Web length control device for rotary printing press

Claim 1

IN COMBINATION WITH A WEB RECEIVING APPARATUS HAVING DRIVE MEANS, A WEB IN-FEEDING DEVICE ADAPTED TO RELEASE A PREDETERMINED LENGTH OF WEB PER APPARATUS OPERATION REGARDLESS OF CHANGING WEB DEMAND OF THE APPARATUS SAID DEVICE COMPRISING; MEANS FORMING A CONTROL COUPLE ADAPTED TO GRIP THE WEB PASSING THERETHROUGH, MEANS ING MEMBER OPERABLY ASSOCIATED WITH SAID CONTROL COUPLE AND RESPONSIVE TO THE WEB PASSING THERETHROUGH, MEANS FORMING A FEED ROLL COUPLE ADAPTED TO GRIP AND CONTINUOUSLY RELEASE THE WEB FOR ENTRY INTO THE APPARATUS, A VARIABLE SPEED TRANSMISSION HAVING AN INPUT MEMBER AND AN OUTPUT MEMBER AND A CONTROL MEMBER FOR VARYING THE ROTATION RATIO BETWEEN SAID TRANSMISSION INPUT AND TRANSMISSION OUTPUT MEMBERS, SAID DRIVE MEANS AND TRANSMISSION INPUT MEMBER BEING OPERABLY CONNECTED FOR DRIVING SAID TRANSMISSION AND APPARATUS SYNCHRONOUSLY, MOTION TRANSMITTING MEANS CONNECTING SAID TRANSMISSION OUTPUT MEMBER TO SAID FEED ROLL COUPLE FOR CONTROLLING THE WEB RELEASING SPEED THEREOF, AND MEANS FOR COMPARING THE MEASURING MEMBER RESPONSE AND THE OPERATION OF SAID DRIVE MEANS, SAID COMPARING MEANS BEING OPERABLY CONNECTED TO SAID CONTROL MEMBER AND ADAPTED TO ORDER A CHANGE IN SAID CONTROL MEMBER IN RESPONSE TO PREDETERMINED VARIATIONS IN THE COMPARISON.