B - Operations – Transporting – 41 – F
Patent
B - Operations, Transporting
41
F
101/76
B41F 5/16 (2006.01) B41F 7/10 (2006.01) B41F 13/44 (2006.01) B41L 15/10 (2006.01) B41M 1/14 (2006.01)
Patent
CA 1123269
ABSTRACT A rotary printing machine for printing several colours on continuously fed sheets comprising 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 comprises also 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 counterpart drum cylinder in contact, at different points of its periphery, with the blanket cylinders of the different printing units. This drum forming counterpart 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.
323144
Johnson & Hicks
Machines Chambon
LandOfFree
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