Web lateral position control apparatus and method

Details Web lateral position control apparatus and method Web lateral position control apparatus and method

1986-08-29

1989-12-19

Lall, Parshotam S.

Boots, shoes, and leggings

364560, 364563, 364469, 226 3, 156361, 156495, B65B 4118

Patent

active

048887170

ABSTRACT:
A method and apparatus 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.

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