Klarinet Archive - Posting 000682.txt from 2000/02

From: chi chan <lokshing@-----.com>
Subj: Re: [kl] Alternate throat Bb key (was Signature and series 10)
Date: Wed, 16 Feb 2000 19:11:39 -0500

Dear Brent,

I think you ansewered my question. That guy that I mentioned was in arm force.
Does any maker still produce that kind of clarinet?

Wayne

Brent Eresman wrote:

> On: Tue, 15 Feb 2000 09:05:06 -0700
> Richard Bush wrote
>
> >I know of three different mechanisms that attempted to resolve the
> Bb/register key compromise.
> >
> >They are:
> >
> <snip>
> >
> >3) The Stubbins-Kasper (S-K) mechanism that Leblanc offered for a short
> period on both their French instruments and >even on a plastic bodied Vito
> or Normandy, was a different kind of key work. This mechanism used a second
> vent hole
> >below the register key that would open along with the register key to
> supplement the venting for the Bb and clarify its tone. >An arm that
> overrode the linkage between thumb ring and first finger ring canceled out
> and closed the
> >second or auxiliary Bb tone hole when the thumb closed the ring for notes
> in the second register.
>
> I have a LeBlanc Bb clarinet from the early part of the century which has a
> mechanism something like this. I'm not sure exactly how old it is; it was
> used in the Navy during WWII, though, and i suspect it is much older than
> that. This instrument has an arm activated by the throat "A" key which
> closes the register vent and opens a hole about 1-1/2" lower. Is this the
> same mechanism of which you speak?
>
> Brent Eresman
>
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