1975-06-30
1978-02-14
Braun, Fred L.
354323, 354331, 354343, G03D 1300
Patent
active
040742989
ABSTRACT:
A photographic processing machine having a rotary drum into which the film being processed is placed, a fluid inlet and outlet so that the film may be treated with a plurality of processing fluids and a tilting mechanism for tilting the drum to drain the used processing fluid therefrom. The fluid outlet for the drum consists of a movable lid for one end of the drum which cooperates with compressible resilient seals to form a fluid tight enclosure at the one end. The fluid is drained by tilting the drum and then moving the lid from its sealing position. The processing drum has an electrical resistance wire wound about its exterior for maintaining the temperature of the fluid in the drum constant.
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patent: 3840214 (1974-10-01), Merz
patent: 3856395 (1974-12-01), Comstock
patent: 3879119 (1975-04-01), Ratowsky
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