Abstract: A method for producing a shaft and a device containing such a shaft (22), in particular an armature shaft (22) of an electric motor drive (10), which shaft is held by at least one shaft bearing (43), includes forming a bearing surface (40) for guidance in a shaft bearing (42) onto the shaft (22) at at least one point by positive displacement of material.

Abstract: A self-propelled implement, preferably a combine or chopper, with a track belt drive shall be designed in such a way, that the wear of the track belts is reduced during shifting caused by cornering. The drive wheels and the idler pulleys of the track belt drive are equipped on both sides of the guide elements of the track belts with freely pivoting rollers, whose turning axes are perpendicular to the axles of the track drive. They are set into motion during contact with the guide elements, thus eliminating friction.

Abstract: A fuel injection pump comprising a pump piston comprising a pump working space communicating with a fuel supply space and an injection nozzle of an internal combustion engine to be filled with fuel during a pump piston intake stroke and to provide for flow of delivery fuel to the injection nozzle during a pump piston delivery stroke, a first pilot valve for controlling a quantity of fuel delivered to the injection nozzle and an arrangement for dividing the delivered quantity into preliminary and main quantities, the dividing arrangement comprising an assembly for venting a portion of fuel from the pump working chamber during the pump piston delivery stroke and a second pilot valve for controlling an amount of fuel vented from the pump working chamber.

Abstract: A rotary power transmission system comprises a hydrodynamic speed or torque converter or other fluid coupling in combination with a magnetically actuated friction clutch of simplified construction wherein the friction clutch is accommodated inside the housing of the fluid coupling whereas the magnet for actuating the friction clutch is located outside the housing and the magnetic field generated thereby penetrates through the housing.

Abstract: A sewing machine has a housing and a needle displaceable on the housing between a down position engaging through a workpiece and an up position disengaged therefrom. A drive is connected to a drive wheel rotatable on a drive shaft in the housing that in itself is operatively connected to the needle. A clutch including a clutch member on the shaft between the shaft and the wheel has a control element displaceable between an engaged position for rotationally coupling the wheel and the shaft and a disengaged position for free relative rotation of the wheel and the shaft. Thus in the engaged position of the clutch the drive can vertically reciprocate the needle between its up and down positions. A stopper member having an engaging part is mounted on the shaft and a stopper is mounted on the housing.