Plate locking structure for press cylinders

Details Plate locking structure for press cylinders Plate locking structure for press cylinders

1976-12-17

1977-12-06

Burr, Edgar S.

Printing

Flexible-sheet-securing devices

B41F 2706

Patent

active

040610870

ABSTRACT:
Apparatus for printing press cylinders for releasably retaining printing plates. A printing plate locking bar is utilized in conjunction with a base member, the base member being fixed to a press cylinder construction and a locking bar being slidably secured thereto, thus adapted for sliding in a direction transverse to the longitudinal axis of the locking bar. Latching means is provided for releasably latching the locking bar in a particular position for printing plate removal and replacement. Spring means are supplied to spring-tension the printing plate so mounted, once the latching means is unlatched. Additional latching means may be provided for enabling the positive securement of the locking bar relative to such base member, through additional latch structure, where the plate is to be positively locked in its intended taut condition.

REFERENCES:
patent: 2133252 (1938-10-01), Moore et al.
patent: 2229059 (1941-01-01), Ditly et al.
patent: 3103169 (1963-09-01), Taylor
patent: 3237558 (1966-03-01), Fagg, Jr.
patent: 3332346 (1967-07-01), Luehrs
patent: 3696744 (1972-10-01), Etchell
patent: 3750572 (1973-08-01), Etchell et al.
patent: 3896727 (1975-07-01), Ruckdeschel, Jr.
patent: 3994224 (1976-11-01), Hill

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