Motor controlled regulating system

Claim 1

AN ELECTROMECHANICAL CONTROLLER COMPRISING: REVERSIBLE MOTOR MEANS (M) CONNECTABLE TO REGULATOR MEANS FOR QUANTITATIVELY CONTROLLING A FIRST PHYSICAL CONDITION; INPUT CIRCUIT MEANS (30) FOR CONTROLLING SAID MOTOR MEANS; FIRST BRIDGE CIRCUIT MEANS (29) CONNECTED TO SAID INPUT CIRCUIT MEANS, SAID FIRST BRIDGE CIRCUIT MEANS INCLUDING A CIRCUIT ELEMENT (40) QUANTITATIVELY RESPONSIVE TO SAID FIRST PHYSICAL CONDITION; FIRST PRESETTING MEANS (OPPOSITE 39) FOR ADJUSTING THE BALANCE POINT OF SAID FIRST BRIDGE CIRCUIT MEANS, SAID MOTOR MEANS BEING RESPONSIVE TO AN UNBALANCE OF SAID FIRST BRIDGE CIRCUIT MEANS, THE DIRECTION OF ACTION OF SAID MOTOR MEANS BEING DETERMINED BY THE DIRECTION OF SAID UNBALANCE; MEANS (38) CONNECED TO SAID FIRST BRIDGE CIRCUIT MEANS AND DRIVEN BY SAID MOTOR MEANS FOR REBALANCING SAID FIRST BRIDGE CIRCUIT MEANS WHEREBY SAID REGULATOR MEANS IS DISPLACED BY AN AMOUNT DETERMINED BY THE MAGNITUDE OF THE DEVIATION OF SAID FIRST PHYSICAL CONDITION FROM A PREDETERMINED MAGNITUDE ESTABLISHED BY SAID FIRST PRESSETTING MEANS; SECOND BRIDGE CIRCUIT MEANS (4-8; 51-56) CONNECTED TO SAID INPUT CIRUIT MEANS, SAID SECOND BRIDGE CIRCUIT MEANS INCLUDING A CIRCUIT ELEMENT QUANTITATIVELY RESPONSIVE TO A SECOND PHYSICAL CONDITION DIRECTLY RELATED TO QUANTITATIVE CONTROL OF SAID FIRST PHYSICAL CONDITION BY SAID REGULATOR MEANS; SECOND PRESETTING MEANS (9; 56) FOR ADJUSTING THE BALANCE POINT OF SAID SECOND BRIDGE CIRCUIT MEANS, SAID MOTOR MEANS BEING RESPONSIVE TO THE ALGEBRAIC SUM OF THE UNBALANCES OF SAID FIRST AND SECOND BRIDGES CIRCUIT MEANS; AND ASYMMETRICALLY CONDUCTIVE CIRCUIT MEANS (3; 14; 59, 60; 84, 85) INCLUDED IN SAID SECOND BRIDGE CIRCUIT MEANS, SAID ASYMMETRICALLY CONDUCTIVE MEANS CAUSING SAID MOTOR MEANS TO BE RESPONSIVE TO UNBALANCE OF SAID SECOND BRIDGE CIRCUIT MEANS IN ONE DIRECTION AND UNRESPONSIVE TO UNBALANCE THEREOF IN THE OTHER DIRECTION WHEREBY SAID SECOND BRIDGE CIRCUIT MEANS OPERATES TO LIMIT THE OPERATION OS SAID MOTOR MEANS WHEN SAID SECOND PHYSICAL QUANTITY DEVIATES IN A PREDETERMINED DIRECTION BEYOND A LIMIT ESTABLISHED BY SAID SECOND PRESETTING MEANS.