Method and apparatus for positioning a web of material in stepwi

Advancing material of indeterminate length – Processes – Involving plural feeding means

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

226 8, 226 24, 226 44, 226108, 226111, 226115, B65H 2322, B65H 2024

Patent

active

048486302

ABSTRACT:
For accurate positioning of a web of material which is to be transported stepwise by at least first and second feed means through processing stations disposed therebetween, the feed means are controlled by a programmable computer which stores a value representative of the length of the distance to be covered by the web during a transportation step. The tension of the web is measured and the measured value is compared to a reference value stored in the computer. If the actual value deviates from the reference value the drive means of at least one of the web feed means is controlled in such a way that the tension in the web is at least substantially adjusted to the reference value by increasing or reducing the length of the portion of web which in a transportation step is drawn into the processing region between the web feed means.

REFERENCES:
patent: 3525858 (1970-08-01), Thiede et al.
patent: 3561654 (1971-02-01), Greiner
patent: 3613975 (1971-10-01), Knight
patent: 3887122 (1975-06-01), Sommerig
patent: 4264957 (1981-04-01), Pautzke
patent: 4316566 (1982-02-01), Arleth et al.
patent: 4648539 (1987-03-01), Dingerkus

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for positioning a web of material in stepwi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for positioning a web of material in stepwi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for positioning a web of material in stepwi will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-165480

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.