Power output indicating system

Claim 1

AN INSTRUMENT SYSTEM FOR PROVIDING AN INDICATION OF THE HORSEPOWER OUTPUT OF A MOTOR HAVING AN INPUT ELEMENT MENT DISPLACEABLE TO REGULATE THE LEVEL OF POWER INPUT TO THE MOTOR AND AN OUTPUT ELEMENT DISPLACEABLE AS A FUNCTION OF MOTOR SPEED, COMPRISING: AN ELECTRICAL TRANSFER FUNCTION CIRCUIT INCLUDING A NON-LINEAR POTENTIOMETER HAVING A PAIR OF END TERMINALS AND A MOVABLE ARM FOR SIMULATING AT LEAST THE TORQUE AND SPEED OF THE MOTOR; MEANS, INCLUDING A LINKAGE COUPLED BETWEEN SAID MOTOR INPUT ELEMENT AND SAID MOVABLE ARM OF THE POTENTIOMETER, FOR APPLYING A MOTOR INPUT SIGNAL TO SAID ELECTRICAL CIRCUIT; MEANS, INCLUDING A TACHOMETER COUPLED BETWEEN SAID MOTOR OUTPUT ELEMENT AND SAID END TERMINALS OF THE POTENTIOMETER, FOR APPLYING A SPEED SIGNAL TO SAID ELECTRICAL CIRCUIT; AND INDICATING MEANS, COUPLED TO SAID ELECTRICAL CIRCUIT, FOR INDICATING THE HORSEPOWER OUTPUT OF SAID MOTOR AS A FUNCTION OF SAID MOTOR INPUT SIGNAL, SAID SPEED SIGNAL, AND THE CHARACTERISTICS OF SAID ELECTRICAL TRANSFER FUNCTION CIRCUIT.