Washing apparatus for photographic materials

Details Washing apparatus for photographic materials Washing apparatus for photographic materials

1979-07-03

1981-05-19

Hix, L. T.

Cleaning and liquid contact with solids

Apparatus

Sequential work treating receptacles or stations with means...

354328, 354331, 134102, 366166, G03D 304

Patent

active

042681561

ABSTRACT:
A washing apparatus for washing photographic materials is disclosed. The apparatus has an aerator which can be adjusted to supply air and water at varying flow and water pressures and overcomes other problems in print and negative washers of this type. The apparatus comprises a tank for holding photographic materials such as prints and negatives, a plurality of fluid entrance holes at the bottom of the tank and a fluid distribution system connecting the plurality of fluid entrance holes to an inlet outside and adjacent the bottom of the tank. A removable aerator means is provided, adapted to fit into the inlet of the fluid distribution system, the aerator means has a connection to a water supply and a water jet within a tubular housing which has an inside cross sectional area that may be changed to vary the flow of water through the jet. A collar is provided having a first orifice therein mounted for rotation about the tubular housing which has a second orifice therein which upon rotation of the collar matches with the first orifice to permit air to enter the tubular housing and hence the fluid distribution system to mix with water from the water jet.

REFERENCES:
patent: 1526179 (1925-02-01), Parr et al.
patent: 2892394 (1959-06-01), Hixon et al.
patent: 3077155 (1963-02-01), Maddock et al.
patent: 3180243 (1965-04-01), Siskind et al.
patent: 3259049 (1966-07-01), Uithoven
patent: 3657990 (1960-10-01), Wilhelm
patent: 3744395 (1973-07-01), Berchtold
patent: 3816844 (1974-06-01), Pfefer
patent: 4001855 (1977-01-01), Wilhelm

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