Register control mechanism for a webfed printing press

Claim 1

A WEB-FED ROTARY PRINTING PRESS UNIT FOR OFFSET PRINTING COMPRISING: (A) AT LEAST ONE PLATE CYLINDER AND COOPERATING BLANKET CYLINDER SUPPORTED ON COAXIALLY-EXTENDING PARALLEL SHAFTS ROTATABLY SUPPORTED BY SIDE-FRAMES OF THE PRESS UNITS, (B) COOPERATING SPIRAL GEARS KEYED TO THE RESPECTIVE SHAFTS AND SECURED AGAINST LONGITUDINAL MOVEMENT WITH RESPECT TO THE SIDE-FRAMES, (C) A DRIVE SHAFT PARALLEL TO SAID SUPPORTING SHAFT, (D) A SPIRAL GEAR SLIDABLY KEYED TO SAID DRIVE SHAFT AND ADAPTED TO COOPERATE WITH, AND DRIVE, THE SPIRAL GEAR ON THE PLATE CYLINDER SHAFT, (E) THE SHAFT OF THE PLATE CYLINDER BEING ADAPTED TO BE MOVED LONGITUDINALLY WITH RESPECT TO THE SIDE-FRAMES AND THE GEAR KEYED THERETO, (F) AUTOMATIC MEANS ADAPTED TO MOVE THE DRIVE SHAFT SPIRAL GEAR LONGITUDINALLY IN SMALL INCREMENTS OF PREDETERMINED MAGNITUDE ALONG THE DRIVE SHAFT AND THEREBY EFFECTING ROTATION OF THE SPIRAL GEAR KEYED TO THE PLATE CYLINDER SHAFT TO EFFECT CIRCUMFERENTIAL REGISTER ADJUSTMENT, AND (G) AUTOMATIC MEANS FOR MOVING THE PLATE CYLINDER SHAFT LONGITUDINALLY IN SMALL INCREMENTS OF PREDETERMINED MAGNITUDE TO EFFECT LONGITUDINAL REGISTER ADJUSTMENT.