Hammer support for rotary printing apparatus

Details Hammer support for rotary printing apparatus Hammer support for rotary printing apparatus

1978-08-03

1980-12-02

Coven, Edward M.

Typewriting machines

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

Including type-faces movable relative to type-face-carrier

4001443, 101 9348, 335274, B41J 310

Patent

active

042368421

ABSTRACT:
A printing apparatus which includes a support for paper and a plurality of printing dies for making impressions on the paper. A reciprocally driven hammer is employed for causing the dies to form the impressions, and the hammer is supported by spring arms which are, in turn, attached to a fixture. This fixture includes an opening freely receiving the hammer whereby the hammer is movable without contact with the fixture. A portion of each spring arm is attached to the hammer at forward and rearward locations, and other portions extend outwardly of the hammer axis whereby the hammer is stabilized at all times. The spring action normally biases the hammer away from the dies, and drive force is imparted in opposition to the spring force as by an electrical coil attached to the hammer and situated within a magnetic field.

REFERENCES:
patent: 2632791 (1953-03-01), Side
patent: 2882461 (1959-04-01), Glassow
patent: 3072045 (1963-01-01), Goin
patent: 3162285 (1964-12-01), Sala
patent: 3335659 (1967-08-01), Schacht et al.
patent: 3351006 (1967-11-01), Belson
patent: 3356199 (1967-12-01), Robinson
patent: 3459126 (1969-08-01), Nyman
patent: 3831729 (1974-08-01), Howard
patent: 3834304 (1974-09-01), Potto

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