Automatically interchangeable type wheel type printing apparatus

Details Automatically interchangeable type wheel type printing apparatus Automatically interchangeable type wheel type printing apparatus

1990-06-11

1993-03-16

Wiecking, David A.

Typewriting machines

Including type-set-assemblage mounted on carrier and...

Plural type-set-assemblages selectively movable from a...

4001442, 400175, B41J 130

Patent

active

051939231

ABSTRACT:
By the driving of drive means for the vertically moving member of a type wheel in one way and resiliently holding means for the type wheel, the type wheel is moved upwardly to a position suitable for printing with the vertically moving member of the type wheel by pivotal movement, whereafter the resilient holding of the type wheel by the resiliently holding means is released by the driving of the drive means in the other way, whereby only the vertically moving member of the type wheel is contained in a type wheel containing housing, and by the driving of the drive means in one way after the termination of printing, the type wheel is resiliently held on the vertically moving member of the type wheel by the resiliently holding means, whereafter by the driving of the drive means in the other way, the type wheel, with the vertically moving member of the type wheel, is contained in the type wheel containing housing.

REFERENCES:
patent: 4026403 (1977-05-01), Inose et al.
patent: 4289412 (1981-09-01), Dollenmayer
patent: 4307968 (1981-12-01), Habich et al.
patent: 4480932 (1984-11-01), Willcox
patent: 4722621 (1988-02-01), Johnson

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