Apparatus for equalizing tension in a ribbon cassette

Details Apparatus for equalizing tension in a ribbon cassette Apparatus for equalizing tension in a ribbon cassette

1976-11-08

1978-04-04

Stoner, Jr., Bruce H.

Advancing material of indeterminate length

Threading device

197151, 197168, 226113, 226118, B65H 1742

Patent

active

040822109

ABSTRACT:
An apparatus for equalizing the tension of a ribbon in a cassette having an exit area and an entrance area between which a first portion of the ribbon is exposed. The apparatus includes a frame for mounting the cassette thereon and a clamp for clamping the first portion to prevent the ribbon from being pulled out of the entrance area. Fingers are employed to grasp the ribbon and pull out a length of the ribbon from the exit area of the cassette, and the internal drive mechanism of the cassette is used to return the length of ribbon back into the cassette through the entrance area upon the release of the clamp. The apparatus is automatically operated for controlling the number of cycles of pulling out the ribbon and returning it to the cassette.

REFERENCES:
patent: 3596818 (1971-08-01), Curtis et al.
patent: 3682363 (1972-08-01), Hull
patent: 3902680 (1975-09-01), Neff
patent: 3973707 (1976-08-01), Pratt et al.

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