Machine for making printing plates for newspaper printing

Details Machine for making printing plates for newspaper printing Machine for making printing plates for newspaper printing

1999-02-01

2000-01-18

Rutledge, D.

Photocopying

Contact printing

Plural exposure stations or plural machines

355104, 1014631, 1014011, G03B 2704, G03B 2722

Patent

active

060161884

ABSTRACT:
A photoengraving machine of this invention increases photoengraving speed without unduly increasing size or manufacturing costs of a CPT-type photoengraving machine by decreasing waiting time for form plates transferred from a plate feed section. The machine comprises a plate feed section, an exposure section, a plate discharge section, and a development section to make a drawing on a form plate at the exposure section in accordance with a signal output from a computer. The form-plate feed section has a stocker case for storing form plates and a transfer unit set above the stocker case to be vertically movable for transferring form plates along a guide rail. The exposure section has at least two exposure barrels arranged at intervals, a laser-beam scanning head, a first table on a side of each exposure barrel toward the form-plate feed section, and a second table on a development-section side of each exposure barrels. The plate discharge section has a discharge table on an exposure-section side of the development section.

REFERENCES:
patent: 3981583 (1976-09-01), Tsuchida et al.
patent: 4571073 (1986-02-01), Diedrich et al.
patent: 5606172 (1997-02-01), Morita et al.

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