Abstract: A flow control valve comprising a housing, in turn comprising a substance inlet opening and a substance outlet opening and a substance channel extending between the substance inlet and outlet openings. The valve further comprises: a piston carried by the housing and movable relative thereto; a first biasing member biasing the piston towards a first piston postion in which the piston seals the substance channel; a guide channel carried by the housing; and a valve actuator movable along and whithin the guide channel between first and second actuator positions.

Abstract: A filming camera having a synchronous sound recording of the type in which the film is driven by a claw undergoing a reciprocating movement produced by a motor and, downstream of the claw, by a capstan driven by a second motor, wherein the claw motor has a constant speed and the capstan motor speed is variable and means are provided to make the average speed of said capstan motor a determined function of the claw motor speed.

Abstract: The invention has for its object a cinecamera comprising an incorporated pressure pad and which is designed to use a loading clip of the type having a first gate with a pressure pad incorporated in the clip and a second film passage gate without an incorporated pressure pad.Said camera comprises means for making the pressure pad incorporated in the loading clip inoperative and its incorporated pressure pad is arranged to co-operate with that portion of the film passing in front of the said second gate.