Print mechanism with rockable interposing lever for print hammer

Details Print mechanism with rockable interposing lever for print hammer Print mechanism with rockable interposing lever for print hammer

1975-07-21

1976-07-06

Burr, Edgar S.

Printing

Selective or progressive

Bed and platen machines

197 49, 335238, 101 9348, B41J 910, B41J 926

Patent

active

039675513

ABSTRACT:
A typewriting device comprising a type-carrying drum continuously driven from a drive source, a ratchet wheel continuously driven from said drive source in synchronization with said drum and having a pawl thereon, at least one rocking lever pivoted to a shaft, at least one armature pivoted to said shaft, at least one electromagnet disposed adjacent to said armature adapted to be energized to attract said armature thereto, at least one operation lever supported on a second shaft for rotation about and movement vertically along said second shaft, and at least one hammer lever pivoted to a third shaft for striking said drum to effect a typewriting operation.

REFERENCES:
patent: 3673956 (1972-07-01), Huber et al.
patent: 3795185 (1974-03-01), Shimodaira et al.
patent: 3804009 (1974-04-01), Blume
patent: 3850098 (1974-11-01), Morohashi
patent: 3881412 (1975-05-01), Thevis
IBM Tech. Disc. Bulletin, J. W. Kerr, vol. 9, No. 2, July 1966, pp. 130-132.

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