Tractor mechanism compensating for paper taper

Details Tractor mechanism compensating for paper taper Tractor mechanism compensating for paper taper

1994-02-17

1995-10-10

Stodola, Daniel P.

Advancing material of indeterminate length

Means to engage longitudinally spaced modifications in material

Pins on flexible belt or chain

4006161, B65H 2020, B41J 1132

Patent

active

054563992

ABSTRACT:
A tractor and a continuous paper feed mechanism using the same which can more accurately convey continuous paper in a forward or reverse paper conveying direction by compensating for an increase or decrease in the width (taper) of the continuous paper due to a change in temperature or humidity. The change in paper width is compensated for by either employing a tractor having a pin belt that can incline relative to the paper conveying direction or by employing a tractor that pivots in accordance with the change in paper width to incline the pin belt.

REFERENCES:
patent: 4469263 (1984-09-01), Seitz
patent: 4475677 (1984-10-01), Rutishauser

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