An agricultural working machine is provided with a shaft having with at least one tool, the rotation axis of which extends in operation at an angle to the direction of travel and at least substantially parallel to the ground. A housing is arranged on a frame of the working machine, which housing is arranged at least in sections above the shaft and has an inner wall delimiting a channel between the shaft and the housing. The inner wall of the housing is at least formed by a plurality of segments arranged next to one another as viewed in the direction of travel.

An agricultural working machine is provided in the form of a soil tillage machine designed as a soil tiller. A shaft is provided with at least one tool, the rotation axis of which extends in operation at an angle to the direction of travel and at least substantially parallel to the ground. A housing is arranged on a frame of the working machine at least in sections above the shaft, and has an inner wall delimiting a channel between the shaft and the housing. The housing has a front and a rear, movable housing part with respect to the direction of travel, with respective inner wall parts which each extend along the shaft and which each have at least two adjustable, different operating positions in which the respective inner wall parts of the housing parts are positioned differently to the shaft.

A snow tooth for a snow tiller for preparing the snowpack of ski slopes; the snow tooth comprising a first projection having a first height and a second projection having a second height, the first height and the second height; the snow tooth being shaped so as to be connected to a rotating shaft and have, in use, a main direction of rotation. The first projection is arranged along the snow tooth so that, in use, the first projection sinks into the snowpack before the second projection in particular when, in use, the snow tooth is attached to a shaft of the snow tiller and the shaft rotates in the main direction of rotation.

The stand-up, handheld machine comprised of a small engine/motor, an extended tubing housing a rotating internal transmission shaft, mounted to a speed reduction box. The speed reduction gearbox transmits rotation and torque to cutting and excavating blades via output shafts. Cutting blades cut and excavate soil to desired depth and width. Operator cuts and excavates trench by linearly moving machine along cutting surface. Operator controls speed of blades through throttle/speed control of power unit.

In a tillage implement for being towed by an agricultural tractor across ground to be towed and having a main frame supporting a plurality of tillage units thereon in which each tillage unit includes a disc supporting arm mounted on the main frame, disc mounting assemblies support respective tillage discs on the disc supporting arms. Each assembly includes a mounting body forming a socket therein and a shaft partly received within the socket so as to support a tillage disc on a hub rotatable on a portion of the shaft protruding from the mounting body. The shaft includes a tapered shaft section received within a tapered socket section in the socket of the mounting body to securely and releasably mount the shaft relative to the mounting body.

A knife for a cylindrical rotor includes at least two sharpened edges adapted to cut materials during land clearing or mulching. The knife further includes a top surface and a bottom surface wherein the knife is shaped as an inverted frusto-square pyramid. The knife may further include a tapered sidewall defining one sharpened edge. The angle may be about 30 to about 60. The knife may have four sharpened edges. The knife further may include an aperture that may be equidistant from the four sharpened edges. The knife is adapted to be moved when one sharpened edge becomes dull. The knife may further include a conical countersunk aperture. The knife may have a thickness of about to about .