Abstract: The press blocking and air logic control system of this invention embodies a press ram blocking apparatus and air logic circuitry and control means in combination for moving a ram blocking member into ram stopping position thereunder upon the occurrence of one or more events justifying blocking of the press ram, to prevent injury or damage to personnel or equipment which would expectedly result from inadvertence, error or accident. The air logic control circuitry for the blocking device is connected to and in association with conventional press circuitry for the press ram actuating mechanism. For normal press operation, the ram blocking member is retained in retracted position by its air logic control circuitry.

Abstract: The press blocking and control system of this invention embodies a press ram blocking apparatus and circuitry and control means for moving a ram blocking member into ram stopping position thereunder upon the occurrence of one or more events justifying blocking of the pressed ram, to prevent injury or damage to personnel and equipment which would expectedly result from inadvertence, error or accident. The control circuitry for the blocking device is connected to and in association with conventional press control circuitry for the press ram actuating mechanism. For normal press operation, the ram blocking member is retained in retracted position by its actuating apparatus and control circuitry.