Abstract: A crushing apparatus for waste material comprising a housing and a drive shaft for driving counter-rotating rollers which mesh with each other and which are hollow and open at one end. The rollers are fitted with cutter elements spaced at intervals around the outside and have cavities between the cutter elements that open into the hollow interior of the rollers.

Abstract: A control device for operating a vehicle, in particular for driving and steering a motor vehicle, includes a two-armed lever which is suitably supported so as to be rotatable about a rotational axis and movable in a direction perpendicular to the rotational axis in order to permit steering operations and moving operations. For allowing a translational and a rotational motion, the lever is operatively connected to respective user-actuated members such as e.g. a steering wheel and a foot pedal and cooperates with each control member of hydrostatic transmissions for the drive wheels. Thus, an actuation of the steering wheel causes a translational motion of the lever which in turn displaces the control members of the drive wheels in a same direction while an actuation of the foot pedal rotates the lever so that the control members are displaced in a direction opposite to each other.