Dry shaver having two independent shearing means with means to drive each shearing means separately

Claim 1

A DRY SHAVER COMPRISING A CASING, AN ELECTRIC DRIVING MOTOR MOUNTED IN SAID CASING HAVING A DRIVE SHAFT, SAID MOTOR BEING CAPABLE OF ROTATING SAID DRIVE SHAFT IN BOTH DIRECTIONS OF ROTATION, A FIRST MEMBER WITH OPENINGS FOR RECEIVING HAIR FOR CUTTING A FIRST CUTTER MOUNTED FOR SLIDING MOVEMENT IN SAID CASING ADJACENT SAID FIRST MEMBER FOR CUTTING THE HAIR PRESENTED THROUGH THE OPENINGS THEREOF, A SECOND MEMBER WITH OPENINGS FOR RECEIVING HAIR FOR CUTTING, A SECOND CUTTER MOUNTED FOR SLIDING MOVEMENT IN SAID CASING ADJACENT SAID SECOND MEMBER FOR CUTTING THE HAIR PRESENTED THROUGH THE OPENINGS THEREOF, A COUPLING MOUNTED IN SAID CASING AND CONNECTED BETWEEN SAID DRIVE SHAFT AND SAID FIRST AND SECOND MOVABLE CUTTERS, SAID CONPLING INCLUDING FIRST AND SECOND ROTATABLY WHEELS CONNECTED RESPECTIVELY TO SAID FIRST AND SECOND MOVABLE CUTTERS, AND MEANS CARRIED BY SAID SHAFT IN ENGAGEMENT WITH SAID FIRST WHEEL FOR MOVING THE CUTTER UPON ROTATION OF SAID SHAFT IN ONE DIRECTION, AND ENGAGEABLE WITH SAID SECOND WHEEL FOR MOVING SAID SECOND CUTTER UPON ROTATION OF SAID SHAFT IN A SECOND DIRECTION.