Typewriter correction device for correcting in the forward or re

Details Typewriter correction device for correcting in the forward or re Typewriter correction device for correcting in the forward or re

1981-09-02

1985-07-16

Wright, Jr., Ernest T.

Typewriting machines

Means auxiliary to typewriting function

Means for correcting typing errors

400214, 400248, 400311, B41J 3322

Patent

active

045293279

ABSTRACT:
An erasing ribbon is guided by the same vibrator as the typing ribbon behind the lower part of the typing ribbon. An erasing key acts on the back-spacing mechanism of the typewriter and on an element which suppresses the carriage escapement during a correction cycle initiated by any one of the typing keys. The necessary settings are made by a slide which stores the erasing key command. In particular, the slide acts on a lever which varies the stroke of the ribbon vibrator for selecting the erasing ribbon, also on a device which causes the erasing ribbon to advance and on a mechanism which inhibits the escapement during the execution of the correction cycle. The setting slide is then returned to rest by the first typing key operated after the erasing cycle. A correction selection lever acts on the lever which varies the stroke of the ribbon vibrator and selects permanently the erasing ribbon independently of the erasing key for a forward erasing of the characters of one or more words.

REFERENCES:
patent: 1183424 (1916-05-01), Baldwin
patent: 2919781 (1960-01-01), Rix et al.
patent: 3149711 (1964-09-01), Wolowitz
patent: 3154183 (1964-10-01), Wolowitz
patent: 3664478 (1972-05-01), Menicanti et al.
patent: 3799316 (1974-03-01), Davidge et al.
patent: 3882990 (1975-05-01), Genesio
patent: 3934697 (1976-01-01), Kuramochi
patent: 4119385 (1978-10-01), Watanabe et al.
patent: 4247210 (1981-01-01), Kacmarcik et al.

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