US 4,303,330 AGranted

Device for processing a photographic film

AssigneeAgfa-Gevaert

InventorsWilfried Hehn, Siegfried Kurths, Werner Sieber, Franz Kocourek

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Abstract

A device for processing a photographic film through a moistening chamber and a drying chamber has a transition zone where a pair of counterpositioned squeegee rollers is located, of which the upper roller contacts an emulsion carrying surface of the film and the lower roller engages the back surface of the film. The film is advanced to the transition zone from the moistening chamber by a pair of transporting rollers rotated with a predetermined speed. The lower squeegee roller is rotated with a speed exceeding the speed of rotation of the transporting rollers so that a predetermined tension is applied only to the back side of the film to avoid a potential damage to the emulsion carrying surface of the film.

Claims10

Dependent claims

A device for processing photographic film of relatively large width and having an emulsion carrying surface and a back surface, comprising a housing including a moistening chamber and a drying chamber;

transporting means located in said moistening chamber and adapted to advance said film toward said drying chamber, said transporting means having a pair of transporting rollers rotated with a predetermined speed;
and a pair of counterpositioned squeegee rollers positioned between said moistening chamber and said drying chamber and adapted to squeeze moisture from said film, said squeegee rollers including an upper idling squeegee roller contacting said emulsion carrying surface and a driven lower squeegee roller contacting said back surface of the film, said lower squeegee roller having a speed of rotation exceeding said predetermined speed to apply a predetermined tension to said back surface of said film.

Dependencies are inferred from the claim text.