Ink ribbon feeder

Details Ink ribbon feeder Ink ribbon feeder

1980-05-01

1982-12-21

Pieprz, William

Typewriting machines

Including interposed inking device for record-medium

Ribbon-reversing mechanism

B41J 3550

Patent

active

043646808

ABSTRACT:
An ink ribbon feeder having a pair of rotatable ratchet wheels for driving ribbon spools. A control member rockable toward either ratchet wheel carries a ratchet wheel drive member movable on the control member for driving a respective one of the ratchet wheels to which the control member has been rocked. When ribbon from a spool has run out so that ribbon tension prevents further driving of a particular ratchet wheel, the control member rocks toward the other ratchet wheel to bring the ratchet wheel drive member into position to drive the other ratchet wheel and feed the ribbon in a reverse direction.

REFERENCES:
patent: 2122518 (1938-07-01), Deane et al.
patent: 2300755 (1942-11-01), Williams
patent: 2906203 (1959-09-01), Grosse
patent: 2978090 (1961-04-01), Brandt
patent: 3542183 (1970-11-01), Stiffler
patent: 3882989 (1975-05-01), Morelli
patent: 3899065 (1975-08-01), Brignole
patent: 3910399 (1975-10-01), Shimodaira
patent: 3976185 (1976-08-01), Aebi
patent: 4214838 (1980-07-01), Gassowski

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