Error correcting typewriter

Details Error correcting typewriter Error correcting typewriter

1977-02-10

1978-08-22

Wright, Jr., Ernest T.

Typewriting machines

Means auxiliary to typewriting function

Means for correcting typing errors

400368, 400466, 400310, 400312, B41J 2916

Patent

active

041085574

ABSTRACT:
An error correction system for a typewriter in which a silent type action with a blank type face is operatively connected and synchronized to initiate a backspace action and elevate and feed an error correction ribbon in advance of the striking of the blank type face against the space wherein an error was printed. Thus, to obliterate an error and type in a correct character, an operator need only perform two operations; depress the error key and the correct character key. Further, in accordance with the invention, the error key may be further depressed to a repeat position whereby a series of characters may be obliterated automatically.

REFERENCES:
patent: 3204746 (1965-09-01), Wolowitz
patent: 3724633 (1973-04-01), Korb et al.
patent: 3729081 (1973-04-01), Ozimek et al.
patent: 3780846 (1973-12-01), Kolpek et al.
patent: 3788442 (1974-01-01), Lehnhardt et al.
patent: 3799316 (1974-03-01), Davidge et al.
patent: 3862679 (1975-01-01), Ozimek et al.
patent: 3866736 (1975-02-01), Ozimek et al.
patent: 3905465 (1975-09-01), Frechette et al.

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