Type holder, printing type and printing wheel incorporating them

Details Type holder, printing type and printing wheel incorporating them Type holder, printing type and printing wheel incorporating them

1989-01-27

1990-06-12

Burr, Edgar S.

Printing

Printing members

Plate mountings

400 29, 400172, B41F 2702

Patent

active

049323237

ABSTRACT:
Printing type holder, comprising a rotary drive spindle, a support coaxial with the spindle, which is integral in rotation therewith and has at least one cylindrical part with an outer lateral surface, cavities provided on the outer lateral surface, permanent magnets respectively engaged in the cavities, polar members of soft magnetic material which are provided on either side of each permanent magnet, which extend along generatrices of the support and which define between them the cavities in the form of channels extending parallel to the spindle.

REFERENCES:
patent: 3086461 (1963-04-01), Gill
patent: 3157264 (1964-11-01), Frechette
patent: 3786386 (1974-01-01), Cardone et al.
patent: 4453468 (1984-06-01), Shenoha

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