Rotary printing machine

Details Rotary printing machine Rotary printing machine

1979-03-05

1981-07-28

Fisher, J. Reed

Printing

Multicolor

Rotary machines

101182, 101218, 101227, 101246, 101247, B41F 518, B41F 522, B41F 1336, B41F 1340

Patent

active

042804060

ABSTRACT:
A rotary printing machine for printing several colors on continuously fed sheets comprises a cylinder for driving a web disposed at the web inlet in the printing machine and coupled to a speed variator.
A rotary cutting device is disposed downstream of the web driving cylinder, and means are provided for rotating said rotary cutting device at constant speed. The printing machine also comprises a drum provided on its periphery with regularly distributed grippers, normally closed by springs and of which the opening is controlled by fixed opening ramps.
This drum forms a single large-diameter impression cylinder in contact, at different points of its periphery, with the blanket cylinders of the different printing units. This impression cylinder is mounted to rotate about a horizontal and transverse axis on a support frame mounted for horizontal and longitudinal slide, and means are provided for causing the support frame to slide towards and away from the blanket cylinders of the various printing units.

REFERENCES:
patent: 1025258 (1912-05-01), Firm
patent: 1436653 (1922-11-01), Green
patent: 1465386 (1923-08-01), White
patent: 2397053 (1946-03-01), Schneider
patent: 3041966 (1962-07-01), Polglase, Jr.

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