Tensionless plate lock-up

Details Tensionless plate lock-up Tensionless plate lock-up

B - Operations, Transporting

41

F

101/118, 101/61

B41F 27/12 (2006.01) B41F 27/06 (2006.01)

Patent

CA 1307421

ABSTRACT This invention relates to a lock-up mechanism for holding thin, flexible litho plates in a lithography press to the surface of the plate roll. The printing cylinder has a longitudinal slot formed in the surface thereof to define at least one undercut locking surface against which both ends of a flexible printing plate are clamped to hold the plate securely against the surface of said cylinder, locking means including a curved outer surface for contacting the ends of the flexible plate and clamping them against said undercut locking surface and spring biassing means disposed in operative compression between said locking element and the bottom of said longitudinal slot to urge said curved outer surface of said locking element outwardly against said undercut locking surface.

583167

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