Apparatus for sequentially and simultaneously driving plural pai

Details Apparatus for sequentially and simultaneously driving plural pai Apparatus for sequentially and simultaneously driving plural pai

1974-09-11

1977-01-18

Braun, Fred L.

Advancing material of indeterminate length

By orbitally traveling material-engaging surface

With drive means

134 64R, 354321, B65H 1722

Patent

active

040035123

ABSTRACT:
An apparatus for developing elongated photographic films, wherein a processing film is fed through a number of paired film feed rollers which are located along a predetermined film passage over a number of treating baths including at least a developing bath, a fixing bath and a washing bath. The paired film feed rollers are driven sequentially from the preceding pair at suitable time lags for forming loops of draped film in each of the developing fixing and washing baths to effect the whole film processing operations automatically.

REFERENCES:
patent: 2428790 (1947-10-01), Dye et al.
patent: 2853294 (1958-09-01), Woodcock
patent: 3520461 (1970-07-01), Savela
patent: 3785543 (1974-01-01), Lee

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