Machine for simultaneously making two printing plates for newspa

Details Machine for simultaneously making two printing plates for newspa Machine for simultaneously making two printing plates for newspa

1997-08-19

1999-03-30

Funk, Stephen R.

Printing

Planographic

Lithographic plate making, and processes of making or using...

1014011, 355 89, 355104, 347262, B41C 105, B41J 2435, G03F 720

Patent

active

058875255

ABSTRACT:
A news-printing 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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