Web lateral position control

Details Web lateral position control Web lateral position control

B - Operations, Transporting

32

B

341/47

B32B 27/10 (2006.01) B41F 13/02 (2006.01) B65H 23/032 (2006.01) B65H 39/16 (2006.01)

Patent

CA 1302544

A B S T R A C T A method and apparatus for controlling the lateral position of a moving web of material having a central longitudinally extending web axis extending generally parallel to the direction of movement of the web so as to maintain the central longitudinally extending axis of the web at a substantial constant lateral position relative a fixed longitudinally extending axis associated with a fixed web alignment station based upon the detected longitudinal distance between certain portions of a series of longitudinally spaced apart, substantially identical, generally transversely extending indicia in a longitudinally extending indicia path parallel to the central longitudinal axis of the web.

545641

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