Dampening mechanism for offset rotary printing presses

Details Dampening mechanism for offset rotary printing presses Dampening mechanism for offset rotary printing presses

1988-09-22

1989-10-10

Fisher, J. Reed

Printing

Planographic

Dampeners

101352, B41F 726, B41F 740

Patent

active

048724068

ABSTRACT:
This invention relates to a dampening mechanism for offset rotary printing presses with a supply roller partly immersed in the dampening fluid. Downstream rollers transfer the dampening fluid to the printing plate. At least one of two or more elastic metering rollers selectively interacts with the supply roller for the exact metering of the amount of dampening fluid required, even at different press speeds, two or more metering rollers with different degrees of hardness are used.

REFERENCES:
patent: 3038405 (1962-06-01), Wojciechowski et al.
patent: 3343484 (1967-09-01), Dahlgren
patent: 3744414 (1973-07-01), Krochert et al.
patent: 4351236 (1982-09-01), Beisel et al.

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