Klarinet Archive - Posting 000562.txt from 2003/09

From: "Karl Krelove" <karlkrelove@-----.net>
Subj: RE: [kl] Barrels with mouthpiece cores
Date: Thu, 18 Sep 2003 22:35:43 -0400

To tell the truth, I never watched. When I had a couple of Buffet barrels
done recently, I think Mike Hammer (my repair guy) used rod rubber he has in
the shop, but when I had barrels lined years ago by another tech I had to
supply the junk mouthpieces as well. Moennig used old mouthpieces that had
chipped facings or were otherwise unplayable. I imagine they turned them
down on a lathe. Enough material has to be removed from the inside of the
barrel to make room for the rubber sleeve. I don't suppose the process is
different from using tube material made for the purpose, except there's a
lot more prep involved in producing the sleeve to the needed dimensions. The
new bore is reamed to the correct size and taper with hand reamers.

I don't think there was any idea of making serious use of the original taper
of the mouthpiece. It was just a way to re-use material. I don't know if
rubber rods were readily available then - if Moennig didn't originate the
technique (late 1960's or so), he was one of only a few who experimented
with it - so re-using mouthpieces may have been the only convenient way. By
1972, when I bought my 10G Bb, the barrels came with factory installed
linings.

I wish I knew more about this. Maybe someone else on the list has actually
watched (or done) the process.

Karl

> -----Original Message-----
> From: GrabnerWG@-----.com]
>
> > It can be VERY hard to see the lining on one that was done at
> the factory - they're much more covert that barrel linings that
> have been retrofitted using mouthpiece cores.>>
>
> Well, you learn something new every day. I had never heard of
> barrels lined in this way. Can you give me more information? What
> was the reason for using a mouthpiece core? Consistency of
> material? Most mouthpiece bores are slightly conical, ending in a
> 15 mm inner diameter. If you took a mouthpiece, cut it, turned in
> down successfully, REVERSED it, and inserted it into a barrel,
> you coukd have a taper that exactly reverses the taper in the
> mouthpiece? Was this the idea? Who did it? Did it catch on?
>
> More info, please.
>
> Walter

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