Photographic developing machine

Details Photographic developing machine Photographic developing machine

1989-02-07

1989-12-19

Mathews, A. A.

354322, 354324, G03D 302, G03D 308

Patent

active

048886084

ABSTRACT:
A machine for developing photographic material such as photographic paper includes a row of tanks for photographic processing fluids, each tank having an exchangeable rack equipped with planar guide elements and transporting rollers for moving the photographic paper through the fluid. Preceding the first tank in the row is an inlet section having feed rollers which are rotated by a free-wheeling drive unit, so that sheets of photographic paper can be inserted between the feed rollers at a fast speed and can then be advanced to the first tank at a slower speed. Following the last tank in the row is a pivotably mounted drying box which can be folded upwardly. Each tank has its own circulating system for the processing fluid therein. Each circulating system includes and exchangeable filter, a conduit system having branches, and a heating member such as a heat exchanger in one of the branches. A covering frame having inwardly oriented drip faces is disposed above the row of tanks.

REFERENCES:
patent: 4104668 (1978-08-01), Laar
patent: 4252429 (1981-02-01), Hope et al.
patent: 4669847 (1987-06-01), Taniguchi et al.
patent: 4673273 (1987-06-01), Yoshimi
patent: 4755843 (1988-07-01), Foley
patent: 4806962 (1989-02-01), Uchida et al.

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