Cartridge for a ribbon for typewriters

Details Cartridge for a ribbon for typewriters Cartridge for a ribbon for typewriters

1984-04-13

1986-11-18

Wright, Jr., Ernest T.

Typewriting machines

Including interposed inking device for record-medium

Package for ribbon facilitating mounting of ribbon on...

400234, 4002351, 400228, B41J 3200

Patent

active

046232737

ABSTRACT:
The cartridge comprises a container (7) of substantially parallelepipedal form with its corners radiused and rounded off. The container is provided with a back (8) having a slot (27) adapted to guide a slide (26) on the ends of which are rotatably mounted a feed spool (22) and a take-up spool (32) on which the ribbon (21) is wound. A spring (36) engaged with a stud (41) on the slide keeps the slide (26) towards the right-hand side of the container with the take-up spool (32) engaged with the pin teeth of a feed roller (42). As the turns of ribbon wound on the take-up spool increase, the slide shifts with the two spools towards the left-hand side of the container in opposition to the action of the spring. The cartridge is mounted removably on a support of the machine which is inclined with respect to the horizontal plane of the machine passing through the printing point in a manner such as to permit visibility of the printed characters.

REFERENCES:
patent: 3520495 (1970-07-01), Sotani
patent: 3528626 (1970-09-01), Bumb, Jr.
patent: 4010839 (1977-03-01), Guerrini et al.
patent: 4299504 (1981-11-01), Benz et al.
patent: 4317636 (1982-03-01), Hume
patent: 4396305 (1983-08-01), Shattuck et al.
patent: 4425046 (1984-01-01), Van Horne et al.
patent: 4502801 (1985-03-01), Hefti et al.
patent: 4538931 (1985-09-01), Nagashima

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