Typewriting machines – Typing by other than type-face or type-die – Character formation by impact
Patent
1978-04-21
1980-08-19
Sewell, Paul T.
Typewriting machines
Typing by other than type-face or type-die
Character formation by impact
101 9305, B41J 312
Patent
active
042181496
ABSTRACT:
A wire printer comprising a wire guide block provided with a plurality of print wires and a wire drive block providing individual electromagnet devices for independently driving the print wires. The wire drive block is installed on a base frame so as to be stationary thereon and the wire quide block is movable over the base frame in a direction transverse to the direction of advance of a paper to be printed on. The print wires are slidably supported and maintained straight by guide members which are mounted on a carriage of the wire guide block. The print wires are not deformed at all, even during printing.
REFERENCES:
patent: 2728289 (1955-12-01), Johnson et al.
patent: 2773443 (1956-12-01), Lambert
patent: 3742846 (1973-07-01), Knappe
patent: 3837460 (1974-09-01), Chida et al.
patent: 4024506 (1977-05-01), Spaargaren
patent: 4077336 (1978-03-01), Talvard
Adams Bruce L.
Burns Robert E.
Kabushiki Kaisha Seikosha
Lobato Emmanuel J.
Sewell Paul T.
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