Apparatus for holding a printing plate including a tension rod a

Details Apparatus for holding a printing plate including a tension rod a Apparatus for holding a printing plate including a tension rod a

1999-03-31

2000-04-11

Hilten, John S.

Printing

Flexible-sheet-securing devices

101378, B41F 2712

Patent

active

060476419

ABSTRACT:
A retainer for firmly holding a printing plate on a plate-carrying cylinder by a hook that engages in an elongated gap formed in the cylinder and is fixedly connected to a tension rod guidable rotatably by drive mechanisms so that it is alignable relatively to two limiting directions in accordance with two limit positions. The drive mechanisms include a piston rod that is supported in a longitudinal bore formed in the cylinder, the piston rod carrying a plurality of pistons distributed over the entire length thereof and including a longitudinal conduit selectively suited for supplying pressure medium for positioning the pistons selectively in two extreme positions.

REFERENCES:
patent: 5555807 (1996-09-01), Pollet
patent: 5596928 (1997-01-01), Marmin et al.
patent: 5598780 (1997-02-01), Marmin et al.

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