement of the runners relative to each other as the cutterbar flexes over uneven ground across the harvesting path. The skids are selectively shiftable to vary the cutting height of the cutterbar.The combine includes a hydraulic system for raising and lowering the header. An automatic system raises and lowers the header in response to sensing the position of the cutterbar relative to the header.

Abstract: A horizontally adjustable seat support may be rotated 180.degree. to lock in either a forward facing position or a rearward facing position. A latching mechanism restricts frame movement from horizontal or pivotable movement but may be partially displaced for free horizontal adjustment without releasing the pivotable lock.Horizontal seat tracks may engage the lower or alternatively the upper portions of rollers carried between the seat tracks, depending on the lateral position of the seat frame.

Abstract: A transmission disconnect control capable of placing a transmission in a neutral condition in response to application either of a pressure-applied service brake system or of a spring-apply parking brake system including a pilot operated disconnect valve which receives a pilot signal from either a parking brake signal valve or from the service brake valve, with a shuttle valve movable to select a signal from either the service brake valve or the parking brake signal valve.

Abstract: An upper link storage device having a post secured to the cross bar of an inverted U-shaped bracket. A sleeve slidably retained on the upper link engages the post to positively arrest the upper link.

Abstract: An elastomeric bushing encircles a piston of a mechanically operated disc brake system forming a seal between the piston and its host cylindrical bore. The elastomeric bushing provides for a small amount of lateral piston travel and will provide a retraction means to return the brake piston to a position of repose.

Abstract: Power steering mechanism for a vehicle having a pair of front driving wheels and a rear steerable guide wheel assembly including a vertical pivot shaft pivoted on the vehicle frame, the steering mechanism including an actuating arm attached to the pivot shaft and a double acting hydraulic cylinder with a double ended piston rod, the body of the cylinder being pivotally mounted on the actuating arm and one end of the piston rod being pivotally attached to the vehicle frame.

Abstract: A system is provided for monitoring and controlling the level of a working element of an agricultural implement including a digital comparator which compares stored digital signals with digital signals corresponding to the actual position of the working element. A secondary valve is controllable from the digital comparator to limit lowering movement. The actual position digital signals are developed by counters which count clock pulses during a pulse developed by a transducer circuit and having a duration corresponding to the vertical position of the working element. Such actual position digital signals are applied to latching circuits from which a signal may be applied upon operation of a memory reset button to memory latch circuits operative to provide the stored signals and such signals may also be applied to display latching circuits.

Abstract: A hay conditioner is provided with a crop deflecting baffle having an operative position for deflecting crops for deposit in a swath. Rearwardly converging deflector vanes are mounted on the baffle, preferably about halfway respectively between the transverse edges of the baffle and the center of the crop stream. Preferably, the angle of convergence of the vanes is less than that of the fixed side deflectors of the preferred windrowing apparatus.

Abstract: A multi-functioning hydraulic transmission control circuit including interacting valve mechanism parts which, in response to a shift being called for in a clutch-cylinder-controlled multi-speed transmission, inaugurate a fill pressure flow to the clutch cylinders concerned, prior to the subsequent fluid pressure rise effected therein; thereafter, upon completion of the fill, the parts modulate pressure rise of the hydraulic clutch fluid from and at approximately actual clutch fill pressure up to, and remaining at, the final pressure of engagement.

Abstract: A primary face type seal is maintained in face to face engagement by secondary elastomer seals. A multi-part retainer encircles the primary and secondary seals to provide a unitizing housing for permanently locating the enclosed seals in appropriate alignment.