Photocopying – Projection printing and copying cameras – Step and repeat
Patent
1983-11-07
1985-07-16
Hix, L. T.
Photocopying
Projection printing and copying cameras
Step and repeat
355 54, 355 77, 355 72, G03B 2758
Patent
active
045292981
ABSTRACT:
In accordance with the present invention a photomasking kit (20) is provided which is useful for exposing photoready copy (12) so as to provide a plurality of like images of the copy (12) on a single master or negative (14). A plate (22) of a non-reproducing color has a plurality of posts (54) or openings (56) along its left (30) and right (32) margins. The photoready copy (12) is mounted to a mounting member (34) which has appropriate openings (56) or posts (54) for engagement with the posts (54) or openings (56) of the plate (22). The mounting member (34) is attached in a desired specific location to the plate (22). Areas of the plate (22) which it is not desired to expose onto the master or negative (14) are shielded. After exposure in this arrangement the mounting member (34) is moved to other positions on the plate (22) while other areas of the plate (22) are shielded and additional exposures of the master or negative (14) are carried out. As a result, a plurality of like images of the photoready copy (12) are produced on the master or negative (14). Alignment is very quick due to the use of the posts (54) and openings (56).
REFERENCES:
patent: 2601804 (1952-07-01), Nineberg
patent: 3436149 (1969-04-01), Wicker
patent: 3639056 (1972-02-01), Gerson
Brown Brian W.
Hix L. T,.
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