Rotating auger arrangement for pumping processing fluid through a film developing container

Abstract

Film is mounted in a holder in a cassette whose top is closed by a cover having a throughgoing hole provided with a light gate and whose bottom has a similar hole over which is provided an auger carried on an upright shaft passing through the cover of the container. This container is immersed in a vessel containing a bath of treatment liquid with a motor mounted on the cover turning the auger so as rapidly to suck in a quantity of the treatment liquid, circulate it through the container, and force it out the top. During treatment the motor operates to maintain this circulation through the container. After the necessary treatment time has elapsed the motor is reversed to pump out the interior of the container and the container may then be set, after another motor reversal, in another bath for further treatment of the film in the container.

Dependencies are inferred from the claim text.