Scanning mechanism for photo-electric line-following devices

Claim 1

IN A MECHANISM FOR SCANNING A LINE BY MEANS OF A PHOTO-ELECTRIC CELL, THE COMBINATION OF A SHAFT, A MOTOR DRIVING SAID SHAFT IN ROTATION, AND HAVING A MOTOR CASING, A TUBULAR CYLINDRICAL CASING PART SECURED TO SAID MOTOR CASING AND ENCLOSING SAID SHAFT, A CARRIER MEMBER WITHIN SAID TUBULAR CASING PART, AN INCLINED MIRROR MOUNTED ON SAID CARRIER MEMBER, AN ECCENTRIC MECHANISM DRIVABLY CONNECTING SAID SHAFT WITH SAID CARRIER MEMBER, A TRANSVERSE BAR DIAMETRICALLY DISPOSED IN SAID TUBULAR CASING PART, MEANS SECURING SAID TRANSVERSE BAR TO SAID CARRIER MEMBER, A RESILIENT BUSHING SECURED TO EACH END OF SAID TRANSVERSE BAR AND MEANS MOUNTING SAID RESILIENT BUSHINGS IN THE SIDE WALLS OF SAID TUBULAR CASING PART, SAID TRANSVERSE BAR AND RESILIENT BUSHINGS OPERATING TO RESTRAIN THE CARRIER MEMBER AGAINST ROTATION SO THAT A SCANNING MOTION OF THE CARRIER MEMBER SUPPORTING THE INCLINED MIRROR IS DERIVED FROM THE ROTATION OF SAID SHAFT, A PHOTOELECTRIC CELL, AND MEANS SUPPORTING SAID PHOTO-ELECTRIC CELL ON THE INNER WALL OF THE TUBULAR CASING PART TO RECEIVE REFLECTED LINE IMAGE FROM SAID INCLINED MIRROR.