On-press printing plate locking system

Details On-press printing plate locking system On-press printing plate locking system

1973-03-16

1978-08-22

Pulfrey, Robert E.

Printing

Flexible-sheet-securing devices

B41F 2712

Patent

active

041080696

ABSTRACT:
A system for locking thin flexible printing plates on to rotary printing press saddles includes securing means positioned along a first longitudinal side edge of such a saddle and a support member rotatably journaled along a second longitudinal side edge of the saddle and biased longitudinally away from the first transverse side. Pins are secured to the support member to register with corresponding openings in such a flexible printing plate. A rotation tool with openings formed along an edge to coact with said register pins is operable to rotate the support member to secure such a flexible printing plate. A locking means is provided to prevent support member rotation when such a flexible printing plate is secured to such a saddle.

REFERENCES:
patent: 2137851 (1938-11-01), Nelson et al.
patent: 2201474 (1940-05-01), Carlson
patent: 2706947 (1955-04-01), Albrecht
patent: 3218970 (1965-11-01), Heimlicher et al.
patent: 3696744 (1972-10-01), Etchell

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