B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
341/41
B65H 23/18 (2006.01) B65H 23/04 (2006.01) B65H 23/182 (2006.01) B65H 23/188 (2006.01) B65H 77/00 (2006.01)
Patent
CA 1310722
A B S T R A C T An apparatus for controlling the phasing of repeat length portions of a moving web to an operating machine at an operating station along the web wherein the operating machine has a repeating operating cycle and is designed to perform the same operation on each repeat length portion of the web pass- ing through the operating station and wherein the web is of the type which is subject to minor variations in the length of the repeat length portions thereof, comprising: register indicia means associated with each repeat length portion of the web positioned at a substantially identical location with- in each repeat length portion of the web for sensing by a register indicia sensing means for indicating the relative position of an associated repeat length portion; register indicia sensing means positioned at a sensing station along the web at a preselected distance of web travel upstream of the operating station for sensing the passage of the register indicia at the sensing station and for providing a register indicia sensing signal indicative thereof; web travel moni- toring means operatively associated with the web for providing a web travel signal indicative of web travel distance; machine reference position sensing means for sensing the occurrence of a cyclically repeating reference position of the operating machine and for providing a machine position reference signal indicative thereof; operating machine movement sensing means for providing a machine movement signal indicative of the relative cyclical machine movement of the operating machine; data processing means for receiving and processing the web register indicia sensing signal, the web travel signal, the machine reference position signal, and the machine movement signal and for generating a control signal for controlling the relative rate of movement between the web and the operating machine based on the processing of signals for placing each repeat length portion of the web in proper registry with the operating machine.
550264
Adolph Coors Company
Ditto James W.
Graphic Packaging Corporation
Marks & Clerk
LandOfFree
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