Exposure drum for a newspaper print-plate making apparatus

Details Exposure drum for a newspaper print-plate making apparatus Exposure drum for a newspaper print-plate making apparatus

1997-11-10

1999-04-13

Le, N.

Incremental printing of symbolic information

Light or beam marking apparatus or processes

With record receiver or handling means therefor

347262, 346138, 1013891, B41F 2706

Patent

active

058943196

ABSTRACT:
An exposure drum (11) of a CTP newspaper plate-making apparatus has a width (W) which is slightly greater than a vertical measurement (L.sub.1) of one page of a newspaper, a circumference (L) which is slightly greater than a vertical measurement (L.sub.2) of two pages of newspaper, first and second plate-material engaging pins (13a, 13b) spaced from each other on the cylindrical surface of the exposure drum a distance (L.sub.5) which is equal to 1/2 of the circumference (L), second plate-material suction apertures (14a) in the cylindrical surface spaced from the first plate-material engaging pins a distance (L.sub.7) which is slightly smaller than a horizontal measurement (L.sub.4) of two pages of newspaper, first plate-material suction apertures (14a) in the cylindrical surface spaced from the first plate-material engaging pins a distance (L.sub.6) which is slightly smaller than the vertical measurement (L.sub.1) of one page of newspaper, and third plate-material suction apertures (14c) in the cylindrical surface spaced from the first plate-material engaging pins a distance (L.sub.8) which is slightly smaller than the vertical measurement (L.sub.2) of two pages of newspaper.

REFERENCES:
patent: 5400118 (1995-03-01), Simon

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