Abstract: An apparatus, for a motor vehicle having a liquid-cooled engine, for heating windshield washer liquid or the like. The apparatus includes a cylindrical heat-exchanger housing that, via hose connectors that are disposed at both ends of the housing, can be disposed directly in the coolant line between the engine and a radiator, with the interior of the housing, through which the coolant flows, containing a tube coil that is helically wound in the longitudinal direction of the housing. Liquid that is to be heated flows through the tube coil, and the ends of the latter are conveyed out of the housing in a radial direction. The housing is divided, in an axial direction, into two semicylindrical shells which have abutting longitudinal edges that can be sealingly interconnected.

Abstract: The valve having a casing with an inflow and outflow connection which can be separated from or connected to one another by means of a movable valve member which can be brought to bear against a valve seat, the movable valve member being provided with a damping mechanism which prevents blow-like, rapid actuation at least in the closing direction. The damping or restraining mechanism consists of a displacer which is mechanically connected with the valve member, said displacer, during the movement of the valve member, slowly changing its volume through a narrow passage or leak. A non-return valve allows a more rapid movement in the opposite direction.

Abstract: An apparatus for clamping a body to a support in which the body is provided with a slot through which the clamping member can extend includes a clamping member having a shaft with threads at one end and a T-head at the other end, a support having a recess in one face to receive the T-head and an opening through which the clamping member shaft extends and a threaded member coupled to the threaded end of the clamping member, the threaded member being rotatable to axially move the clamping member. A first drive motor is provided to rotate the threaded member to extend the clamping T-head beyond the surface of the support. A second drive motor is provided to rotate the clamping member to a clamping position and to a releasing position. A source of power such as fluid under pressure is provided, the motors being hydraulic.