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US 4,402,263 AGranted
Automatic ink or water quantity adjusting device for printing machine
AssigneeRyobi Ltd.
InventorYoshinori Honkawa
Life of this patent
Estimating the term…
Abstract
A transfer control roller having individually adjustable surface portions is provided between a fountain roller and a succeeding ductor roller. The surface portions can be moved radially inwardly and outwardly to vary the content surface between the fountain roller and respective surface portions, thereby varying the amount of transferred ink or water.
Claims8
In a printing machine of the type wherein a fluid is transferred to a printing means from a fountain roller via at least one other roller, an automatic fluid quantity adjusting device comprising:
- a transfer control roller for transferring said fluid from said fountain roller to said other roller, said transfer control roller comprising movable means having a contact surface, said movable means contacting said fountain roller over said contact surface, said movable means comprising at least one arcuate member having an outer curved surface and being pivotally mounted near one end;
- and
- control means for moving and pivoting said arcuate member to change the amount of said outer curved surface which contacts said fountain roller to change the amount of fluid transferred to said other roller.
Dependencies are inferred from the claim text.