Automatic speed control device

Claim 1

IN COMBINATION AN AUTOMATIC CONTROL ARRANGEMENT AND AN ENGINE, SAID ARRANGEMENT COMPRISING, A FIRST MEANS DRIVEN BY THE ENGINE, A SECOND MEANS FOR CONTROLLING FUEL FLOW TO THE ENGINE, SAID SECOND MEANS INCLUDING AN ELEMENT BAISED TOWARD A FIRST POSITION, A THIRD MEANS ENERGIZED BY SAID FIRST MEANS AND OPERATIVELY CONNECTED TO SAID ELEMENT FOR MOVEMENT THEREOF AWAY FROM SAID FIRST POSTITION TOWARD A SECOND POSITION, SAID SECOND MEANS PERMITTING A GREATER FUEL FLOW TO THE ENGINE WHEN SAID ELEMENT IS IN SAID SECOND POSITION THAN IN SAID FIRST POSITION; SAID FIRST MEANS COMPRISING AN ALTERNATOR AND A DEVICE FOR MAINTAINING ALTERNATOR OUTPUT VOLTAGE MAGNITUDE REASONABLY UNIFORM AS THE OUTPUT VOLTAGE FREQUENCY VARIES OVER A WIDE RANGE; SAID THIRD MEANS INCLUDING A MECHANICALLY VARIABLE IMPEDANCE ELEMENT; A FOURTH MEANS FOR SELECTIVELY VARYING SAID IMPEDANCE ELEMENT TO OBTAIN A DESIRED ENGINE SPEED SETTING; SAID THIRD MEANS COMPRISING A PORTION WHOSE IMPEDANCE IS A FUNCTION OF FREQUENCY; SAID THIRD MEANS ALSO COMPRISING RECTIFIER MEANS FED BY SAID PORTION AND A D.C. TORQUE MOTOR FED BY SAID RECTIFIER MEANS; SAID TORQUE MOTOR OPERATIVELY CONNECTED TO OPERATE SAID ELEMENT TOWARD SAID SECOND POSITION