Kodak Day-Load tank. (circa 1950's)
This was only for 35-mm. It had two compartments -- the reel and a smaller one for the cassette. The film was attached to the hub of the reel, both compartments were closed and the film wound (hopefully) to follow the spiral grooves. A light trap was closed and the film cut off. With the cassette removed, chemicals could be poured into the smaller compartment.
As there was no way to know if the load had been successful until the film came out, this must have had the potential for some serious disaster! I developed my first rolls of Anscochrome in it and it worked perfectly every time. By the time I got serious about this, I had migrated to Nikor and the Kodak was shelved.
Incidentally, a 1906 Kodak ad bills what is explicitly called a 'daylight' tank. The ad has a guy camped in the woods somewhere peeling out a presumably wet roll of film. On the ground is a wood box with a crank, what appears to be a round metal tank and a couple reels. The ad proclaims that "It's all by daylight, as simple as 'pressing the button', and the experts say that it gives better results than the dark-room method".
Anyone know how this might have worked? From the illustration, I can't make it out.
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