Exposure station for a contact printing device

Details Exposure station for a contact printing device Exposure station for a contact printing device

1975-05-27

1977-06-21

Braun, Fred L.

Photocopying

Contact printing

Machine

355117, G03B 2722

Patent

active

040308260

ABSTRACT:
An apparatus for exposing flexible contact originals or negatives to flexible sensitized reproduction media consisting of a rotatable transparent or translucent cylinder, a fluorescent tube located axially therein, a flexible cover member attached thereto at one end with the other end being free and unsupported for manual pulling action, and spring biased return mechanism for drawing the cover member about the periphery of the cylinder. The apparatus has a manually controlled braking system which normally prevents rotation of the cylinder and is manually released by the operator of the apparatus to permit the spring biased return to draw the cover member about the cylinder.

REFERENCES:
patent: 2024678 (1935-12-01), Brunk
patent: 2223341 (1940-12-01), Ernst et al.
patent: 2585519 (1952-02-01), Van Der Grinten
patent: 2653529 (1953-09-01), Stover
patent: 2743653 (1956-05-01), Kennedy et al.

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