Quick-acting multiple-force air cylinder

Claim 1

A DOUBLE-ACTING AIR CYLINDER ASSEMBLY FOR IMPARTING IN ONE DIRECTION AND IN QUICK SUCCESSIVE AN INITIAL FORCE AND A LARGER FORCE COMPRISING A FIRST BARREL HAVING A PISTON SLIDEABLE THEREIN RIGIDLY CONNECTED TO A ROD FOR IMPARTING SAID FORCE, A SECOND BARREL IN AXIAL ALIGNMENT WITH SAID FIRST BARREL AND HAVING AN INTERNAL DIAMETER GREATER THAN THE INTERNAL DIAMETER OF SAID FIRST BARREL, A FREE-FLOATING PISTON SLIDABLY RECEIVED ON SAID ROD AND WITHIN SAID SECOND BARREL, A CYLINDER HEAD ON SAID FIRST BARREL AND A SECOND CYLINDER HEAD FOR SAID SECOND BARREL, SAID SECOND CYLINDER HEAD HAVING A PACKED BORE THERETHROUGH FOR THE SLIDEABLE RECEPTION OF SAID ROD, MEANS COMPRISING THE END OF SAID FIRST BARREL OPPOSITE SAID FIRST HEADER AND THE ADJACENT END FACE OF SAID FREE-FLOATING PISTON TO PROVIDE AN ANNULAR VALVE WHICH DISCHARGES OUTWARDLY TO THE ATOMSPHERE, MEANS COMPRISING AN ADJUSTABLE RELIEF VALVE TO MAINTAIN AIR PRESSURE IN A FIRST SPACE BETWEEN SAID END FACE AND SAID FIRST MENTIONED PISTON AT A PREDETERMINED VALUE, MEAN TO SUPPLY REGULTED AIR PRESSURE TO A SECOND SPACE BETWEEN SAID FREE-FLOATING PISTON AND THE CYLINDER HEAD ON SAID SECOND BARREL WHEREBY SAID ANNULAR VALVE IS HELD CLOSED, MEANS TO SUPPLY AIR UNDER PRESSURE TO THE HEAD END OF THE SPACE WITHIN SAID FIRST BARREL WHEREBY SAID FIRST MENTIONED PISTON AND ROD MAY BE CAUSED TO MOVE AND EXERT AN INITIAL FORCE, AND MEAND TO ABRUPTLY WITHDRAW THE AIR PRESSURE FROM SAID SECOND SPACE TO CAUSE SAID FREE-FLOATING PISTON TO MOVE RELATIVELY TO SAID FIRST BARREL AND OPEN SAID ANNULAR VALVE WHEREBY A GREATER FORCE IS IMPARTED BY SAID ROD.