Re: foil-covered inner-tubes for large toroids?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Gregory Hunter" <ghunter31014-at-yahoo-dot-com> 

I once covered a car-size inner tube with spray glue
and foil. It was ugly, wrinkly, and lop-sided.

http://hot-streamer-dot-com/greg/bbcsix2.wmv

I hated it, but it worked pretty well. Later, I
covered a 30" vinyl pool ring with paper mache, then
coated it with polyurethane to harden it, then covered
it with strips of foil tape. It turned out much better
looking.

http://hot-streamer-dot-com/greg/torus.htm

Cheers,

--- Tesla list <tesla-at-pupman-dot-com> wrote:

 > Original poster: DRIEBEN-at-midsouth.rr-dot-com
 >
 > Hi all,
 >
 > I've been thinking of an affordabale alternative to
 > a large
 > pofessional spun toroid for a large coil. I've heard
 > of sev-
 > eral ideas, including the chicken wire covered wood
 > and styro
 > foam skeleton frames. I almost certain that my idea
 > is not
 > original, but I was wondering what you guys thought
 > of a
 > large inflated tractor tire inner tube covered in
 > alumi-
 > num foil or tape. Of course it would be imperative
 > that it
 > didn't leak and I know that the small inner tube
 > lined pneumatic
 > tires (wheelbarrels, 2-wheel dollies, ect.) are
 > notorious
 > for slow leaks. My 2-wheel dolly tires always have
 > to be in-
 > flated before use if I haven't used it in a while.
 > Hopefully,
 > tractor tire inner tubes are somewhat more
 > dependable for
 > holding air as I'm sure a farmer wouldn't want to
 > always
 > worry about his tractor tires holding air. Has
 > anybody had
 > experience with this approach at a large toroid?
 >
 > Thanks,
 > David Rieben
 >
 >
 > David Rieben
 >
 >
 >


=====
Gregory R. Hunter

http://hot-streamer-dot-com/greg