Abstract: A tow behind aerator is provided for connected with a hitch of a garden tractor. The aerator includes a connection, a float, a pivot, and an aerator body. The float allows for the aerator to ride on variations of terrain and elevation. The pivot allows the aerator body to pivot or rotate relative to the tractor such that the aerator is able to turn around objects. The pivot may be engaged or disengaged to control the amount of pivot. Further, the aerator includes a self-centering function for centering the aerator when raising the aerator to a non-aerating configuration. A universal sleeve hitch may be used to connect the aerator to the tractor and can be operated to raise and lower the aerator.

Abstract: A device for stabilizing the two lower steering arms (1) of a tractor, with the lower steering arms (1) actuated by a hydraulically operated power lever (9). The arms are each associated with a side strut (6) with a first single-acting hydraulic cylinder (7) for stabilizing and fixing purposes. A line connection between the first single-acting hydraulic cylinders (7) and the power lever (9) can be effected by a control valve (13). In order to center the lower steering arms (1) and set the arm to a pre-determined dimension of spread, even when no implement is attached, the line (14) which leads to the second single-acting hydraulic cylinder (10) of the power lever (9) contains a pressure-controlled first return valve. A bypass line (21) with a second return valve (22) is provided to lock in the direction opposite to that of the first return valve.

Abstract: The MFD kickout switch controls the drive system on a tractor's front wheels in response to the controlled movement of a three point hitch. Tractors which are equipped with a system that disengages the front drive wheels when a tighter turning radius is needed can utilize the kickout switch to automatically disengage the front wheel drive when an associated three point hitch is raised.

Abstract: An agricultural machine including a fixed mast secured to a frame body so as to be projected from a front end portion of the frame body, a movable mast which is pivotably mounted to the fixed mast so as to be arcuately movable in an agricultural working direction relatively to the fixed mast and has a mount portion to which a top link of a tractor is mounted, and a mode selecting mechanism provided between the movable mast and the fixed mast for changing and fixing a positional relationship between the movable mast and the fixed mast interlockingly with a lifting operation of the agricultural machine to thereby freely change a penetrating angle of the agricultural machine into the soil.

Abstract: Device for carrying a load behind a vehicle, comprising:a frame whereon the load is to be placed;one or more support wheels for supporting the frame; andone or more arms for causing one or more shafts of the support wheels to move between a first position wherein the frame rests on a ground and a second position wherein the frame (and the load) are at least partially supported by the support wheels.

Abstract: A material handling attachment such as a bucket or the like is pivotally secured to the three-point hitch assembly of the tractor. The hitch assembly is movable between a lower position and an upper position by means of standard equipment on the tractor. A mechanical linkage interconnects the bucket, hitch assembly and the tractor so that the bucket will be in a substantially level position when the hitch assembly is in its lowermost position. As the hitch assembly is moved upwardly relative to the tractor, the linkage maintains the bucket in a level position. When the hitch assembly reaches its uppermost position, the linkage causes the bucket to be moved to a dumping position. After the material in the bucket has been dumped therefrom, the three-point hitch assembly is lowered with the bucket being automatically re-set to its operative or working position.

Abstract: An improved hydraulic circuit for raising and lowering a three-point hitch-mounted implement having a lift assist assembly and for selectively lowering the lower draft links of the three-point hitch to transfer implement weight to the rear wheels of the tractor without affecting the normal operation of the tractor operator control valve. A shuttle valve connects the rockshaft control valve, which otherwise would be disabled, to the rockshaft cylinder which controls the lower draft links. The ball-check valve also connects the rockshaft cylinder to the operator control valve while isolating the rockshaft control valve from the operator control valve.

Abstract: A material handling attachment such as a bucket or the like is pivotally secured to the three-point hitch assembly of the tractor. The hitch assembly is movable between a lower position and an upper position by means of standard equipment on the tractor. A mechanical linkage interconnects the bucket, hitch assembly and the tractor so that the bucket will be in a substantially level position when the hitch assembly is in its lowermost position. As the hitch assembly is moved upwardly relative to the tractor, the linkage maintains the bucket in a level position. When the hitch assembly reaches its uppermost position, the linkage causes the bucket to be moved to a dumping position. After the material in the bucket has been dumped therefrom, the three-point hitch assembly is lowered with the bucket being automatically re-set to its operative or working position.

Abstract: A material handling bucket or the like is mounted on a high-lift mechanism which is secured to the three-point hitch assembly of a tractor. The bucket is pivotally secured to the high-lift mechanism. The high-lift mechanism includes a pair of pivotal arms which are movable between upper and lower positions by means of a hydraulic cylinder. When the pivotal arms are moved to their uppermost position, the bucket is moved above the position normally possible in conventional mechanisms and the bucket is moved to its dumping position.

Abstract: A hitch linkage for hitching an implement to a front mount riding mower including a plurality of hitch arms detachably mounted to the lift arms of the riding mower. A cross-link is pivotally mounted between the hitch arms. The support struts of a support wheel are fixably mounted to the cross-link. A cylinder selectively pivots the cross-link to raise or lower the support wheel. When the support wheel is lowered into ground engaging position, the support wheel is leading to the drive wheels of the riding mower during implement transport.

Abstract: A soil leveling apparatus (10) is disclosed which includes a frame (11) having ground-engaging members (12a, 12b, 12c, 13) disposed transverse to the direction of motion, side rail members (14, 15) in which the ends of the ground-engaging members are secured, and upstanding connecting means (20) for operatively attaching the apparatus (10) to the draft vehicle. A scarifying means (50) for breaking up and loosening the soil prior to the leveling operation can be mounted near the forwardmost area of the apparatus (10). The scarifying means (50) includes a cross-shaft (51), connector arms (52) for pivotally connecting the cross-shaft to the frame (11), scarifiers (55) extending downwardly from the cross-shaft and a hydraulic cylinder (61) for lowering and raising the scarifying means into and out of the soil. Another embodiment incorporates a scarifying means (50) having scarifiers (66) which maintain a constant orientation during lifting and lowering by a self-camming action.

Abstract: The invention discloses a "three-point" coupling suitable for use both at the front and at the rear of an industrial, agricultural, public works or forestry vehicle, e.g., a tractor.To each bracket of a crossbar attached to a tractor there are pivoted on one side, the rod of a jack and on the other hand firstly a traction rod and secondly one end of a device of adjustable length, the other end of which is pivoted to the associated bar. The two jacks are connected mutually and to a common hydraulic energy source, and the stroke of each piston can be limited in order to determine the final vertical position of the bars by a shutter block carried by one of the jacks and actuated by an adjustable stop fitted on a rod integral with the rod of the jack coming into contact with an actuating push rod of the block.

Abstract: Removable lifting devices for tractors having horizontal front wheel axles which pivot relative to the contour of the ground, one device having tubes pivotably connected on each side of the tractor frame which rotatably and pivotably receive further tubes connected by a hinged structure to the tractor's forward axle and which tend forwardly thereof to be interconnected across the front of the tractor. The connecting hinged structure permits pivotable movement of the tube relative to the axle about substantially horizontal axes parallel and perpendicular to the longitudinal axis of the tractor. The front structure connecting the tube portions extending forwardly from the axle includes a hydraulically operated three-point lifting device wherein hydraulic cylinders are disposed within a quadrangular arrangement of pivotable arms including the lower of the three-point lifting device's links.

Abstract: A folding implement mountable on the three-point hitch of a tractor has a U-shaped, downwardly oriented, central member with a horizontal wing extending laterally from each side of the central member, behind the rear wheels of the tractor. Each horizontal wing has a series of downwardly extending tines spaced thereon. The tines score the earth behind each tractor wheel when the wings are horizontal. A lifting mechanism affixed to the wings and the tractor rotates the wings vertically each time the three-point hitch is raised so that the implement is folded out of the way when turning the tractor.

Abstract: A hydraulic system is provided for an integrally-mounted agricultural implement which permits control of the tractor three-point hitch rockshaft cylinder, upper draft link hydraulic cylinder and lift assist hydraulic cylinder through a single valve control lever. One end of the double-acting lift assist cylinder is plumbed in parallel with the single-acting rockshaft cylinder and the other end of the lift assist cylinder is plumbed in parallel with the single-acting upper link cylinder. The fluid lines are coupled with a single control valve to permit the implement to be supported by the lift assist wheel and three-point hitch during transport, permit it to rock about the lower connection with the three-point hitch during transport and float vertically at the hitch connection during field operations while operating with the lift assist wheel elevated.

Abstract: A transfer apparatus for use between a tractor-like vehicle and a trailer-like vehicle connected by a hitch connection means. The transfer apparatus comprises a linkage member attached between the tractor and trailer with at least a portion of the linkage member extending between the tractor and trailer at a position vertical with respect to the hitch connection means. Means in conjunction with the linkage member such as a hydraulic actuator may supply a rigid connection through the linkage member thereby preventing free hinging in a vertical plane between the tractor and trailer at the hitch connection means. The rigid connection may, for example, prevent rear-up of the tractor and shift weight to the rear driving wheels of the tractor.