Thank you also Ian and Greg - inspirational and some topics to look for!

I am wondering, if anybody has worked along the following lines:

1. You secure each end of the FB paper between two thin rails of metal, PVS or something.

2. Paper is laid around the OUTside of a cylinder/drum/tube of appropriate diameter, one to two feet according to paper format, so the rails allmost reach each other. These are then connected with rubber bands so the paper is only gently stretched. Of course, emulsion side outwards.

3. The cylinder has a central axis and is now placed in a slightly larger halftube, with or without the other half as lid, the axis resting in slits in the end plates of the outer halftube. Developer poured in, and the paper now rotated like a chicken/pig/ox in a grill. Weight of inner drum addjusted to keep it down in the developer even when this is pressed up between paper and outer tube.

4. Additionally, axis at each end can be liftet to get the paper out of developer. And while still slowly rotating, helper or motor, (so developer will not accumulate downwards along the same line across the paper) you can add slight modification to the proces with a cold or warm sponge with water or concentrated developer.

5. Same outfit with appropriate modification for stop, fix, and wash.

Sure will demand some floorspace, with that provided however, would seem to give good control of the proces.

Could, with modifications, be scaled down as well, if someone likes closed tanks.

So, as mrs. Wilberforce says to Alec Guiness in "The Ladykillers": 'That is such a nice thought, I wish someone has expressed it.' Meaning here, this has proberbly been done, have you heard of pro's and con's??