Double surfaced developing tank

Details Double surfaced developing tank Double surfaced developing tank

1979-03-30

1981-03-17

Hartary, Joseph W.

Advancing material of indeterminate length

By intermittent material-mover

Comprising material-moving roll

354338, 226196, 134122P, G03D 308

Patent

active

042563984

ABSTRACT:
A developing tank wherein means is provided to divide the surface of the developer charged into the tank into two separate portions, into one of which the film enters as it enters the developer, and out of the other of which the film leaves as it leaves the developer. Thus the contaminants and exhausted developer accumulating at the point where the film leaves the developer are prevented from directly moving along the surface of the developer to the point where the film enters the developer, and thereby streaking and uneven development are substantially reduced. The dividing means may be combined with a film entry guide plate.

REFERENCES:
patent: 2786401 (1957-03-01), Briggs et al.
patent: 2989914 (1961-06-01), Reick
patent: 3000289 (1961-09-01), Horiuchi
patent: 3388688 (1968-06-01), Stanton
patent: 3468693 (1969-09-01), Hanson
patent: 3678842 (1972-06-01), Reid
patent: 3881329 (1975-05-01), Passler et al.
patent: 4130825 (1978-12-01), Fasano
patent: 4151942 (1979-05-01), Hope et al.

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