Paper guide for tractor feed printers

Details Paper guide for tractor feed printers Paper guide for tractor feed printers

1989-12-27

1991-09-17

Wiecking, David A.

Typewriting machines

Sheet or web

For feeding web record-medium

400616, 226 92, B41J 1504

Patent

active

050489879

ABSTRACT:
An accessory for use with perforated paper of the type used in electro-mechanical printers having a tractor wheel feed mechanism facilitates inserting the leading edge of a length of paper into the tractor feed mechanism. The paper guide accessory consists of a thin, rectangular sheet of strong, flexible material, preferably made of transparent plastic film such as polyester film, folded over on itself and creased to form a lower, rear half-sheet and a somewhat shorter upper, front half-sheet, thereby forming a pocket between the upper and lower half-sheets. Laterally aligned pairs of circular perforations located near the outer longitudinal edges of the guide, are provided through the thickness dimension of both upper and lower half-sheets. Pairs of perforations are provided at regular longitudinal intervals, and are of the proper size and spacing to register with perforations in paper inserted into the pocket. With the leading lateral edge of a length of perforated computer paper sandwiched between the upper and lower half-sheets of the guide, and the perforations in the guide aligned with the paper perforations, quick and easy insertion of the paper into the tractor feed mechanism is facilitated, while protecting the paper from tearing.

REFERENCES:
patent: 4070223 (1978-01-01), Stalzer
patent: 4545517 (1985-10-01), Olson
patent: 4759484 (1988-07-01), Richter

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