Web-fed offset rotary printing machine

Details Web-fed offset rotary printing machine Web-fed offset rotary printing machine

1982-08-02

1984-08-28

Burr, Edgar S.

Printing

Rolling contact machines

Rotary

101180, 101DIG21, B41F 506, B41F 1302

Patent

active

044677197

ABSTRACT:
A web-fed offset rotary printing machine is disclosed. First and second satellite printing units are utilized to perform multiple color recto and verso printing. The cylinder diameters and bearer ring diameters of the first satellite unit are capable of being varied with respect to those of the second unit to accurately control paper web tension and hence to accomplish a color registry which is highly accurate. Calibrated underlay sheets are used to adjust the cylinder diameters and thin, hard, flexible bands are secured on the outer peripheries of inner rings to vary the bearer ring diameters.

REFERENCES:
patent: 1284867 (1918-11-01), Bradley et al.
patent: 1395318 (1921-11-01), Warner
patent: 1814806 (1931-07-01), Hormel
patent: 2649734 (1953-08-01), Ras
patent: 4207815 (1980-06-01), Watanabe
patent: 4231559 (1980-11-01), Wescherfelder et al.
Druckmaschinen Nachrichten 63, A publication of Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft.

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