Pneumatically power operated nailing machine

Claim 1

IN A PNEUMATICALY POWER OPERATED NAILING MACHINE FOR SEVERING AND DRIVING NAILS FROM AN ELONGATED NAILNG STRIP AND INCLUDING DIE MEANS MOVABLE RECIEVIN THE NAILING STRIP AND SEQUENTIALLY CENTERING THE NAILS THEREIN AS THE NAILING STRIP IS ADVANCED, MEANS GUIDING AND ADVANCING THE NAILING STRIP TO THE DIE MEANS, AND A MOVABLE BLADE ALIGNED AND COOPERATING WITH THE DIE MEANS AND ADVANCED AND RETRACED FOR SEQUENTIALLY SEVERING AND DRIVING NAILS FROM THE ADVANCING NAILING STRIP, THE IMPROVEMENT COMPRISING, DOUBLE ACTING PNEUMATIC MOTOR MEANS INCLUDING A DIFFERENTIAL AREA PISTON CONNECTED TO THE BLADE FOR MOVING THE BLADE, A RESERVOIR CONTINUOUSLY SUPPLYING AIR UNDER PRESSURE TO THE SMALLER AREA OF THE PISTON FOR ADVANCING THE BLADE IN THE NAIL SEVERING AND DRIVING DIRECTION, MEANS INCLUDING A SINGLE THREE WAY VALVE MOVABLE TO A NORMAL POSITION FOR SUPPLYING AIR UNDER PRESSURE TO THE LARGER AREA OF THE PISTON FOR NORMALLY RETRACTING THE BLADE AND MOVABLE TO AN OPERATING POSITION FOR RAPIDLY DUMPING AIR FROM THE LARGER AREA OF THE PISTON TO ALLOW THE AIR UNDER PRESSURE ON THE SMALLER AREA OF THE PISTON TO RAPIDLY ADVANCE THE BLADE FOR SEVERING AND DRIVING A NAIL FROM THE NAILING STRIP IN A SINGLE BLOW, SPRING MEANS NORMALLY MOVING SAID SINGLE THREE WAY VALVE TO ITS NORMAL POSITION, AND MANUALLY OPERATED MEANS FOR MOVING SAID SINGLE THREE WAY VALVE FROM ITS NORMAL POSITION TO ITS OPERATING POSITION AGAINST THE ACTION OF SAID SPRING MEANS,