Abstract: A worm reduction gear assembly has a casing or housing composed of two tube parts and three flanges on ends of the tube parts. The worm wheel is journaled between bearings in one tube and meshes with a worm in the other tube. The bearings are received in centering bushes which are sealed by seals in grooves formed in the respective tube. A supporting connecting can be provided on the casing or housing for a steering wheel preferably along the center of the worm wheel and worm and perpendicular to the axes of the worm and worm wheel shaft.

Abstract: A worm reduction gear has a casing formed by a pair of tubes oriented at right angles between another and respectively receiving a wormwheel shaft and a wormshaft. In the tube receiving the wormwheel shaft, the wormwheel is flanked by a pair of bearings held by respective bushings prevented from axial displacement by C-clips received in respective grooves adjacent the respective end of that tube. The worm on the wormshaft meshing with the wormwheel is also supported by bearings in the respective tube and at one end of one tube, at least, and preferably an end of the tube receiving the wormwheel, a flange is formed.

Abstract: In a machine comprising a plurality of driven working implements, at least one common main drive is provided, which has a main drive shaft, from which at least some of the working implements are driven directly through the intermediary of non-positive clutches associated with the respective working implements. Such machine can be operated in an energy-saving and ecologically satisfactory manner and also permits a saving of material and nevertheless can be used for a large number of purposes and to perform a plurality of operations often required in specific fields of application.

Abstract: A mixing apparatus, e.g. for making concrete, has a triangular base supporting a rotatable or nonrotatable, upwardly open cylindrical drum as well as a main shaft carrying a large sprocket wheel which is linked by a chain with a smaller sprocket wheel on an auxiliary shaft journaled on one of the sides of the triangle. A motor mounted on another side of the base drives the auxiliary shaft via a speed-reducing belt transmission. The main shaft and/or an extension thereof above the drum carries ancillary force-transmitting members such as a reel or a sprocket for the selective operation of external accessories, e.g. a shovel, a hoist, or a force pump. Bulk material in the drum is agitated by a set of relatively rotating blades which may be driven by the main shaft or by a separate motor.