Automatic function mechanism for typewriters

Details Automatic function mechanism for typewriters Automatic function mechanism for typewriters

1975-06-23

1976-11-16

Burr, Edgar S.

Textiles: fiber preparation

197151, 197181, B41J 1962, B41J 3302

Patent

active

039918742

ABSTRACT:
A method and mechanism for automatically performing a typewriter function such as backspacing a carriage where the backspace mechanism is actuated upon removal of an insertable and removable ribbon cartridge. Particularly adaptable to correcting typing errors, the present invention will automate the final backspacing operation that is necessary before the correct character is typed and normal typing can be continued. A modified ribbon cartridge containing error correction ribbon carries at least one abutment that engages a backspace coupled actuating mechanism upon removal of the ribbon cartridge. Therefore, automatic backspacing of the typewriter carriage occurs after a modified ribbon cartridge is inserted into the typewriter to perform an error correction operation simply by removing the error correction ribbon cartridge. Although a backspace function has been selected as the most appropriate function for actuation by the modified cartridge, other selected functions may also be actuated by the modified cartridge.

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