Bending device for offset printing plates

Details Bending device for offset printing plates Bending device for offset printing plates

1984-11-19

1986-07-08

Crane, Daniel C.

Metal deforming

By use of non-deforming work-gripping clamp and relatively...

Clamp structure constitutes sole initial metal-deforming...

72323, B21D 504

Patent

active

045985685

ABSTRACT:
Bending device for offset printing plates having a support plate formed with a head portion, a respective bending bar pivotally mounted at opposite ends of the head portion for bending respective ends of a printing plate disposed on the head portion, a lowerable down-holder member for holding a printing plate down against the head portion, and a positioning device for bending the printing-plate ends in-register to given printing-plate dimensions, includes adjusting means disposed parallel to the support plate between the opposite ends of the support-plate head portion, the adjusting means being movable into a plane wherein a printing plate is disposed on the head portion, so as to deflect at least part of the printing plate out of the plane.

REFERENCES:
patent: 412254 (1889-10-01), Hastings
patent: 864325 (1907-08-01), McDonald
patent: 1710985 (1929-04-01), Jacobsen
patent: 2190423 (1940-02-01), Henricson
patent: 3677059 (1972-07-01), Miller et al.

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