Photocopying – Contact printing – Plural exposure stations or plural machines
Patent
1990-10-26
1991-10-08
Hayes, Monroe H.
Photocopying
Contact printing
Plural exposure stations or plural machines
355 85, 355 87, G03B 2704
Patent
active
050558757
ABSTRACT:
In the context of a device for producing printing plates comprising a printing down station with a plate table and an associated illuminating means, which station has associated with it a foil receiving means formed preferably constituted by a foil cassette for unprinted foil and preferably at least one receiving cassette for printed foil, in the case of which the foil to be printed onto an unexposed or blank printing plate is able to be taken from a foil receiving means by means of a moving vacuum frame, is able to be moved onto the blank plate on the plate table and after exposure is able to be discharged, preferably into a receiving cassette, a higher throughput rate and a gentle handling of the foils etc. with a high standard of accuracy are possible by the provision of a plurality of vaccuum frames, of which at least two are attached to the periphery of at least one frame carrier, which is able to be turned through the angle between the vacuum frames, such attachment being a points which are offset from each other by the length of the path between the at least one foil receiving device and the plate table.
REFERENCES:
patent: 3409363 (1968-11-01), Matthaes
patent: 3689153 (1972-09-01), Suzuki
patent: 4389117 (1983-06-01), Floyd et al.
Fischer Hermann
Nemcik Jan
Hayes Monroe H.
Krause-Biagosch GmbH
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