Abstract: Conventionally, a cultivator and a packer are required as well as a tine harrow in most grain farming operations. The present device consists of a small sweep of approximately two inches width that can be detachably secured to the tines of a tine harrow and adjusted vertically to cultivate the surface of the soil or at any depth up to the maximum depth penetrated by the harrow tines. Alternatively, the sweeps can be reversed on the tines and used as packers. The device may be used for relatively light weeding operations, to facilitate the proper incorporation of herbicides and to provide a level and prepared seed bed.

Abstract: A sod harvester in which sod is cut, conveyed upwardly, and then travels downwardly over a floppy conveyor and falls into a roll forming enclosure formed by a bottom conveyor and a vertical conveyor. The floppy conveyor swings downwardly at the start of roll forming, to reduce the free fall of the sod, and swings upwardly as the roll grows. When the roll is formed, the bottom conveyor is unlatched and tilts downwardly to discharge the roll, at the same time pulling into cocked position a core tube injector arm. When the roll discharges, the bottom conveyor snaps upwardly, releasing the core tube injector arm which injects a fresh core tube into the roll forming enclosure. The sod is rolled with its grass side outwardly to facilitate laying and to protect the grass roots. A tray on a cart at the end of the harvester receives the discharged roll and can convey it to either side of the cart.

Abstract: Reversing method, particularly for semi-reversible ploughs, where the reversing mechanism includes hydraulic reversing cylinders (10, 11). The reversing mechanism, or device (5) to be reversed, includes a lifting arm (8) which at its one end is rotatably supported at a point (9) which the reversing mechanism turns about, and which at its other end is fastened to the device (5) to be reversed. The reversing cylinders (10, 11) have approximately the same volume and approximately the same length of stroke and are affixed symmetrically to the lifting arm (8). The piston rods of the reversing cylinders (10, 11) are rotatably attached (15, 19) with one end of a pressure arm (17, 18) whose other end is rotatably fixed to the point (9) about which the reversing mechanism rotates.

Abstract: A roll control structure adapted to automatically control an earth working machine, such as a rotary cultivator so that the machine becomes horizontal in the lateral direction irrespective of the inclination of the ground surface, i.e., in such a manner that the machine assumes a posture preset by the operator. The roll control structure is characterized in that it is provided with left and right stroke sensors for detecting strokes, i.e. a distance between arbitrary points on the left and right lift arms in an earth working implement connecting link mechanism and those on the left and right lower links in the same mechanism to determine an angle of inclination in the lateral direction of the implement with respect to a tractor on the basis of a difference between the detected strokes.

Abstract: The problem of having dirt and debris stick to the shank of a subsoil plow is solved by providing a non-stick cover body that attaches to a lower portion of the shank and is sized and configured and of a material to which dirt and debris will not adhere. Fasteners in the form of staples insert into holes in laterally spaced tail edge portions is provided. The body is made of a sheet of ultra high molecular weight-polyethylene that is sized, and then bent around a mandril, heated, then cooled and machined as required to be generally complementary with the shape of the lower portion of the shank to which the body is fastened.

Abstract: An appaatus is provided for automatically longitudinally shifting a horizontal transverse tool bar and the tillage unit or units supported therefrom relative to the lift hitch of a tractor from which the tool bar is supported responsive to crop row sensing structure sensing misalignment of the tillage unit relative to an associated crop row whereby to reestablish proper alignment of the tillage unit relative to the crop row and the crop row position sensing structure is adjustable for crop row width, elevation of the sensing structure relative to the tillage unit and also in a manner to adapt the crop sensing unit for sensing the stems or stalks of a row crop or opposite sides of an earth ridge in which a row crop is growing or is to be planted.

Abstract: Hydraulic lift cylinders on a transversely extending implement frame, such as a multi-section hinged implement, are connected by valve and conduit structure to operate as single acting cylinders in parallel during an automatic depth control mode for individual cylinder control. An operator control valve and depth sensing valve permit the operator to change to a fast raise/fast lower mode wherein flow control structure causes the lift cylinders to operate substantially in series for raising and lowering the implement in level fashion across its width to and from a transport position.

Abstract: A drawbar having a boom with at least two pivotally connected sections which in a field position extend generally transversely of the direction in which the draw is drawn. Each section carries at least one first soil working device and at least one other second soil working device is trailed behind said first soil working device. The sections are pivotable in unison, about a horizontal axis transverse to the direction in which the drawbar is drawn, from said field position to a non-working position. In the non-working position the soil working devices are raised in order that the sections can be pivoted relatively to each other to a folded, transport position.

Abstract: A control system for the hitch of a tractor includes a motor for moving the mechanical control linkages connected to a hitch control valve, the motor being in the form of an electric motor. The motor is controlled by way of an electrical circuit which includes a main switch, one or more secondary switches which are disposed outside a driving cabin, and a safety switch. The safety switch permits flow of current to the motor only when positional regulation is selected by a hitch control mode selector lever.

Abstract: A soil dressing implement useful as a sand trap rake, the head thereof including a transverse body portion with plurality of tines and a vane extending across the rear of the tines for the full width of the head. The tines, which are laterally spaced, have a downwardly and rearwardly sloped front edge merging into a rearwardly and downwardly curved bottom edge. The bottom edge curves slightly upward at the rear and terminates at a lower edge of the vane. The vane has a front flat surface which slopes downwardly and forwardly towards the lower edge thereof. The transverse body has a top surface having a rear edge which is forward of the bottom edges of tines when the implement is lying on its back. The implement has better raking characteristics than known devices because the front sloped surface of the vane has a tendency to pull the tines down into the sand and to distribute the sand which then flows between the tines and spills over the upper edge of the vane so as to not leave any tine marks.

Abstract: A garden tilling apparatus has a frame with movable arms extending out of the frame and soil-working tines connected to the forward-most portion of the movable arms. Inside the frame, a crankshaft is mounted coupled to the arms and the arms pivotally attached to the frame. A drive mechanism mounted on top of the frame rotates the crankshaft which in turn reciprocates in an elliptical manner the soil-working tines which engage the soil. Handles extend upwardly from the rear of the frame so that one operator may move and use the apparatus to till the soil.

Abstract: An electro-hydraulic arrangement regulating the lifting mechanism actuatable by a hydraulic motor, on an agricultural working vehicle having a driven wheel, comprises a plurality of sensors including a position sensor forming an actual value position signal, a force sensor forming an actual value force sensor, and an additional sensor forming an actual value slippage signal dependent on slippage of the driven wheel, a nominal value transmitter, a first summation point connected with the additional sensor and with the force sensor so as to obtain the slippage-dependent signal and the actual value force signal therefrom and to produce an output signal, a mixing device having a first input connected with the first summation point and for receiving the output signal and a second input connected with the position sensor for receiving the actual value position signal and producing an output signal, and a second summation point connected with the mixing device for receiving the output signal of the mixing device and

Abstract: A main frame construction for a motor grader wherein the main frame comprises a rear unit, a center unit, and a front unit. Both rear and center units are box-like structures in cross sections with constant transverse dimensions, with constant metal specification, with continuous welds at all four corners running longitudinally of each unit, with but one weld junction at a location spaced rearwardly of the knee area supporting a saddle structure for the blade, and without the provision of extra structural members and arrangements at the knee area. Minimum section changes within the box structures of the rear and center units, the elimination of weld starts and stops provides a strong smooth section of main frame alleviating locally high stresses at the knee area for mounting the saddle. The very simplicity of the rear and center unit box-structure as described and depicted is the heart of the improved main frame.

Abstract: A swing assembly for a small child is provided. The swing assembly includes first and second upright swing support frames, with each support frame being formed from a pair of upstanding support members. A base member is provided for rigidly fixing the pair of upstanding support members side-by-side one another in substantially perpendicular relation to an underlying surface. A swing seat is provided as well as hangers connected to the seat for suspending the swing seat in the swing-receiving space. The hangers are pivotally connected to the upper portions of the spaced-apart pairs of upstanding support members so that the hangers and the swing seat pivot about an axis that extends between the pairs of upstanding support members during movement of the swing seat relative to the first and second swing support frames.

Abstract: A moldboard plow with a bidirectional moldboard which includes a moldboard frame that can turn by use of a reversal mechanism which also serves as a tilting mechanism. Included is a hitching frame that has a central pole and hitching plates, a moldboard frame having a guide member extending along the longitudinal axis thereof, a set of bidirectional moldboards fastened to the hitching frame by a pivot pin for reversal of the plow so that the bidirectional moldboards cut into the soil on a right and left side of the plow, and a reversing mechanism connected to the guide member of the moldboard frame for moving the moldboard frame and the set of bidirectional moldboards to the right side and left side of the plow.

Abstract: An amusement ride is provided, of the type that moves and tilts passengers viewing a motion picture, which is more versatile than prior rides. A plurality of passenger-holding frames is provided, that are all moved in synchronism, each by a separate set of actuators, while the passengers view a stationary screen. The passenger-holding frame is pivoted up and down on a beam which is supported by only two largely vertical actuators, while two pairs of links or arms limit movement of the beam.

Abstract: A manual tiller, mulcher and weeder tool has an elongated upright handle having its lower end connected to a horizontal top plate which has a series of diamond-headed tines extended downwardly in parallel spaced apart relation from the underside of the top plate. A cleaning plate has a series of holes aligned with the tines for vertical sliding movement of the cleaning plate on the tines. Compression springs mounted on selected tines urge the cleaning plate to a lowered position adjacent the tine heads.

Abstract: A tractor having a high power-to-weight ratio (power 100 kw, weight 3500 kg) is obtained by using light-weight components (e.g., made from synthetic resin) for the cab, and by making the wheels smaller than is usual, i.e., with a diameter of 1.3 meters, and from aluminum or other light-weight material. Tractor is improved by providing an implement or implements which, in operation, are driven form power take-off shafts and act to propel the tractor.

Abstract: A cultivation tool includes a flat plate having outer peripheral sharpened edges with one or more notches on the rear edges to permit cutting of weeds. A handle is coupled to the rear of the plate for pulling the plate rearwardly when a weed of weeds are in the notches.

Abstract: A field cultivator frame has a number of generally horizontal implement frame sections, each frame section having ground engaging wheels for movable support over the ground. First and second center frame sections are pivotally connected to a prime mover by a hinged draw bar assembly. Front ends of the center frame sections are pivotally connected by a flex link assembly including a connecting bar with ball joint connections at either end. The flex link assembly allows vertical movement of the center frame sections relative to one another, which movement is limited by a plate assembly attached to one of the center frame sections. A swivel joint assembly connects rear parts of the first and second center frame sections for allowing hinged movement of the frame sections relative to one another. A spring-loaded limit assembly connects the first and second center frame sections and includes compression springs for resilient limiting of relative movement of the center frame sections.