Printing unit of an offset rotary printing machine

Details Printing unit of an offset rotary printing machine Printing unit of an offset rotary printing machine

1985-04-04

1986-11-11

Burr, Edgar S.

Printing

Rolling contact machines

Rotary

101142, 101177, 101178, B41F 702

Patent

active

046215751

ABSTRACT:
A printing unit of an offset rotary printing machine for printing a paper web with an endless impression, the printing unit having two plate cylinders with respective printing plates disposed on half the respective peripheries thereof for providing respective partial prints successively includes at least one blanket cylinder operatively associated with the two plate cylinders, an applicating roller equal in size to that of one of the plate cylinders disposed for simultaneous engagement with both of the plate cylinders, an inking unit and a dampening unit operatively connectible via an inking cylinder with both of the plate cylinders for delivering ink and dampening fluid thereto, a sum of distances starting from a contact location at which successive partial prints provided by the two plate cylinders become united and extending via the at least one blanket cylinder, one of the plate cylinders and the inking cylinder back to the contact location corresponds to a multiple of the periphery of one of the two plate cylinders.

REFERENCES:
patent: 1052473 (1913-02-01), Firm
patent: 1587455 (1926-06-01), Wood
patent: 1930986 (1933-10-01), Shaffner
patent: 2118238 (1938-05-01), Smith
patent: 3834309 (1974-09-01), Zimmer
patent: 4445432 (1984-05-01), Ford, Jr. et al.

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