Abstract: A coupling comprises a socket and a plug removably connected thereto. In the socket and the plug, a first fluid passage and a second fluid passage are formed, respectively. An on-off valve chamber, a first packing chamber and a second packing chamber are arranged in succession in the socket. An elastic packing member and a sealing member are disposed in the first and second chambers, respectively, so that their adjacent surfaces are pressed against each other. An on-off valve chamber having a cylindrical valve body is located in the on-off valve chamber in such a manner that the valve body can approach the first packing chamber and recede from it. It is urged toward the packing by a compression coil spring. An abutment which abuts against the packing is formed on an intermediate portion of the valve body.

Abstract: Apparatus for at least partially compensating for the rebound impact of an automatic diaphragm in a photographic objective comprising a diaphragm control ring for driving the leaves of the diaphragm and a diaphragm preselector ring for predetermining the diaphragm aperture; the rebound impact being defined as the recoil produced according to the laws of elastic collisions when the diaphragm control ring which shuts the diaphragm engages the stop of the diaphragm preselector ring; said apparatus comprising at least one movable auxiliary mass which frictionally opposes the rebound movement.

Abstract: A water closet or bidet comprises an arrangement for washing the lower parts of the body, and a spraying device by means of which preheated water is applied to the parts of the body to be cleansed. The spraying arrangement comprises at least one spray nozzle, which is supplied with preheated water by means of connecting elements. The connecting elements include a rotatable body (54, 154) rotatingly supported in a pedestal body (104, 152), provided with a blind bore hole (100) traversed by a transverse bore hole (102) and open toward the spray nozzle (34, 35). The pedestal body (104, 152) has an inlet orifice (110) in the area of the transverse bore (102), through which the spray nozzle is supplied with wash water via the transverse bore and the blind hole.