Ratio selector type tandem control valve

Claim 1

IN A FLUID PRESSURE SYSTEM HAVING A PAIR OF FLUID PRESSURE SOURCES AND A PAIR OF FLUID PRESSURE RESPONSIVE MOTORS, MEANS FOR CONTROLLING THE APPLICATION OF FLUID PRESSURE BETWEEN SAID SOURCES AND MOTORS INCLUDING A HOUSING, A PAIR OF APPLICATION MEANS SUBSTANTIALLY CONCERTLY MOVABLE IN SAID HOUSING IN RESPONSE TO AN APPLIED FORCE, MEANS WITHIN SAID HOUSING INCLUDING SAID APPLICATION MEANS PROVIDING A PAIR OF PRESSURE FLUID FLOW PASSAGE FOR RESPECTIVE CONNECTION WITH SAID SOURCES AND MOTORS, OPPOSED END PORTIONS ON ONE OF SAID APPLICATION MEANS RESPECTIVELY RESPONSIVE TO FLUID PRESSURE APPLIED TO SAID MOTORS, ONE OF SAID END PORTIONS HAVING A LESSER PRESSURE FLUID RESPONSIVE AREA THAN THAT OF THE OTHER OF SAID END PORTIONS, AN INTERMEDIATE PORTION ON SAID ONE APPLICATION MEANS BETWEEN SAID OPPOSED END PORTION THEREOF AND DEFINING WITH SAID HOUSING A FLUID PRESSURE CHAMBER, SAID INTERMEDIATE PORTION HAVING A PRESSURE FLUID RESPONSIVE ARES SUBSTANTIALLY EQUAL TO THE DIFFERENCE BETWEEN THOSE OF SAID END PORTIONS AND RESPONSIVE TO FLUID PRESSURE IN SAID CHAMBER, SAID APPLICATION MEANS BEING SUBSTANTIALLY CONCERTLY MOVABLE IN RESPONSE TO THE APPLIED FORCE TO EFFECT THE APPLICATION OF FLUID PRESSURE FROM SAID SOURCES THROUGH SAID FLOW PASSAGES TO SAID MOTORS, AND SELECTIVELY OPERABLE MEANS FOR CONNECTING SAID CHAMBER IN PRESSURE FLUID COMMUNICATION WITH THE ATMOSPHERE AND WITH THE FLUID PRESSURES APPLIED TO ONE OF SAID MOTORS, THE APPLIED FLUID PRESSURES IN SAID FLOW PASSAGES AND ACTING ON SAID AREAS OF THE OPPOSED END PORTIONS ON SAID ONE APPLICATION MEANS BEING IN A PREDETERMINED RATIO WHEN SAID CHAMBER IS CONNECTED WITH THE ATMOSPHERE AND IN A RATIO DIFFERENT THAN THE PREDETERMINED RATIO WHEN SAID CHAMBER IS CONNECTED WITH THE FLUID PRESSURE APPLIED TO SAID ONE MOTOR.