Abstract: A bushing is provided for mounting a pivot arm that has both a threaded portion as well as one or two smooth cylindrical portions. The threaded portion enables the pivot arm to be a laterally adjusted by rotating the bushing while the smooth portion or portions provide a bearing surface or surfaces for the pivot arm loads. This removes the load from the threads, reducing wear of both the bushing and the pivot arm, thereby reducing maintenance cost.

Abstract: A bushing is provided for mounting a pivot arm that has both a threaded portion as well as one or two smooth cylindrical portions. The threaded portion enables the pivot arm to be a laterally adjusted by rotating the bushing while the smooth portion or portions provide a bearing surface or surfaces for the pivot arm loads. This removes the load from the threads, reducing wear of both the bushing and the pivot arm, thereby reducing maintenance cost.

Abstract: A disk support bracket assembly including a cross tube bracket and a disk shank support bracket pivotally connected to the cross tube bracket to allow the disk support bracket to pivot between a working position wherein the bracket bottoms against the cross tube bracket, and a storage position wherein the bracket is offset vertically from the cross tube to increase clearance. The shank support bracket is pivotally connected to the cross tube bracket near an upper forward corner of the cross tube and includes a relatively wide stop portion that bottoms against a mating stop portion at the front face of the tube bracket when the shank support bracket is in the working position. A pin is selectively insertable through apertures in the brackets adjacent the stop to lock the shank in an upright working position.

Abstract: An adjustable ridger for a cultivator includes an elongated ridger frame adapted to mount to the sweep member of the cultivator. The frame has a top bracket with an elongated slot extending therethrough. The slot has a width and a longitudinal axis. A plurality of setting holes in the top bracket are spaced apart along the longitudinal axis of the slot, each setting hole having a diameter greater than the width of the slot. A bottom bracket is spaced apart from the top bracket on the frame and has a guide hole therein. An elongated pull pin, having a stepped outer diameter with first and second diameter portions, is insertable through the slot in the top bracket and into the guide hole in the bottom bracket to act as a hinge pin. The second diameter portion is larger than the first diameter portion and yet smaller than the diameter of the setting holes. At least one wing pivotally mounts on the pull pin between the top and bottom brackets.

Abstract: A plurality of digging devices are mounted side by side on the same beam which is coupled to a clamping system of a vehicle or of a tank containing the liquid to be buried. Each device comprises, mounted on the same chassis, at least a disk for forming and opening a furrow on the ground surface. The liquid to be buried is injected into the opened furrow and then it is covered after the injection. The disk (15) has at least one convex face. The disk (15) is mounted to stand almost vertical with its axis of rotation, in an almost horizontal location which is perpendicular to the forward moving direction of the device. The clamping system is designed to exert a vertical downward force on the disk (15).

Abstract: A simple, light-weight C-shank standard is mounted on a bracket which is corner clamped to a rig cross tube on a row crop cultivator. A pin inserted through apertures in the bracket maintains the shank in a preselected field-working attitude. The pin can be removed to allow the shank to be pivoted upwardly for maintenance, sweep removal, or residue removal. The shank can be supported in the raised position by the pin when the cultivator configuration is changed for cultivation in lay-by conditions, or for operation in skip row or other special crop configurations. In one embodiment of the invention, the shank is edgebent and selective placement of the pin through one of a plurality of sets of mating holes in the bracket and the upper portion of the shank permits adjustment of the working position of the shank. A mounting slot at the lower end of the one embodiment of the shank provides pitch adjustment for the earthworking tool.

Abstract: An agricultural planting machine has a pair of adjacent furrow opening disks that form a V-shaped furrow as the machine advances and a pair of ground engaging gauge wheels respectively mounted for rotation adjacent the opposite sides of the opening disks. The gauge wheels are journaled on the lower ends of a pair of arms having their upper ends attached to the planter frame by mechanisms that permit easy lateral adjustment of the arms to optimize the close spacing between the gauge wheels and the opening disks. Each adjusting mechanisms includes an externally threaded bushing mounted on a shaft and engaging an internally threaded bore in the gauge wheel arm so that rotation of the bushing laterally shifts the arm and the gauge wheel mounted thereon. A locking device is operative between the bushing and the shaft to selectively lock the adjusting mechanism in the desired position.

Abstract: An agricultural plow implement includes a number of upright supports, with each support supporting a shallow tillage V-shaped sweep blade. A mounting plate is attached to the rear of each upright support and a specially adapted ripper shank, with an attached deep penetrating ripper blade, is attachable to each plate via a pair of bolts which extend through respective mounting bores in the plate. One of the bolts in each pair is a pivot bolt which provides a pivot point about which the ripper shank can swing. The other bolt is a shear pin which is designed to shear off should the ripper blade encounter an obstruction which might otherwise bend or break the ripper blade and/or the ripper shank. The ripper shank is adjustable vertically relative to the sweep blade and the ripper shank can also be pivoted 180 degrees between operative and non-operative positions when it is desired to do a sweep operation without soil ripping.

Abstract: The ridge preparation tool is adapted to be attached to a seed planter directly ahead of the trench-forming structure of the planter so as to skim off the crest of the ridge for the production of a clean, relatively narrow strip of prepared soil in which the trench-forming structure can operate effectively. The free-wheeling skimming disc of the tool is held at an oblique angle to the centerline of the planter and may be adjusted to increase or decrease the extent of side throw of the skimmed off materials by selectively raising or lowering an outwardly bent mounting arm that holds disc at its oblique angle. Raising or lowering the angled mounting arm causes the disc to cock inwardly or outwardly while maintaining the same oblique angle. The throw-adjusted disc can be returned to the same skimming depth by appropriate manipulation of a vertical adjustment unit associated with the tool.

Abstract: The present invention is directed to an adjustable attachment for mounting a tool to a tow bar. A shank having first and second spaced parts has a bracket for attaching the first shank part to a tow bar in an operative position thereon so that the shank may follow the movement of a drawing vehicle. A structure is provided for attaching a tool to the second shank part. The second shank part, with a tool attached thereto, is spaced below the first shank part with the tool in its operative position. A pivotal joint joins the first and second shank parts. At least one threaded bolt having a threaded shaft with two ends and a head at one end and a free end at the other end threadably engages a threaded receptacle. The threaded receptacle is positioned such that the free end of the shaft prevents the pivoting of the second shank part in at least one of a clockwise or counter-clockwise direction.

Abstract: Agricultural tilling implements are described. In some embodiments the implements are adapted for deep tilling of soil between growing row crops, in which embodiments a horizontal shield member is detachably secured to a depending shank. The front edge of the shield is sloped upwardly. The shield prvents soil from being thrown upwardly and onto the top of growing row crops during tilling between the rows. The shield also guides loosened soil around the base of growing crops in the rows. In another embodiment the implement includes downwardly depending plate members beneath the shield to urge soil outwardly from the shank to the row crops to form a hill in each row without covering the crops. In another embodiment a V-shaped ditcher is disposed beneath the shield for forming a trench or ditch between adjacent rows of crops. In yet another embodiment a novel tilling sweep is described.

Abstract: Apparatus for removing upstanding plant stalks from the ground and for mulching the stalks. The apparatus includes simplified disk mechanisms which can be adapted both to cut and mulch plant stalks.

Abstract: An improved plow for use in laying drain-tile. The plow has a narrow body with an elongated upright portion and a triangular portion at the bottom, front end of the upright portion. Means on the body guide a drain-tile from an inlet high in the upright portion to an outlet at the bottom, rear of the upright portion. The plow has a plow blade detachably and adjustably fixed to the leading edge of the triangular portion. A near shoe and a plow knife may also be detachably fixed to the plow. The plow knife includes means for moving earth in a manner that it fills in the drain-tile trench. Linkage means are provided for connecting the plow to a tractor in a manner that it can be easily maneouvered. The linkage means includes an adjustable link that can change the attitude of the plow. The plow may also comprise means for laying a cover strip on top of the drain-tile as it is being laid.

Abstract: An earth-working tool has mounting means at one end for attachment of the tool to the frame of an agricultural implement, a tool blade down the forward edge of the tool and attachment means at the other end of the tool for securing a tool point. The mounting means is so arranged that the tool may be attached to the frame in such a manner that the tool blade will form a rearward angle, from the top end to the other end, in relation to a line normal to the direction of forward movement which the tool will take during use, with the result that soil tilled by the tool point will be prevented from rising to the surface by the action of the rearwardly directed tool blade. Ideally the tool may be mounted so that the tool blade will be forwardly directed, either by reversing the tool or by providing alternative mounting holes for mounting the tool to an agricultural implement.