Electric platen driving device with manual override

Details Electric platen driving device with manual override Electric platen driving device with manual override

1985-07-10

1987-10-06

Burr, Edgar S.

Typewriting machines

For line-spacing by incremental rotation of platen

By electric-power drive

400569, 400551, 74426, B41J 1992

Patent

active

046979433

ABSTRACT:
The present invention relates to a driving device of platen used in printing devices such as typewriters, printers, etc., which is equipped with a motor, a first gear adapted to transmit the output from this motor and provided with notches on part thereof, a second gear which is intermittently driven by continuous rotation of this first gear and a platen driven through this second gear. A pawl holds the platen in place, but allows manual rotation thereof.

REFERENCES:
patent: 1559970 (1925-11-01), Meahl
patent: 3403572 (1968-10-01), Rekewitz
patent: 3828911 (1974-08-01), Soderstrom
patent: 4090410 (1978-05-01), Nakamura

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