Rotary sheet offset printing machine

Details Rotary sheet offset printing machine Rotary sheet offset printing machine

1982-03-01

1984-01-03

Eickholt, E. H.

Printing

Rolling contact machines

Rotary

101184, B41F 1324

Patent

active

044236778

ABSTRACT:
To permit double inking of the blanket cylinder (6, 7; 44, 45) of an offset printing machine, in which all the cylinders are the same, and further to permit retrofitting of an existing printing machine, a control unit (C) is connected to the blanket cylinders which are located in movable bearings to engage or disengage the blanket cylinders, in intermittent movement, from a cooperating impression cylinder (8, 9; 46) when a sheet supply apparatus (3, 41) is commanded to feed a sheet only for every other revolution of the printing system, thereby permitting double inking of the blanket cylinder and preventing contact of the inked blanket cylinder with the impression cylinder when no sheet is being fed thereto.

REFERENCES:
patent: 2714351 (1955-08-01), Koch
patent: 3049076 (1962-08-01), Ritzerfeld et al.
patent: 3158092 (1964-11-01), Barthel
patent: 3461798 (1969-08-01), Bulk et al.
patent: 3473468 (1969-10-01), Vandeman et al.
patent: 3785287 (1974-01-01), Dahlgren
patent: 3916790 (1975-11-01), Alix
patent: 3918363 (1975-11-01), Southam
patent: 3946669 (1976-03-01), Johne et al.
patent: 4214526 (1980-07-01), Jeschke
patent: 4222326 (1980-09-01), Mathes et al.
patent: 4369705 (1983-01-01), Gelinas

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