Printing head for label printing machine

Details Printing head for label printing machine Printing head for label printing machine

1977-10-17

1979-10-16

Coven, Edward M.

Printing

Selective or progressive

Printing members

101105, B41J 120

Patent

active

041709381

ABSTRACT:
A multi-line printing head for being mounted on a portable label printing machine, or the like: The printing head comprises printing devices and a housing for detachably supporting the printing devices; each printing device comprises: a pair of elongated frames; a plurality of large-diameter rotation wheels pivotally mounted to the upper portions of the frames and carrying stamp belts; an H-shaped member pivotally secured to the lower portions of the frames and being pivotable relative to the frames; the H-shaped member carrying a plurality of small-diameter rotation pieces; stamp belts supported by the rotation wheels and by the rotation pieces; on the opposed inside surfaces of side walls of the housing are formed printing device support means; in one embodiment, those support means comprise vertically extending inwardly projecting ridges which vertically and closely support the H-shaped members of the printing devices; in another embodiment, those support means comprise closely spaced vertically oriented grooves and each printing device H-shaped member supports a ridged fitting plate engageable with one of the grooves; in the latter embodiment, the housing comprises a fixed frame and a movable frame, with the latter supporting the printing devices; in the printing head, the spaces between lines are easily and accurately adjusted.

REFERENCES:
patent: 1346912 (1920-07-01), Pitman
patent: 1724264 (1929-08-01), Anston
patent: 2832284 (1958-04-01), Farlens
patent: 3417689 (1968-12-01), Brethen
patent: 3793951 (1974-02-01), Denley
patent: 3796152 (1974-03-01), Finke et al.
patent: 3968745 (1976-07-01), Hamisch

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