Abstract: A suspension for a mower includes a stationary part, a movable part, and at least one cutting unit. The moveable part is connected to the stationary part via a hydraulic actuator such that an actuation of the hydraulic actuator displaces the movable part in relation to the stationary part. Displacement of the movable part includes a vertical component of displacement of the movable part. At least one cutting unit is mechanically connected to the movable part.

Abstract: An attachment system for removably attaching an implement under a vehicle. The mounting system includes a vehicle frame. The vehicle frame has a pair of spaced apart frame portions. Each of a pair of hitch receiving points is connectable with a respective one of the frame portions. An implement includes support structure extending for a length. A pair of hitch pins is associated with the support structure. The hitch pins are spaced apart in a direction along the length of the support structure. Each hitch pin is for attachment to a respective one of the hitch receiving points. A structural member is associated with the support structure and has a portion adapted to attach to structure outboard of a frame portion. A lift mechanism is connectable with a portion of the vehicle frame. The lift mechanism is attachable with the structural member to move the hitch pins relative to the hitch receiving points.

Abstract: A combination is made up of a tractor and a seeder suitable for direct drilling mounted on a three-point hitch of the tractor. The seeder has a crossbeam that is connected to the three-point hitch and on which a plurality of sowing units are arranged laterally in succession. The sowing units, each equipped with at least one furrow opener, are respectively prestressed downward in relation to the crossbeam by an actuator, and the three-point hitch can be self-locked in relation to a chassis of the tractor. During the sowing operation, the pressing forces for the furrow openers are therefore introduced via the sowing units, the actuator, the crossbeam and the three-point hitch into the chassis of the tractor.

Abstract: A hitch adjustable rear blade hitched to the back of a tractor for earth grading operations. The blade having an elongated cylindrical skid releasably mounted to the back of the blade adjacent the leading edge of the blade and a pair of spaced apart stabilizer springs adjustably mounted to the front of the blade holding the blade in tensional position. A front blade having the elongated cylindrical skid releasably mounted is also disclosed.

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.

Abstract: A cultivator for attachment to a crop harvester including at least one tool frame member with soil tilling tools adjustably mounted relative thereto. A shaft is provided rotatably mounted relative to a support frame of the crop harvester. An actuating member is operatively connected to the shaft and the support frame for selectively imparting rotation to the shaft. A link is operatively, pivotally connected between the tool frame member and the support frame for guiding the frame member and the soil tilling tools between a raised position out of engagement with a ground surface and a lowered position into engagement with the ground surface. A connecting member is operatively connected to the shaft and the frame member for translating rotational motion of the shaft into rotatable, vertical motion of the tool frame member and the soil tilling tools about the link pivotally mounted to the support frame to selectively raise and lower the frame member and the soil tilling tools.

Abstract: An earth working attachment which can be easily manufactured, assembled and installed on a tractor of any size but is primarily suitable for garden type tractors as have low horsepower and includes tractor mounting brackets, a main beam supporting the earth working tools, and a lifting means for raising and lowering the tools in a plane exteriorly of the rear wheels of the tractor.

Abstract: Differential length parallel lift arms have means at one end for attachment to a belly mounted tractor appliance. At their opposite ends the lift arms are adapted to be pivotally mounted on a common axis on a tractor under which the appliance is adapted to be located. Lift arm actuating means are connected to the lift arms for effecting substantially parallel lifting of the appliance by the arms. Means for effecting operation of the actuating means may be operated hydraulically or otherwise from the tractor seat.

Abstract: A tractor attachment adapted for removable mounting on a tractor to provide support for agricultural implements comprises a substantially U-shaped structure having a pair of spaced, substantially parallel arms joined at corresponding ends by a transverse framework having mounting elements adapted to be connected to a tractor's conventional three-point hitch. At the forward ends of the arms are mounted implements such as bean puller units and the length of the arms is such that the implements occupy a position between the front and rear wheels of the tractor. The arms are hinged between their ends to facilitate the mounting and demounting of the attachment to and from the tractor.