Pneumatic timed drive

Claim 1

IN A FLUID POWERED DRIVE UNIT HAVING A ROTATABLE MEMBER, A UNIDIRECTIONAL DRIVE DEVICE OPERATIVELY CONNECTED TO SAID ROTATABLE MEMBER AND ACTUATABLE TO ROTATE SAID ROTATABLE MEMBER ONLY IN ONE PREDETERMINED DIRECTION, POWER STORAGE MEANS, A PNEUMATIC MOTOR UNIT HAVING A RECIPROCABLE POWER MEMBER MOVABLE IN ONE DIRECTION BY FLUID PRESSURE TO STORE ENERGY IN SAID POWER STORAGE MEANS, CONNECTION MEANS INCLUDING A RECIPROCABLE MEMBER MOVABLE WITH SAID RECIPROCABLE POWER MEMBER FOR OPERATIVELY COUPLING SAID POWER MEMBER TO SAID POWER STORAGE MEANS, AND AUTOMATIC FLUID CONTROL MEANS CONTAINED WITHIN SAID PNEUMATIC MOTOR UNIT FOR CONTROLLING THE TRANSFER OF ENERGY TO AND FROM SAID POWER STORAGE MEANS BY ALTERNATELY PERMITTING APPLICATION OF FLUID PRESSURE TO MOVE SAID POWER MEMBER IN SAID ONE DIRECTION TO STORE ENERGY IN SAID POWER STORAGE MEANS AND BY RELEASING FLUID PRESSURE APPLIED TO SAID POWER MEMBER THEREBY PERMITTING ENERGY STORED IN SAID POWER STORAGE MEANS TO BE RELEASED TO MOVE SAID POWER MEMBER IN THE OPPOSITE DIRECTION; MOTION CONVERTER MEANS COMPRISING A ROCKABLE DRIVEN MEMBER AND A PIN AND SLOT CONNECTION DRIVINGLY INTERCONNECTING SAID RECIPROCABLE MEMBER AND SAID DRIVEN MEMBER TO ROCK SAID DRIVEN MEMBER IN OPPOSITE DIRECTIONS, SAID PIN AND SLOT CONNECTION INCLUDING MEANS FORMING AN ELONGATED SLOT IN SAID ROCKABLE MEMBER AND A RIGID PIN FIXEDLY CONNECTED TO SAID RECIPROCABLE MEMBER AND PROJECTING THROUGH SAID SLOT, SAID UNIDIRECTIONAL DRIVE DEVICE DRIVINGLY CONNECTING SAID ROCKABLE DRIVEN MEMBER TO SAID ROTATABLE MEMBER TO ROTATE SAID ROTATABLE MEMBER IN SAID PREDETERMINED DIRECTION WHEN SAID DRIVEN MEMBER IS ROCKED IN A FIRST DIRECTION AND TO DISENGAGE FROM SAID ROTATABLE MEMBER WHEN SAID ROCKABLE DRIVEN MEMBER IS ROCKED IN A DIRECTION OPPOSITE TO THAT OF SAID FIRST DIRECTION.