Printing – Planographic – Dampeners
Patent
1995-05-01
1996-09-03
Fisher, J. Reed
Printing
Planographic
Dampeners
B41F 726, B41F 740
Patent
active
055513387
ABSTRACT:
A drive disengaging device for a seal-type dampening system in an offset lithographic printing press. The disengaging mechanism includes a clutch gear rotationally mounted on a drive shaft and having a clutch bearing securely mounted thereto. The drive shaft incorporates a specified diameter, on which the clutch bearing functions as designed, and a stepped diameter, on which the clutch bearing does not function as designed. Alternate axial positioning of the clutch bearing between the specified diameter and the stepped diameter causes the clutch bearing to function or not function, respectively, as designed. Gear mesh between the clutch gear and the press drive train is maintained when the clutch gear is in either position. Axial positioning of the gear clutch assembly is controlled by the press operator through an actuator assembly. The actuator assembly can be either an axial-type or rotation-type, depending on the press configuration and space restrictions.
REFERENCES:
patent: 3769909 (1973-11-01), Fugman
patent: 4127067 (1978-11-01), Dahlgren et al.
patent: 4553652 (1985-11-01), Fallos
patent: 4796737 (1989-01-01), Tyler
Jakobsen James W.
Wall Robert
Fisher J. Reed
Jakobsen James W.
Varn Products Company Inc.
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