Conveyor apparatus for processing photographic materials

Details Conveyor apparatus for processing photographic materials Conveyor apparatus for processing photographic materials

1975-10-30

1977-05-31

Schacher, Richard A.

Advancing material of indeterminate length

Threading device

226189, 354320, B65H 1722

Patent

active

040264513

ABSTRACT:
Conveyor apparatus for processing photographic materials is disclosed and more specifically equipment for turnaround during processing of an elongated web of photographic material at the midportion of a processing operation, a plurality of parallel inner and outer driven rollers being employed to receive and direct the web for turnaround, the outer rollers being disposed at spaced locations along the outside of the turnaround path, the inner rollers also being disposed along the inside of the turnaround path and being spaced from and having their axes offset from a radial plane through the outer rollers and the center of the turnaround path, the inner and outer rollers being disposed for advancing the web without pinching of the web and free from contact with fixed guides which tend to scratch or mar the surface being processed, an improved and compact drive being provided particularly for the inner rollers.

REFERENCES:
patent: 3520461 (1970-07-01), Savela
patent: 3779439 (1973-12-01), Fessop
patent: 3785543 (1974-01-01), Lee
patent: 3830419 (1974-08-01), Lee
patent: 3858870 (1975-01-01), Yabe

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