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.

Abstract: A funnel comprises a downwardly tapered generally frustoconical shell and a tube extending along the axis of the shell and having an open lower end adjacent the lower outlet of the shell and an upper end above the upper mouth of the shell. The tube is straight and is formed between its ends with a lateral opening. A pair of arms support a sleeve in the center of the shell which embraces the tube, this sleeve being formed with a downwardly extending skirt surrounding the tube at the level of the lateral opening. The tube is limitedly axially displaceable relative to the shell and is provided at its upper end with a handle engageable with the support sleeve and at its lower end with an upwardly tapered valve body sealingly engageable in the outlet of the funnel so as to prevent fluid flow therefrom.