Print hammer device

Details Print hammer device Print hammer device

1974-10-03

1976-02-03

Burr, Edgar S.

Printing

Selective or progressive

Bed and platen machines

101 9348, B41J 936

Patent

active

039358135

ABSTRACT:
A printing device is constituted by a common rotary printing drum having raised printing type faces; and a printing mechanism including a spring-loaded hammering member pivotal toward and away from the drum, a continuously driven pawled wheel, a spring-loaded rocking member pivotal between operative and inoperative positions, magnetic means for attracting and maintaining the rocking member to and in said inoperative position, a spring-loaded trigger hammer pivoted to the rocking member, an intermittently driven cam member opposed to the rocking member for engaging and disengaging from the rocking member and an engaging member opposed to the trigger hammer for engaging and disengaging from the trigger hammer.

REFERENCES:
patent: 3587456 (1971-06-01), Jaensch
patent: 3623428 (1971-11-01), Imahashi
patent: 3648602 (1972-03-01), Avgerinos
patent: 3673956 (1972-07-01), Huber et al.
patent: 3710713 (1973-01-01), Voegelin
patent: 3804009 (1974-04-01), Blume
patent: 3805695 (1974-04-01), Babler

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