Photocopying – Projection printing and copying cameras – With developing
Patent
1980-11-12
1982-12-28
Wintercorn, Richard A.
Photocopying
Projection printing and copying cameras
With developing
355 29, 355 77, G03B 2900
Patent
active
043658903
ABSTRACT:
In a process and apparatus for photographically enlarging an image by advancing unexposed light sensitive material from a roll of such material to an image receiving location, exposing the material at such location to an image, severing the exposed material from the roll and advancing the severed and exposed material through image activating or developing means and image stabilizing means, it is provided that the material is advanced to the image receiving location by feed rollers disposed downstream of such location and is supported at such location in a substantially vertical plane by such feed rollers. The material at the image receiving location is exposed to an enlargement of the image to be reproduced and the exposed material is advanced by the feed rollers from the image receiving location and severed from the roll after being advanced beyond the feed rollers. The severing is effected by the guillotine action of a knife edge displaced in a direction substantially normal to the general plane of the exposed material at the severing location.
REFERENCES:
patent: 3218918 (1965-11-01), Brindley et al.
patent: 3453138 (1969-07-01), Chen et al.
patent: 3875861 (1975-04-01), Stackig
patent: 3987465 (1976-10-01), Sippel
UK Patent Application, GB 2,002,131 A, 6-.
Flocks Karl W.
Neimark Sheridan
Wintercorn Richard A.
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