Rotatable headlamp assembly

Claim 1

A ROTATABLE LAMP ASSEMBLY FOR A MOTOR VEHICLE COMPRISING, A FRAME ROTATABLY SUPPORTED ON THE VEHICLE, A LAMP FIXTURE ATTACHED TO SAID FRAME, SAID FRAME BEING ADAPTED TO ROTATE A PREDETERMINED ANGULAR DISTANCE BETWEEN TWO POSITIONS, A DRIVE SHAFT, A REVERSIBLE DRIVE MOTOR FOR ROTATING SAID DRIVE SHAFT THROUGH A PREDETERMINED ANGLE GREATER THAN THE ANGLE THROUGH WHICH SAID FRAME ROTATES, MEANS CONNECTING SAID DRIVE MOTOR TO SAID DRIVE SHAFT, MEANS FOR ENERGIZING SAID MOTOR, MEANS FOR DEENERGIZING SAID MOTOR AFTER SAID DRIVE SHAFT HAS ROTATED THROUGH SAID PREDETERMINED ANGLE, A TORQUE SHAFT HAVING END PORTIONS FIXEDLY SECURED TO AND ROTATABLE WITH SAID DRIVE SHAFT AND SAID FRAME FOR TRANSMITTING TORQUE TO SAID FRAME TO ROTATE SAID FRAME BETWEEN SAID TWO POSITIONS, WHEREBY THE UNEQUAL ROTATION OF SAID TORQUE SHAFT END PORTIONS PRODUCES A TORSIONAL WIND-UP OF SAID TORQUE SHAFT WITH A RESULTANT TORQUE LOAD APPLIED TO SAID FRAME TO HOLD SAID FRAME IN EACH OF SAID POSITIONS, AND LOCK MEANS FOR PREVENTING SAID TORQUE SHAFT FROM UNWINDING UNTIL SAID DRIVE MOTOR IS ENERGIZED TO TURN SAID DRIVE SHAFT IN THE REVERSE DIRECTION.