Abstract: A dual disc cultivator cutaway (10) is disclosed including a frame (30) pivotally mounted to a cultivator tool bar (14) through a bar mount (22). A spindle (38) is pivotally mounted to the opposite end of the frame (30) and slideably mounts first and second arms (40) which in turn rotatably mount the disc blades (44). An adjustment slide (46) is removably pivotally mounted to the upper arm (26) of the cultivator gang assembly and is adjustably, slideably fixed on a bar (45) extending from the spindle (38). Thus, movement of the frame (30) is in a fixed positional relationship with the gang assembly in the cutting and transport positions and pivots with the gang assembly relative to the tool bar (14). When the slide (46) is not attached to the upper arm (26), the frame (30) can be held in an inoperative position relative to the tool bar (14) by a latch (54) pivotally mounted to the tool bar ( 14) through the bar mount (22) which hooks on a pin (56) attached to the frame (30).

Abstract: A partial width seeding attachment includes electronically controlled solenoids which activate hydraulic flow control valves connected to the hydraulic cylinders on respective implement sections. Switches in the tractor cab control the rockshaft of one or more selected sections independently of the other sections to raise the openers on the selected section or sections from contact with the soil. An electronically activated flow reversing valve is connected between the source of hydraulic fluid under pressure and the lift cylinder for each of the sections. Activation of a selected valve after the selective control valve on the tractor is moved to the normal field working position pressurizes the side of the cylinder that raises the openers on the section. The remaining cylinders operate normally to maintain preselected down pressure on the other openers. A master raise switch provides implement lift independent of the position of the individual rockshaft control switches.

Abstract: An earth compacting apparatus for mounting at one end of an earth working vehicle comprises a plurality of separate compaction units and a pivotal linkage for pivotally mounting the compaction units side by side on a vehicle. An actuator assembly operates on the linkage for independently raising and lowering each compaction unit between a raised, inoperative position and a lowered position in contact with the ground. The actuator assembly also provides downward pressure on each compaction unit in the lowered position.

Abstract: On a tractor having a main frame channel that includes an overhead wall and depending side walls and a lift arm mounted on a rockshaft for raising and lowering a tractor-supported implement, a power means for rocking the rockshaft with a lost motion connection between the power means and the rockshaft, a vertical member extending through the overhead wall and freely swivable therein and having a manual controllable portion above the transverse wall structure and an axially hollow section beneath the wall structure, a fixed pipe-like member in axial alignment with the swivel member and having an internal threaded portion, a stud threaded into the pipe-like member and having a head seated in and connected to the hollow section of the swivel member to swivel therewith, and a vertically disposed rod having an upper end portion extending to and engaging the lower end of the stud and a lower end connected to the rockshaft in radial offset relation to its axis.