Variable impact tile press

Claim 1

IN A TILE PRESS INCLUDING A STATIONARY DIE FOR CONTAINING CLAY DUST, A CYLINDER HAVING A PISTON, AND A PISTON ROD PROJECTING FROM ITS LOWER END, SAID PRESS ALSO INCLUDING AN UPPER IMPACT MEMBER CARRIED BY SAID PISTON ROD AND A LOWER IMPACT MEMBER HAVING MEANS FOR SUSPENDING IT FROM SAID UPPER MEMBER IN INITIALLY SPACED AND LIMITED UNRESTRAINED, VERTICALLY MOVABLE RELATION OF SAID UPPER MEMBER TOWARD AND FROM SAID LOWER MEMBER, THE UNRESTRAINED MOVEMENT OF SAID UPPER MEMBER TOWARD SAID LOWER MEMBER BEING LIMITED ONLY BY CONTACT WITH SAID LOWER MEMBER AND ITS UNRESTRAINED MOVEMENT FROM SAID LOWER MEMBER BEING LIMITED ONLY BY THE MEANS FOR SUSPENDING THE LOWER MEMBER THEREFROM; AND A RAM CARRIED BY SAID LOWER IMPACT MEMBER FOR IMPACT ON CLAY DUST IN SAID STATIONARY DIE; MEANS FOR EFFECTING A RETARDED AND RELATIVELY LIGHT IMPACT OF SAID RAM ON SAID CLAY DUST FOLLOWED BY A RAPID AND HEAVIER IMPACT ON SAID DUST, AND THE IMMEDIATE RETRACTION OF SAID RAM FROM CONTACT THEREWITH, SAID MEANS COMPRISING, IN COMBINATION, A PIPE IN COMMUNICATION WITH THE UPPER END OF SAID CYLINDER AND A SOURCE OF RELATIVELY HIGH AIR PRESSURE, AND A PIPE IN