Film developing apparatus having continuous circulation of devel

Details Film developing apparatus having continuous circulation of devel Film developing apparatus having continuous circulation of devel

1982-09-28

1984-08-21

Mathews, A. A.

Cleaning and liquid contact with solids

Apparatus

Sequential work treating receptacles or stations with means...

354319, 354325, 134 64P, G03D 306

Patent

active

044667221

ABSTRACT:
An apparatus for the development of microfilm passes film successively through different work stations, such as the developer bath, fixing bath, preliminary washing bath, second washing bath and a drying stage. The film moves in a horizontally arranged track with the aid of a motor driven pair of rolls. The apparatus is characterized by a liquid circulation system in which each vessel supplying a liquid station with a liquid and designed as a transport container is equipped with a supply line and a suction line. The suction line moves the liquid to a bath by means of a liquid pump and by way of pressure lines through a heating means. A bath may be associated with each work station. In the bath the liquid is sprayed against the bottom side of the film travelling in the horizontal direction and is returned through a liquid and film guiding body and the supply line into the vessel.

REFERENCES:
patent: 2177706 (1939-11-01), Gage
patent: 3372630 (1968-03-01), Schmidt
patent: 3545364 (1970-12-01), Reedy
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patent: 3688677 (1972-09-01), Frick et al.
patent: 3744394 (1973-07-01), Firth
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patent: 4101919 (1978-07-01), Ammann
patent: 4104668 (1978-08-01), Laar
patent: 4187023 (1980-02-01), Schausberger et al.
patent: 4327988 (1982-05-01), Vanhorebeek et al.

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