Developer apparatus for lithographic plate processing system

Details Developer apparatus for lithographic plate processing system Developer apparatus for lithographic plate processing system

1974-06-06

1976-02-03

Moses, Richard L.

Coating apparatus

With means to apply electrical and/or radiant energy to work...

With electromagnetic and/or electrostatic removal of...

118111, 118120, 354317, G03D 1300

Patent

active

039368530

ABSTRACT:
A lithographic plate processing system includes apparatus for applying developer to the exposed surface of a lithographic plate, apparatus for spreading the developer uniformly over the exposed surface, a developer apparatus, apparatus for washing excess developer from the plate, and apparatus for applying gum arabic to the exposed surface of the plate, and may include apparatus for drying the plate. The developer spreader apparatus comprises a plurality of rectangularly shaped developer members mounted on a subframe for rotation about axes extending perpendicular to the exposed surface of the lithographic plate and positioned to rotate in overlapping circles. The subframe also supports a common drive apparatus for simultaneously rotating all of the developer members. Structure is provided for concurrently oscillating the plate and the developer members supported thereby along a path extending transversely to the direction of movement of the lithographic plate, thereby assuring that the developer is distributed uniformly over the entire exposed surface of the plate. The developer members may comprise either sponges or brushes mounted for engagement with the exposed surface of the lithographic plate.

REFERENCES:
patent: 1171627 (1916-02-01), Muller
patent: 3059560 (1962-10-01), Gutzmer
patent: 3593641 (1971-07-01), Adams et al.
patent: 3608464 (1971-09-01), Harrell et al.
patent: 3621772 (1971-11-01), Bogue
patent: 3625131 (1971-12-01), Puls
patent: 3682078 (1972-08-01), Parker et al.
patent: 3682079 (1972-08-01), Casson
patent: 3719133 (1973-03-01), Haracz
patent: 3752054 (1973-08-01), Scanlan
patent: 3771428 (1973-11-01), Horner et al.

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