Re: rotary gap: disc with holes?

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

Original poster: "rheidlebaugh by way of Terry Fritz <twftesla-at-qwest-dot-net>" <rheidlebaugh-at-zialink-dot-com>

Wells: If your tests prove valid you can get a  porcelain ceramic disk with
holes from the vacuum section of most chemical catalogs used as a suport in
bell jars. That would be better for long term tests.
   Robert  H

> From: "Tesla list" <tesla-at-pupman-dot-com>
> Date: Sat, 06 Jul 2002 18:30:01 -0600
> To: tesla-at-pupman-dot-com
> Subject: RE: rotary gap: disc with holes?
> Resent-From: tesla-at-pupman-dot-com
> Resent-Date: Sat, 6 Jul 2002 18:41:44 -0600
> 
> Original poster: "terry oxandale by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <toxandale-at-cei-dot-net>
> 
> I'm guessing the trailing side of the holes (arcing gaps) will quickly
> carbon over due to the heat from the arc as the disc interrupts the arc.
> That in itself is not a big problem as the arc should quench itself, but it
> would seem that eventually the traking will take it's toll on the disc. The
> disc probably needs to be fairly thin, and being it's Plexiglass, I would be
> real concerned about it getting soft in the vicinity of the arc. I would
> experiment first with low speed or small diameter first and find out where
> the bugs are going to be.
> 
> -----Original Message-----
> From: Tesla list [mailto:tesla-at-pupman-dot-com]
> Sent: Saturday, July 06, 2002 3:00 PM
> To: tesla-at-pupman-dot-com
> Subject: rotary gap: disc with holes?
> 
> 
> Original poster: "Wells Campbell by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <wellscampbell-at-onebox-dot-com>
> 
> hello,
> 
> has anyone tried building a rotary gap with holes in the disc instead
> of electrodes? I was thinking about it, and it seems that the biggest
> problem would be the wear on the disc by the arc, but an arc it seems
> would wear an insulator less than a conductor, because electrons would
> not actually be entering / exiting the material. The post about phenolic
> discs for grinders got me thinking, with their nice evenly spaced holes,
> etc.
> 
> has anyone tried this type of gap? I.m cobbling together a small one
> now, with plexi, no less, to study if the arc heats the material, etc.
> I'll post results.
> 
> --
> Wells Campbell
> wellscampbell-at-onebox-dot-com - email
> (415) 430-2169 x3756 - voicemail/fax
> 
> 
> 
> 
> 
> 
> 
>