Typewriting machines – Typing by other than type-face or type-die – Character formation by impact
Patent
1978-03-13
1979-12-25
Sewell, Paul T.
Typewriting machines
Typing by other than type-face or type-die
Character formation by impact
101 9305, B41J 312
Patent
active
041803337
ABSTRACT:
A bearing for a printing head of a matrix printer whose slidable printing pins are guided in guide channels which are provided in a portion of the bearing which is made of a comparatively soft material. The bearing is provided with pin-shaped inserts which adjoin the guide channels and which are made of a comparatively hard material. A printing head comprising a bearing of this kind has a high-wear resistance and can be inexpensively manufactured.
REFERENCES:
patent: 3467232 (1969-09-01), Paige
patent: 3987883 (1976-10-01), Darwin et al.
patent: 3991870 (1976-11-01), McIntosh
patent: 3991871 (1976-11-01), McIntosh
patent: 4009772 (1977-03-01), Glaser et al.
patent: 4046303 (1977-09-01), Reier et al.
Sewell Paul T.
Smith Robert S.
U.S. Philips Corporation
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