Antibuckling apparatus for lithographic printing plates

Details Antibuckling apparatus for lithographic printing plates Antibuckling apparatus for lithographic printing plates

1981-04-10

1982-12-14

Schwartz, Larry I.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 41, 118642, F26B 2304, F26B 330

Patent

active

043631762

ABSTRACT:
The disclosure concerns an antibuckling apparatus for a lithographic plate or the like which is being cured in a UV post-curing apparatus. A source of UV radiation irradiates one surface of the plate as the plate is moved through a curing chamber along a predetermined path. An upper antibuckling device comprises a first pair of spaced elongated members which extend across the path of the plate and serve as a support for a plurality of upper antibuckling bars disposed between the radiation source and the upper surface of the plate. The antibuckling bars are disposed generally along the path of the plate but obliquely to the direction of the path, whereby the antibuckling bars do not interfere with irradiation of the entire width of the upper surface of the plate. A similar lower antibuckling device may be disposed beneath the plate on the side thereof not being irradiated. A respective pair of plate moving rollers is disposed inside the curing chamber respectively near the entrance and the exit thereto and they also block emission of radiation from the curing chamber.

REFERENCES:
patent: 3340618 (1967-09-01), Bentzman
patent: 3930318 (1976-01-01), Stelter et al.
patent: 3973328 (1976-08-01), Theobald

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