Advancing material of indeterminate length – With material-responsive control means – To position material laterally
Patent
1996-01-11
1997-09-16
Stodola, Daniel P.
Advancing material of indeterminate length
With material-responsive control means
To position material laterally
226 18, B65B 4118, B65H 2332, B65H 4308
Patent
active
056671237
ABSTRACT:
An apparatus for correcting zigzag motion of a longitudinally traveling elongated sheet includes a forward signalling sensor on the travel path of the sheet and a first correction mechanism which is on the downstream side of, and is controlled by an open-loop method according to output signals from, this feed forward sensor to quickly correct the lateral displacement of the sheet. A second correction mechanism on the downstream side is controlled by output signals from a backward signalling sensor disposed further downstream thereto to correct by a closed-loop method the error in the correction effected by the first correction mechanism. If a significant trend of the sheet to move laterally in one direction is detected, parameters in the algorithm used by the first correction mechanism are adjusted.
REFERENCES:
patent: 3225988 (1965-12-01), Drenning
patent: 3467292 (1969-09-01), Alexeff
patent: 3559854 (1971-02-01), McArthur
patent: 3570735 (1971-03-01), Kurz
patent: 3679116 (1972-07-01), Hamlin et al.
patent: 3759457 (1973-09-01), Enes et al.
patent: 5067646 (1991-11-01), Young, Jr. et al.
patent: 5174096 (1992-12-01), Fukuda
patent: 5199351 (1993-04-01), Shibuya et al.
patent: 5308010 (1994-05-01), Hakiel
patent: 5486254 (1996-01-01), Gallagher et al.
Ishida Co. Ltd.
Kaness Matthew A.
Stodola Daniel P.
LandOfFree
Apparatus for correcting zigzag motion of an elongated traveling does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for correcting zigzag motion of an elongated traveling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for correcting zigzag motion of an elongated traveling will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-212623