Rotary offset printing press equipped for flying plate change

Details Rotary offset printing press equipped for flying plate change Rotary offset printing press equipped for flying plate change

1986-03-25

1987-09-29

Fisher, J. Reed

Printing

Multicolor

Rotary machines

101220, B41F 504, B41F 522

Patent

active

046962298

ABSTRACT:
A rotary offset printing press which can be operated either for prime and verso printing or for printing on one side only, with flying plate change in the latter case, is organized so that the common counterpressure roller used with either of the two pairs of printing rollers (plate roller and rubber cloth roller) is used only as a paper feed-out guide during prime and verso printing. The counterpressure cylinder can be shifted to let it assume its normal function in single-side printing. A small shift of the drive gearing makes it possible to use the counterpressure cylinder for one or the other pair of printing rollers selectively while a plate change is performed for the idle pair.

REFERENCES:
patent: 1301072 (1919-04-01), Mascord
patent: 1654058 (1927-12-01), Smith
patent: 3329086 (1967-07-01), Pullen
patent: 4250809 (1981-02-01), Pullen
patent: 4394835 (1983-07-01), Gertsch et al.
patent: 4398464 (1983-08-01), Morbitzer et al.

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