(under subclass 280) Apparatus in which the mechanical device includes either a body having a continuous surface of gradually increasing radius or a body of diverging opposed surfaces, movement of the movable pressure surface being caused by movement of the body transversely of the direction of compressing motion and between the pressure surface and a fixed abutment.
SEE OR SEARCH THIS CLASS, SUBCLASS:
263, for reciprocating platen presses in which the actuation of the platen is by a camming movement and the camming surface is interrupted to allow quick release of the platen for return by rebound of the material or by a biasing means.
282, for reciprocating platen presses in which a shaft turned cam is used to actuate a pitman connected to the platen.
SEE OR SEARCH CLASS
147, Coopering, 8, for machines which force hoops upon barrels by means of a cam operated pressing or driving means.
