Photocopying – Contact printing – Exposing on sensitized printing press plate or cylinder
Patent
1994-05-23
1995-10-17
Wintercorn, Richard A.
Photocopying
Contact printing
Exposing on sensitized printing press plate or cylinder
206455, 355114, 355127, G03B 2704
Patent
active
054595495
ABSTRACT:
A contact printer for printing negatives in rows and columns directly onto photographic paper comprises a flat smooth base plate having a pair of upstanding pins adjacent one side edge. The pins are mounted in slots so as to be adjustable longitudinally of the side edge both in spacing and in distance from the bottom edge. The negatives are placed in rows and columns within an archival preserver sleeve which has holes along one side edge engaged over the pins to locate the sleeve and therefore the negatives on the base plate. Photographic paper is inserted under the sleeve and is located on the base plate by engagement with the pins and by alignment of the bottom edge of the paper with the bottom edge of the base plate. This ensures that the negatives are properly aligned with the paper. A transparent cover plate is also provided to press the negatives onto the paper for exposure of the paper by light directed through the transparent cover plate. Each of the pins has a phosphorescent light source and a similar phosphorescent light source is provided adjacent opposed corners of the plate so that the four corners are visually located in the dark room.
REFERENCES:
patent: 4284349 (1981-08-01), Beasley et al.
patent: 4664511 (1987-05-01), Carlson et al.
patent: 5023659 (1991-06-01), Beasley
Battison Adrian D.
Thrift Murray E.
Wintercorn Richard A.
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