Mechanism for mutual change between different types of displacement and an amplifier of force or torque

Claim 1

A SERVO MOTOR FOR PRODUCING FORCEFUL MOTION ON AN OUTPUT SHAFT BY A MINIMUM FORCE APPLIED TO AN INPUT SHAFT COMPRISING A CLOSED CLYINDER, A SNUGLY FITTING PISTON MOUNTED IN SAID CYLINDER AND PROVIDING WITH SAID CYLINDER A PAIR OF CHAMBERS, MEANS TO MAINTAIN SAID PISTON AGAINST MOVEMENT IN ONE OF AN AXIAL MOVEMENT OR A ROTARY MOVEMENT WHILE THE PISTON IS FREE TO MOVE IN THE OTHER OF AN AXIAL MOVEMENT OR A ROTARY MOVEMENT, AN OUTPUT SHAFT CONNECTED TO SAID PISTON, A FIRST PAIR OF INDEPENDENT PASSAGE MEANS, ONE OF SAID FIRST PAIR OF PASSAGE MEANS PROVIDING A SUPPLY OF FLUID PRESSURE TO ONE CHAMBER, THE PROVIDING A SUPPLY OF FLUID PRESSURE TO ONE CHAMBER, THE SUPPLY OF FLUID PRESSURE TO THE OTHER CHAMBER, A SECOND PAIR OF INDEPENDENT PASSAGE MEANS, ONE OF SAID SECOND PAIR OF PASSAGE MEANS PROVIDING FOR RELEASE OF FLUID PRESSURE FORM ONE CHAMBER, THE OTHER OF SAID SECOND PAIR OF FLUID PRESSURE PASSAGE MEANS PROVIDING FOR RELEASE OF PRESSURE FROM THE OTHER CHAMBER, SAID SECOND PAIR OF PASSAGE MEANS OPENING TO THE PERIPHERY OF SAID OUTPUT SHAFT WITH THEIR OPEN ENDS IN SPACED RELATION, AN INPUT SHAFT MOUNTED FOR MOVEMENT IN ONE OF AN AXIAL MOVEMENT OR A ROTARY MOVEMENT AND IN AXIAL ALIGNMENT WITH SAID OUTPUT SHAFT, A PLATE MOUNTED ON SAID INPUT SHAFT CLOSELY ADJACENT SAID OUTPUT SHAFT, THE EDGES OF SAID PLATE EXTENDING AT AN ACUTE ANGLE TO THE AXIS OF THE OUTPUT SHAFT, THE EDGES OF SAID PLATE BEING SPACED APART A DISTANCE LESS THANT THE DISTANCE BETWEEN THE MOST DISTANT MEANS, OF THE OPEN ENDS OF SAID SECOND PAIR OF PASSAGE MEANS, SAID EDGES BEING SPACED APART A DISTANCE GREATER THAN THE DISTANCE BETWEEN THE CLOSEST PORTIONS OF THE SECOND PASSAGE MEANS, WHEREBY MOVEMENT OF THE INPUT SHAFT IN ONE OF THE AXIAL OR ROTARY MOVEMENTS WILL CAUSE THE SECOND PASSAGE MEANS TO BE PARTIALLY CLOSED FROM THE CHAMBERS THEREBY CONTROLLING THE FLOW OF FLUID FROM THE CHAMBERS THERBY CONTROLLING THE DIFFERENTIAL PRESSURE BETWEEN BOTH CHAMBERS CONTINUOUSLY AND LINERARLY ACCORDING TO THE AMOUNT OF RELATIVE DISPLACEMENTS BETWEEN THE PLATE AND THE OUTPUT SHAFT TO CAUSE THE MOTION OF THE PISTON AND THE OUTPUT SHAFT IN THE OTHER DIRECTION OF SAID AN AXIAL MOVEMENT AND A ROTARY MOVEMENT WHEREBY A MINUMUM CONTROL FORCE ON SAID INPUT SHAFT WILL BE CHANGED TO A SUBSTANTIAL FORCE ON SAID OUTPUT SHFT CORRESPONDING TO THE CONTROL MOVEMENT OF SAID INPUT SHAFT.