Printing – Planographic – Multicolor
Patent
1975-11-14
1977-01-04
Burr, Edgar S.
Printing
Planographic
Multicolor
101177, 101183, 101207, 101232, 101350, 101363, B41F 3100, B41F 516
Patent
active
040006913
ABSTRACT:
The circumferential speed of driven ink application rollers is controlled to be less than the circumferential speed of the plate cylinders to which the ink application rollers supply ink and with which it is in friction-transmission connection. Preferably, the speed difference is adjustable, and so arranged that the circumferential speed of the driven ink application roller is less than the plate cylinder, any other driven rollers in the ink train being intermediate between the slowest ink application roller and the plate cylinder and, further, that, in case of sequentially arranged plate cylinders, the relative speeds of the ink application rollers associated with sequential plate cylinders become less, in the direction of web transport, to place frictional loading on the plate cylinders and thus provide for positive engagement of all drive gearing to overcome play therein and improve registration of sequentially printed data.
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Burr Edgar S.
Hirsch Paul J.
Maschinenfabrik Augsburg-Nurnberg AG
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