Process and apparatus for conveying a thin web

Details Process and apparatus for conveying a thin web Process and apparatus for conveying a thin web

B - Operations, Transporting

41

B

242/30, 341/47

B41B 21/32 (2006.01)

Patent

CA 1073881

A B S T R A C T In conveying a thin web such as film or photographic paper, the web is unrolled from a supply mechanism and introduced into guiding devices where it is driven near one of its edges. One edge of the web being continu- ously urged against a lateral guide. The length of web introduced into the guiding devices is metered and recorded, and this data is transmitted to the control circuit of the web drive. The web drive is actuated until the desired length of web introduced between the guiding devices corresponds to the length of web recorded by the control circuit. A slack loop is establish- ed where the web runs out of the guiding device, and the web is wound up on a delivery device.

301025

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