Speed regulating valve

Claim 1

IN AN AUTOMATICALLY CONTROLLED FLUID SYSTEM, A REVERSELY MOVABLE PISTON, A CONTOURED CAM MOVABLE WITH SAID PISTON, A MOVABLE SPEED REGULATING VALVE MECHANISM INCLUDING A MOVABLE VALVE ELEMENT, A SOURCE OF FLUID, A FLUID CIRCUIT CONNECTING SAID FLUID SOURCE WITH SAID PISTON AND INCLUDLING FLUID CONDUIT MEANS CONNECTING SAID VALVE MECHANISM WITH SAID PISTON, SAID VALVE ELEMENT BEING MOVABLE IN SAID FLUID CIRCUIT TO OPEN AND CLOSE AND VARIABLY REGULATE THE PASSAGE OF FLUID THROUGH SAID CIRCUIT IN TWO DIRECTIONS, MEANS ON SAID SPEED REGULATING VALVE MECHANISM ENGAGEABLE WITH SAID CAM DURING THE MOVEMENT THEREOF AND CONNECTED WITH SAID VALVE MECHANISM TO CAUSE THE VALVE ELEMENT TO MOVE AN AMOUNT IN ACCORDANCE WITH THE CONTOUR OF SAID CAM TO VARY THE AMOUNT OF THE FLOW OF FLUID IN ONE DIRECTION ABOUT SAID VALVE ELEMENT TO SAID PISTON ACCORDING TO THE CONTOUR OF SAID ENGAGED CAM WHEREBY SAID PISTON IS CAUSED TO MOVE IN ONE DIRECTION AT SPEEDS CORRESPONDING TO THE VARIED FLOW OF FLUID, SAID VALVE ELEMENT BEING MOVABLE IN RESPONSE TO FLUID PRESSURE IN THE REVERSE OF SAID ONE DIRECTION OF FLOW OF FLUID TO REVERSE THE DIRECTION OF THE FLOW OF FLUID TO SAID PISTON TO CAUSE SAID PISTON TO MOVE IN THE REVERSE DIRECTION AT SPEEDS UNCONTROLLED BY THE CONTOUR OF SAID CAM.