Web registering system for multi-unit presses

Claim 1

IN A MULTI-UNIT WEB PROCESSING MACHINE INCLUDING FIRST AND SECOND ROTARY PROCESSING UNITS FOR ENGAGING AND PROPELLING A WEB AND BETWEEN WHICH THE WEB TRAVELS UNDER TENSION THROUGH AN EXTENDED PATH, AND MEANS FOR DRIVING SAID UNITS IN SYNCHRONISM, EACH OF SAID UNITS NORMALLY HOLDING THE WEB IN NON-SLIPPING RELATION THERETO, SAID FIRST UNIT HAVING AN ELEMENT THEREON THAT REGISTERS CYCLICALLY WITH SUCCESSIVE POINTS ON THE WEB WHICH ARE TO BE MAINTAINED CONTINUALLY IN REGISTER WITH AN ELEMENT ON SAID SECOND UNIT; REGISTER CONTROL MEANS, INCLUDING DRIVEN ROLLER MEANS NON-SLIPPABLY ENGAGING AND PROPELLING THE WEB AT A LOCATION BETWEEN SAID UNITS, FOR SIMULTANEOUSLY AND PROPORTIONALLY ADJUSTING RELATIVE TO THE POSITION AND THE SPEED OF SAID SECOND UNIT BOTH THE LENGTH OF THE PATH AND THE SPEED OF THAT LEAD OF THE WEB WHICH EXTENDS FROM SAID DRIVEN ROLLER MEANS TO SAID SECOND UNITS SO AS TO KEEP THE WEB SUBSTANTIALLY CONSTANTLY IN REGISTER WITH SAID SECOND UNIT IRRESPECTIVE OF THE ACTUAL SPEED OF SAID UNITS, SAID REGISTER CONTROL MEANS FURTHER INCLUDING MEANS FOR DRIVING SAID ROLLER MEANS IN SYNCHRONISM WITH SAID UNITS, AND MEANS FOR VARYING THE SPEED OF SAID ROLLER MEANS RELATIVE TO THE SPEED OF SAID SECOND UNIT; REGISTER CORRECTION MEANS INCLUDING MEANS FOR DETECTING A DEVIATION OF SAID REGISTER POINTS FROM REGISTERING RELATIONSHIP TO SAID ELEMENT ON SAID SECOND UNIT AND MEANS RESPONSIVE TO SAID DETECTING MEANS FOR ACTUATING SAID REGISTER CONTROL MEANS TO THE EXTENT AND IN THE SENSE REQUIRED TO CORRECT SUCH DEVIATION; AND FLOATING ROLLER MEANS YIELDABLY BIASED AGAINST AND POSITIONED BY AND COUNTERBALANCING THE TENSION IN THE WEB LEAD TO SAID DRIVEN ROLLER MEANS FOR MAINTAINING SAID TENSION SUBSTANTIALLY CONSTANT.