Web/ribbon path verifier for detecting and identifying errors in

Details Web/ribbon path verifier for detecting and identifying errors in Web/ribbon path verifier for detecting and identifying errors in

1996-11-20

1998-07-14

Mansen, Michael

Advancing material of indeterminate length

Processes

226 12, 226 45, 226 91, 226100, 101228, B65H 2600, B23Q 1500, G03B 156

Patent

active

057791236

ABSTRACT:
A rotational detector is attached to each of the rolls that might be passed over or under as part of a paper web/path. Each of the rotational detectors emits an output signal which indicates whether the roll it is attached to is moving and, if it is moving, the direction it is moving. A comparator compares the output from each of the rotational detectors to path requirement data for the path that the pressman intended to web. The comparator determines whether any mistakes have occurred and if an error has occurred the roll on which the mistake has occurred. The comparator then determines whether any of the mistakes which might have occurred are catastrophic, requiring rewebbing. If there are no catastrophic errors, a controller adjusts the register for any deviations from the intended path that might have occurred during webbing.

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patent: 5088403 (1992-02-01), Shoji et al.
patent: 5307970 (1994-05-01), Shibuya et al.
patent: 5325774 (1994-07-01), Breton et al.
patent: 5386772 (1995-02-01), Tolle et al.
patent: 5542350 (1996-08-01), Theilacker et al.

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