Converting device

Claim 1

AN ARRANGEMENT FOR CONVERTING VARIABLE ADJUSTING MOVEMENTS BETWEEN TWO ELEMENTS INTO CORRESPONDING PRESSURE VARIATIONS ADAPTED TO BE USED FOR CONTROLLING OR MEASURING PURPOSES, COMPRISING PRESSURE FLUID CIRCULATORY MEANS MAINTAINED UNDER ESSENTIALLY CONSTANT PRESSURE AND INCLUDING A PRESSURE CHAMBER, ELASTIC AND COMPRESSIBLE PRESSURE-RESPONSIVE CONTROL MEANS ARRANGED WITHIN SAID PRESSURE CHAMBER, SAID PRESSURE CHAMBER INCLUDING INLET MEANS AND OUTLET MEANS INTERCONNECTED IN SAID PRESSURE FLUID CIRCULATORY CONTROL MEANS, AND VALVE MEANS ARRANGED AT ONE END OF SAID PRESSURE RESPONSIVE CONTROL MEANS FOR SELECTIVELY VALVING SAID OUTLET MEANS, SAID CONTROL MEANS SELECTIVELY CONTROLLING THE ACTUATION OF SAID VALVE MEANS TO CONTROL THE FLOW OF FLUID THROUGH SAID CIRCULATORY MEANS AND THE PRESSURE WITHIN SAID CHAMBER, AND MEANS FOR SELECTIVELY ACTUATING AND THEREBY SUBJECTING SAID CONTROL MEANS TO DIFFERENT PRE-STRESSES CORRESPONDING TO SAID ADJUSTING MOVEMENTS TO THEREBY CLOSE SAID VALVE MEANS IN THE CIRCULATORY MEANS FOR SUCH LENGTH OF TIME UNTIL THE COUNTERPRESSURE DEVELOPED THEREBY WITHIN SAID CHAMBER AND ACTING ON SAID CONTROL MEANS BUILDS UP TO SUCH AN EXTENT AS TO ATTAIN THE PRE-STRESS OF SAID CONTROL MEANS TO THEREBY EFFECTIVELY ANNUL THE VALVE CLOSING EFFECT OF SAID CONTROL MEANS AND SIMULTANEOUSLY SERVE AS MEASURING MAGNITUDE.