Apparatus for furnishing electrical signals for torque measurement

Claim 1

APPARATUS FOR FURNISHING ELECTRICAL SIGNALS FOR TORQUE MEASUREMENT, COMPRISING A SHAFT, FIRST AND SECOND WHEELS WHICH ARE SPACED APART ALONG THE SHAFT AND ARE FIXEDLY MOUNTED ON THE SHAFT AND WHICH CONSTITUTE THE ROTORS OF FIRST AND SECOND ELECTRICAL GENERATORS, A RING OF RECTILINEAR TEETH, CO-AXIAL WITH THE SHAFT, ON EACH ROTOR EXTENDING PARALLEL TO THE SHAFT AXIS, EACH TOOTH HAVING A ROOT AND A TIP WHICH IS SPACED FROM THE ROOT IN THE DIRECTION OF THE AXIS OF THE SHAFT AND BEING SO CONSTRUCTED THAT FROM ITS ROOT TO ITS TIP THE THICKNESS, IN THE RADIAL DIRECTION, IS SUBSTANTIALLY CONSTANT AND THE WIDTH, IN THE PERIPHERAL DIRECTION, AT ANY CHOSEN RADIUS IS ALSO SUBSTANTIALLY CONSTANT, FIRST AND SECOND MAGNETS DISPOSED ADJACENT THE FIRST AND SECOND WHEELS, RESPECTIVELY, AND CONSTITUTING THE STATORS OF THE GENERATORS, A FIRST POLE OF EACH MAGNET DISPOSED RADIALLY OUTWARDLY OF THE RING OF TEETH ON THE ASSOCIATED ROTOR, A SECOND POLE OF EACH MAGNET DISPOSED RADIALLY INWARDLY OF THE RING OF TEETH ON THE ASSOCIATED ROTOR AND A WINDING ON EACH MAGNET IN WHICH A SIGNAL VOLTAGE IS INDUCED UPON RELATIVE MOVEMENT BETWEEN SAID ROTOR AND STATOR.