Roller shifting device for printing press

Details Roller shifting device for printing press Roller shifting device for printing press

1992-12-01

1993-12-14

Fisher, J. Reed

Printing

Planographic

Dampeners

B41F 726, B41F 740

Patent

active

052692213

ABSTRACT:
A roller shifting device for a printing press comprises first support means for supporting a form dampening roller for shifting the form dampening roller relative to a surface of a plate on a plate cylinder between a first contacting position and a second released position, second support means for supporting a transfer roller for shifting the transfer roller relative to the form dampening roller between a first contacting position and a second released position, third support means for supporting another roller other than the transfer roller and to be contacted with and released from the form dampening roller for shifting the another roller between a first contacting position and a second released position, means for cooperating the first, second and third support means for synchronous shifting between the first and second positions, means for differentiating a shifting stroke and/or direction of the tfirst support means from those of the second and third support means, and actuating means associated with one of the first, second and third means for driving to shift the first, second and third support means in synchronism with each other.

REFERENCES:
patent: 4461208 (1984-07-01), Ghisalberti
patent: 5158017 (1992-10-01), MacConnell

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