Yeah, I saw that tube in a 50's era popular mechanics book. They called it "Maxwells' Demon". Looks like there are enough drawings to work off on that site, but if you need another set of plans, I can scan the page and send it to you. Seems like you could run it temporarily off one of those crappy 12V tire inflators just to see if it is remotely practical. I don't think it would meet criteria #1 on your list, tho. Best of luck, and keep us posted.
|