bridge "agraffe"

[Dave Nereson]

----- Original Message ----- 
From: "Delwin D Fandrich" <pianobuilders@olynet.com>
To: "Pianotech" <pianotech@ptg.org>
Sent: Tuesday, September 23, 2003 12:32 PM
Subject: Re: bridge "agraffe"


> 
> ----- Original Message ----- 
> From: "Ron Nossaman" <RNossaman@cox.net>
> To: "Pianotech" <pianotech@ptg.org>
> Sent: September 23, 2003 9:14 AM
> Subject: bridge "agraffe"
> 
> 
> >
> > Here's a photo from John Dewey of something that might just qualify as
> > prior art.
> 
> 
> Great picture, Ron. I remember (vaguely) seeing a patent drawing of
> something like this. It was one of the reasons we did not pursue a patent
> application. I had no idea a piano had actually been built with this thing.
> 
> Del
> 
> 
> _______________________________________________
> pianotech list info: https://www.moypiano.com/resources/#archives
> 
> McPhail (I think) had a similar arrangement in some uprights, on the upper plate bridge.  Each unison had 3 individual rollers, kinda like little sheaves, or pulleys, for each string. That way, the little wheels, instead of the strings, got the friction and cold-working during tuning.   --Dave Nereson, RPT