Abstract: An agricultural crop combine has a header with skid plates and low friction plastic skid shoes mounted on the skid plates. Each skid shoe has a thickness that progressively and uniformly increases from the front end to the rear end of the shoe. The skid plates are made with a sinter molding process that subjects powder plastic in a mold to heat and pressure to cause the plastic to become a coherent mass comprising the complete skid shoe.

Abstract: An earthworking wheel for closing a seed trench made by a planter has an annular low friction body having circumferentially spaced outwardly directed teeth. A pair of hubs clamped onto opposite sides of the body accommodate a bearing for rotatably supporting the wheel on an axle.

Abstract: The disclosed invention is an improved closing wheel attachment mechanism which has longer wear life than that of the typical attachment mechanism. The closing wheel arm on an agricultural planter has installed thereon an improved grease bushing assembly which has increased wear surface and the capability to utilize a grease on the surface. The combination of increased wear surface and greasing will greatly increase the operational life of the planter. Also included in the invention is the process and fixturing to incorporate the improved configuration on to an existing planter closing wheel structure. Included in this attachment mechanism is a welding jig which assures proper alignment of the improved bushing assembly.

Abstract: The disclosed invention is an improved closing wheel attachment mechanism which has longer wear life than that of the typical attachment mechanism. The closing wheel arm on an agricultural planter has installed thereon an improved grease bushing assembly which has increased wear surface and the capability to utilize a grease on the surface. The combination of increased wear surface and greasing will greatly increase the operational life of the planter. Also included in the invention is the process and fixturing to incorporate the improved configuration on to an existing planter closing wheel structure. Included in this attachment mechanism is a welding jig which assures proper alignment of the improved bushing assembly.

Abstract: A vehicle for transporting a grain combine header and a row crop header of an agricultural harvesting implement having bolsters connected to wheels and a longitudinal tube extended between and connected to the bolsters. A longitudinal head rest extends between and is located above the bolsters. Swing arm assemblies mounted on the bolsters support the head rest for movement from an up position to a down position. Holders mounted on the tube are adapted to engage a portion of the header when the header is located on the head rest.

Abstract: A slide lid for a seed box of a row crop planter has a top wall joined to downwardly directed side and end flanges which cooperate with outwardly directed lips on the box to retain the slide lid on the box and allow the slide lid to be moved generally horizontally to open and closed positions.

Abstract: A crop sprayer cab has a step assembly facilitating ingress and egress of the operator into and out of the cab. The step assembly has floor and step sections operable for movement between an up, closed position and a down, step position relative to the floor of the cab. Links connected to the cab floor and the floor section limit downward movement of the step section and allow the step assembly to be moved to a closed position. A hand operated lever is operable to pivot the step assembly to the up, closed position.