Sheet drive and registering apparatus

Claim 1

MEANS FOR FEEDING AND REGISTERING A SHEET IN TWO DIRECTIONS COMPRISING MEANS DEFINING A SHEET FEED PLANE AND A SHEET REGISTRATION IN THE PATH OF EACH FEED DIRECTION, AN OPPOSED PAIR OF SHEET ENGAGING DRIVE MEMBERS OF CIRCULAR CROSS SECTION YIELDABLY BIASED AGAINST EACH OTHER AND LOCATED ON OPPOSITE SIDES OF THE SHEET FEED PLANE IN FRICTIONAL DRIVING ENGAGEMENT WITH A SHEET RECEIVED THEREBETWEEN, EACH OF SAID SHEET ENGAGING DRIVE MEMBERS FORMING A SHEET BACK-UP MEMBER FOR THE OTHER AND BEING MOUNTED FOR INDEPENDENT ROTATION ON A DIFFERENT ONE OF A PAIR OF MUTUALLY SKEW ROTATIONAL AXES TO IMPART A TRANSLATORY DRIVING MOTION IN A DIFFERENT ONE OF SAID DIRECTIONS TO THE SHEET RECEIVED THEREBETWEEN, REVERSIBLE DRIVE MEANS FOR ROTATING SAID SHEET ENGAGING DRIVE MEMBERS, A PAIR OF COUPLING MEANS EACH COUPLING A DIFFERENT ONE OF SAID SHEET ENGAGING DRIVE MEMBERS TO SAID DRIVING MEANS AND RESPONSIVE TO THE ENGAGEMENT OF THE SHEET WITH A DIFFERNT ONE OF SAID REGISTRATIION SURFACES FOR INTERRUPTING THE ROTATIVE DRIVE SUPPLIED FROM SAID DRIVING MEANS TO THE SHEET ENGAGING DRIVE MEMBER DRIVING THE SHEET AGAINST THE ENGAGED REGISTRATION SURFACE, AND MEANS COUPLED TO AND CONTROLLING THE DIRECTION OF ROTATION OF SAID DRIVE MEANS.