Abstract: An offset arm for a tractor is provided. The offset arm includes a front hitch, a rear hitch, and a rigid connecting structure coupling the front hitch to the rear hitch. The offset arm also includes a front pivot point pivotally connecting the connecting structure to the front hitch about a vertical pivot axis and a rear pivot point pivotally connecting the connecting structure to the rear hitch about a vertical pivot axis. The offset arm also includes a rear pivot lock that selectively locks the rear pivot point to lock the orientation of the rear hitch relative to the connecting structure. The rear pivot lock can selectively lock the rear hitch in any of multiple orientations.

Abstract: The invention pertains to apparatus for use with a row planter unit. The apparatus includes an elongated and laterally extending bar operatively secured to a row planter unit for pulling same in a forward direction of travel. The apparatus includes a frame carried by the elongated and laterally extending bar and a support arm pivotally mounted thereon. At least one rotatable trash wheel is carried on the support arm. The row planter unit is pivotally supported on the frame rearwardly of the trash wheel in the direction of travel. Articulated members operatively connect the support arm to the row planter unit for applying a pull force to the rear of the support arm for controlling the depth of penetration of the trash wheel into the ground. The articulated members may comprise various alternatives including a link chain, a pair of links pivoted to one another in an offset relationship, or a link and a turnbuckle arrangement.

Abstract: A harrow is provided having an elongate tool bar mounted on wheels for movement in a forward direction perpendicular to the tool bar. A plurality of harrow elements are mounted on the tool bar to extend generally rearward therefrom. A pair of support arms are pivotally mounted on the tool bar at a first end and mount each harrow element on a second end towards a rearward end of the harrow element. A hanger is connected between the support arms and the harrow element towards a forward end of the harrow element for suspending the harrow element therefrom. A plurality of tines are mounted on the harrow element such that the angle of the tines relative to the ground may be adjusted. A coupling connects between the hanger and the tines such that the height of the front end of the harrow frame is adjusted in response to tine angle adjustment.

Abstract: A hitch attaches to a lawn tractor and draws two lawn mowers therebehind. The hitch includes a draw bar solidly mounted to the tractor, and a link for each towed mower, which mowers each include a bracket to the deck thereof. The links include plumbing tees perpendicularly arranged, so that universal joints are formed between the draw bar and the mowers. A third tee is provided at each bracket so that each mower may be individually tilted, as for enabling access to the underside while still ganged to the hitch. The draw bar, links, and third tee are made from readily available plumbing components. The resultant hitch is thus fabricated from readily available components, is durable, uncomplicated, and has wide flexibility in allowing for various attitudes of the mowers. This enables individual mowers to follow the contour of uneven terrain, turn in tight quarters while being towed, and to be temporarily tilted for access to the cutting blade and oil drain cock without requiring disassembly from the hitch.

Abstract: A no-till rotary hoe includes trash cutters for cutting field trash carried by the earthworking implements. The rotary hoe also has a walking beam mounted on a support arm with rotary hoe wheels mounted on forward and rear ends of the walking beam. The walking beam is connected to the arm about a pivot positioned to reduce the tendency of the walking beam to pivot excessively in use. A spring is used to aid in maintaining the walking beam properly oriented.

Abstract: A drawbar assembly includes a self-locking bushing which is supported from the drawbar mounting bracket by a conventional nut and bolt fastener. Each end of the bushing includes radial line projections which bite into the mounting bracket and into a washer interposed between the nut and the bushing when the nut is threaded onto the bolt. By capturing both bushing ends, the bushing cannot rotate to loosen the nut or wear against the mounting bracket and washer. The bushing is formed as a single component with the radial line projections by a powdered metal process and hardened to provide wear resistance. Dissimilar metals in the bushing and the drawbar at the pivotal connection reduce wear.

Abstract: Closely spaced cultivating tools are mounted along a tool bar and each tool may be locked in a raised position relative to the ground or may be lowered into floating engagement with the ground during use of the implement. A small tool bar is mounted parallel to a larger tool bar and the cultivating tools are slidably clamped on the small tool bar. Improved mounting structure allows each cultivating tool to be mounted on the small tool bar without having to slide each cultivating tool onto or off of the tool bar from the ends of the tool bar and without having to disassemble the mounting structure. The tool bar assembly includes row indicia for indicating where the tools are to be located along the tool bar and which tools should engage the ground and which tools should be raised away from the ground for various cultivating operations on row crops. A tool angling mechanism allows selective adjustment of the angle to the line of draft of each tool without the use of wrenches or other hand tools.

Abstract: A set of four rotary hoes are evenly spaced apart laterally so that the distance between the tracks is two inches and the distance between the outside hoes is six inches. The assembly is pivoted about the center to ride over uneven ground. The front and back hoe are removable so that the other two hoes, which are widest apart, may be operated as a rotating shield. The mounting is attached to the tool bar of a tractor and spring biased downward.

Abstract: For use with a farm implement frame, a drag harrow pressure adjustment device which includes bracket members designed to pivotally mount implement frame arms to an implement frame beam. The frame arms have mounted thereto harrow sections containing harrow teeth for ground working. A spring member, in cooperation with bracket members, introduces variable degrees of pressure to the frame arms resulting in the capability to regulate the ultimate downward pressure exerted by the harrow teeth on the underlying terrain. When desired, the frame arms are raised and maintained, through an over-center arrangement, at elevations disengaging the harrow teeth from terrain contact.

Abstract: A cultivator has a frame normally carried on the back of a tractor and pulled in a predetermined direction along the ground. A plurality of tines extend downwardly from this cultivator and penetrate the ground. Each tine is pivotal about a respective axis perpendicular to the direction of travel and parallel to the ground and is biased into a normal central position by means of a respective hydraulic actuator. The cylinders of all of the hydraulic actuators are connected together in a closed network so that if one tine is forced backwardly the other tines will be urged correspondingly forwardly and vice versa. In addition each such tine, which also may be mounted on a parallelogrammatic linkage, may carry a V-shaped backwardly extending blade increasing the mixing and aeration effect of the cultivator.

Abstract: Cultivator apparatus comprises an elongate main frame and a plurality of cultivator sub-assemblies spaced along the length of the main frame and each including a sub-assembly frame. Respective linking means connect each of the sub-assembly frames to the main frame for independent floating movement of the sub-assembly frame with respect to the main frame while preventing tilting of the sub-assembly frame with respect to the main frame.

Abstract: A cultivator having a rigid frame adapted to be connected to a tractor, at least one pair of laterally spaced-apart plow elements for breaking up the surface of the ground independently connected to the frame by a pair of linkages, and a pair of laterally spaced-apart rolling disk shield assemblies suspended from the lost motion linkages. The disk shield assemblies are comprised of first and second supporting arms rigidly connected respectively to the lost motion linkages and which extend outwardly away from the plow elements, a lever rotatably connected to and depending from each of the supporting arms, and a disk shield rotatably mounted on each of the levers and positioned generally between and adjacent the plow elements.

Abstract: An attachment for an earth working apparatus having a mobile frame with central and wing sections, each with forward and rear frame members and a plurality of earth working members thereon. The attachment includes a plurality of reach arms for each section and having a forward end portion thereof connected to the forward and rear frame members of the respective frame section. A vertically adjustable hanger unit is swingably mounted on each reach arm and has a tool bar carrying support member swingably mounted thereon. Each hanger unit is constructed so as to permit an elongated, adjustable drag tension spring to have unusually great length such as by allowing a lower end portion to be connected to the respective support member rearwardly of the hanger unit and an upper end portion to be connected to the respective reach arm forwardly of the hanger unit.

Abstract: A cultivator frame assembly particularly adapted for cultivation of bed-planted crops comprises a parallelogram linkage frame adapted to be attached to a conventional tool bar and a bed cultivator frame carried by the parallelogram linkage frame. The bed cultivator frame provides a series of longitudinally spaced tool bars for mounting the gauge wheel and such cultivating tools as will properly cultivate the multiple crop rows of each bed. The two frames are readily detached so that various forms of the bed cultivator frame may be employed with the common parallelogram linkage frame, as need arises.

Abstract: A row-crop cultivator for tilling the soil between adjacent rows of crops is connected to a prime mover. The cultivator includes a drawbar connected to the prime mover and a plurality of laterally adjacent cultivating gang assemblies for tilling the soil between adjacent crop rows, each is connected to the drawbar so that it travels on the ground under its own weight and moves independently in a vertical direction relative to an adjacent gang assembly.

Abstract: A depth control for grain drills, planters or the like utilizing a press wheel which can be adjusted to control the depth of each individual furrow opener to insure uniform depth of planting across the width of wide machines presently in use.

Abstract: An agricultural seed-drill comprises a frame and pivotally mounted drag bar carrying a coulter disc. An ovoid rubber spring is located between the drag bar and a member, such as a moving beam or bell crank lever, associated with the frame to apply pressure to the coulter, or to enable the coulter to be raised so that the disc does not contact the soil. In order to relieve strain on the spring member when the coulter is raised, the said spring member and associated threaded studs, used to attach the spring member to the drag arm and the member associated with the frame, contain a continuous longitudinal axial passageway in which is located a cable the end portions of which extend through the studs and are terminated by nipples spaced apart from the end of the studs. By this means the weight of the drag arm is taken by the cable when the drag arm is in the raised position.

Abstract: A support is connectable with an agricultural machine, and a plurality of agricultural tools is provided which are mounted by mounting elements on the support so that they can be adjusted relative to the support. A single arresting element is provided which arrests all of the tools in their respective positions. The tools have mounting portions extending into a passage in the support and either the passage itself or an auxiliary element in the passage has a wedge face to engage the tool mounting portions.

Abstract: A rotary hoe implement, having hoe support arms independent of adjacent hoe support arms, and a selectively adjustable means for varying the downward pressure exerted by the leaf spring biasing means acting on each support arm.