B - Operations – Transporting – 41 – L
Patent
B - Operations, Transporting
41
L
101/57
B41L 17/18 (2006.01)
Patent
CA 1123267
ABSTRACT OF THE DISCLOSURE A two-color offset printing press having two plate cylin- ders simultaneously engageable with a single blanket cylinder is disclosed. The plate cylinders and the blanket cylinder are rotatably mounted on a printer head fixed to the mainframe of the press. A first set of dampening and inking rollers is mounted on the printer head and engageable with one of the plate cylinders. A second set of dampening and inking rollers, engageable with the other plate cylinder, is mounted on a ball bushing supported car- riage linearly movable to and from the printer head along a pair of parallel rails fixed to the mainframe. Image registry between the two plate cylinders is established by an operator-accessible adjustment mechanism for shifting one of the plate cylinders back and forth along its axis of rotation. An electrical safety inter- lock system precludes operator access to the carriage-associated plate cylinder during predetermined operating modes of the press.
333438
Macrae & Co.
White Consolidated Industries Inc.
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