Abstract: A positioning lug 13 is formed which curvedly expands outwardly along the circumference of a half-circular bearing body 11 from the external surface of the bearing body. The positioning lug 13 is provided so that both transition sections thereof are integrated at a circumferential ends 12 with the bearing body 11. Unlike a conventional sliding bearing half shell provided with a tongue-like positioning lug protruding from a proximal end line 14, with transition sections separated from the bearing body, the sliding bearing half shell according to the present invention does not undergo the failure of its positioning lug due to the fatigue of the proximal end line 14 caused by cyclic bending stress.

Abstract: A timepiece movement comprises a rotor driven for intermittent rotation by a stepping motor, a speed-reducing wheel train and a second stop device. The speed-reducing wheel train has a movement conversion mechanism for transmitting intermittent rotary movement of the rotor to continuous rotary movement of a second hand wheel in a smooth manner. The second stop device is moveable between a first position, for immediately stopping the second hand wheel, and a second position, for immediately moving the second hand wheel at a predetermined speed.

Abstract: A heat exchanger for cooling system compressed air dehumidifiers includes an inner body forming a dehumidifying passage provided with a cooler, an outer body surrounding the inner body and forming a precooling passage along the outer periphery of the inner body, an air supply port opened in the outer body through which compressed air is led into the precooling passage from one end thereof, a communicating hole opened in the inner body to guide the air led into the precooling passage out through its other end into the dehumidifying passage through one end thereof, and a plurality of heat transmitting pipes extending through the precooling passage in order to form an air-flow passage which guides the compressed air out of the other end of the dehumidifying passage to an air discharge port provided in the outer body.