Machine tool transmission and control mechanism

Claim 1

IN A TIME DELAY MECHANISM FOR RETARDING THE FLOW OF PRESSURE FLUID TO A FLUID ACTUATED DEVICE; A VALVE BODY; A PAIR OF CYLINDERS FORMED WITHIN SAID VALVE BODY; A PAIR OF PISTONS SLIDABLE LONGITUDINALLY AND INDEPENDENTLY OF EACH OTHER BEING CARRIED WITHIN SAID RESPECTIVE CYLINDERS, EACH PISTON BEING PROVIDED WITH AN OPENING EXTENDING LONGITUDINALLY THERETHROUGH, SAID VALVE BODY BEING PROVIDED WITH A PLURALITY OF FLUID CONDUCTING PASSAGEWAYS HAVING COMMUNICATION WITH SAID CYLINDERS, ONE OF THE PASSAGEWAYS CONNECTING SAID CYLINDERS TO EXHAUST, ANOTHER OF THE PASSAGEWAYS BEING IN COMMUNICATION WITH ONE OF SAID CYLINDERS AND WITH SAID HYDRAULICALLY ACTUATED DEVICE; A SPRING DISPOSED BETWEEN SAID PISTONS IN A MANNER TO BIAS SAID PISTONS IN OPPOSITE DIRECTIONS WITHIN THEIR RESPECTIVE CYLINDERS; AND A SOURCE OF PRESSURE FLUID OPERATIVELY CONNECTED TO SAID CYLINDERS, ONE OF SAID PISTONS BEING PIVOTED WITH MEANS FOR DISTRIBUTING PRESSURE FLUID FROM SAID SOURCE TO ONE OF THE PASSAGEWAYS; WHEREBY THE FLOW OF PRESSURE FLUID TO SAID FLUID ACTUATED DEVICE IS RETARDED A PREDETERMINED INTERVAL OF TIME REGARDLESS OF THE VISCOSITY OF SAID PRESSURE FLUID.