Proofing machine

Details Proofing machine Proofing machine

1987-01-21

1988-01-26

Wintercorn, Richard A.

Photocopying

Contact printing

Fluid pressure retention of carrier and receiver in exposure...

G03B 2720

Patent

active

047213833

ABSTRACT:
There is disclosed in accordance with this invention a proofing machine in which the means for exposing the proof paper comprises a light carriage adapted to be moved by the operator to an open position for loading proof paper and negatives and a closed position where the exposure is initiated and thereafter automatically terminated at the end of the exposure cycle and there is provided means for exposing a plurality of proofs of the same size simultaneously as well as to accommodate proofs of different size comprising a plurality of separate and selectively usable vacuum systems and systems of locator pins.

REFERENCES:
patent: 2139955 (1938-12-01), Huebner
patent: 2638040 (1953-05-01), Murphy
patent: 2692540 (1954-10-01), Bing et al.
patent: 2774289 (1956-12-01), Colins
patent: 3176601 (1965-04-01), Bradley
patent: 3234868 (1966-02-01), Appeldorn et al.
patent: 3545860 (1968-07-01), Hutchins
patent: 3584955 (1971-06-01), Stievenart
patent: 3644039 (1972-02-01), Boyer, III
patent: 3682551 (1972-08-01), Bradley et al.
patent: 4526463 (1985-07-01), Hickey et al.
patent: 4529303 (1985-07-01), Ternes
patent: 4585340 (1986-04-01), Buckingham
patent: 4586978 (1986-05-01), Kondo et al.

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