High speed web processing unit adjustable to variable length doc

Details High speed web processing unit adjustable to variable length doc High speed web processing unit adjustable to variable length doc

1981-06-11

1983-09-27

Christian, Leonard D.

Advancing material of indeterminate length

With material-responsive control means

To regulate longitudinal movement of material

226 40, B65H 2318

Patent

active

044063890

ABSTRACT:
The apparatus is an improved web processor, which operates at a high web speed, and can achieve variable document lengths with only programmable changes. To achieve this result the web processor uses an improved tool and web drive control. The tool control insures that the tool contacts the web once per document length. The web drive control varies the web speed to mate with the tool during impact and then speed up or slows down the web to maintain a constant speed throughout the processing unit.

REFERENCES:
patent: 3312126 (1967-04-01), Hering, Jr.
patent: 3556509 (1971-01-01), Crum
patent: 3768715 (1973-10-01), Tout
patent: 4007866 (1977-02-01), Traise
patent: 4129238 (1978-12-01), Herd

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