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RE: Re: torque conv./ inner tubes
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To: tesla@pupman.com
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Subject: RE: Re: torque conv./ inner tubes
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From: "Robert W. Stephens" <rwstephens@headwaters.com>
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Date: Thu, 9 Jan 1997 15:18:42 -0500
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Subscriber: rwstephens@headwaters.com Thu Jan 9 22:21:17 1997
> Date: Tue, 7 Jan 1997 22:25:42 -0700
> From: Tesla List <tesla@poodle.pupman.com>
> To: Tesla-list-subscribers@poodle.pupman.com
> Subject: RE: Re: torque conv./ inner tubes
> Reply-to: tesla@pupman.com
> Subscriber: scottb@aca.ca Tue Jan 7 22:16:14 1997
> Date: Tue, 7 Jan 1997 10:48:37 -0500
> From: scottb@aca.ca
> To: tesla@poodle.pupman.com
> Subject: RE: Re: torque conv./ inner tubes
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> I have run earth mover tractor type inner tubs, car and truck tire inner
> tubes, etc, in the early 1990s.
>
> They work great when covered with aluminum foil.
>
> I had a problem though. With the onset of winter the air in
> the tube contracted in my un-heated lab. The foil then shriveled up on
> the reduced size toroid and permenant wrinkles appeared. Refilling a bit
> actually stressed the Aluminum and it tore in a few places. Finally, I
> don't know what caused this, but I came out one day and the giant 65"
> diameter inner tube was wilted down over the Nemesis coil like a big
> silver condom! I thought this might have been the rubber succumbing to
> the UV/ozone exposure and deterioration along chemical lines took its
> toll, or just a chance punture. I haven't used inner tubes since that
> time.
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> Richard Hull, TCBOR
>
>
> What about filling the inner tube with something other than air, like that
> spray insulation which quickley hardens??
>
That spray foam from the builder's supply place requires contact with air to
cure. Inside a sealed rubber bag like a tire tube it would never harden. If you
could get some of this expanding foam in a two part like epoxy that would be a
terrific idea with a tire tube I think. Durable and light weight!
Just coat with aluminum tape.
rwstephens