Abstract: A wiper arm for transmitting moment from drive to a wiping element for wiping a vehicle window has a hub member connected with a drive, a U-shaped body member pivotally connected with the hub member and having two lugs connected with one another by a web so as to form a space closed at its three sides, a wiper rod accommodated in this space of the body member and arranged to support the wiping element and to move in direction of elongation of the body member, a structural member accommodated in the space of the body member and connectable with the wiper rod, a prestressed spring member accommodated in the space of the body member and mounted on the hub member and the structural member so as to urge the wiper rod, and a cover member which is arranged pivotally relative to the body member so as to pivot to a closed position in which the cover member closes the space of the body member at its fourth side and arrests the wiper rod.

Abstract: An electromotor driven regulating arrangement, especially for regulating the speed of a motor vehicle, comprises an input shaft rotatable in one and in the opposite direction by a reversible electric motor, an output shaft adapted to be connected to a member for regulating the speed of the vehicle, and a coupling having two coupling members respectively connected with the input shaft and the output shaft for rotation therewith and a looped spring arranged between the coupling members by means of which the coupling members may be connected for simultaneous rotation in either direction. The arrangement comprises further a control member and electromagnet means cooperating therewith and acting on the spring for rendering the coupling active or inactive depending on whether the electromagnet is energized or deenergized.

Abstract: A controlled member is movable between two end positions defined by respective first and second stops, particularly a flap-type valve member located in the exhaust gas conduit of an internal combustion engine movable between first and second end positions in which the valve member comes into abutment with respective first and second seating surfaces of the conduit.