Hamlet Davis bridge agraffes/ Reverse crown Steck

[DALE ERWIN]

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 Hey Terry How did it sound?Just curious.
   Dale Erwin


You say "that the board was a reverse crowned board with a positive set d=
ownbearing". Do you know if this configuration was the intent of the desi=
gner & manufacturer? Just curious. I have seen new Steinways with this bo=
ard/bridge configuration, but as far as I know, it was a manufacturing an=
omaly.
 =20
Terry Farrell  =20
  =20
From: DALE ERWIN =20
To: pianotech =20
Sent: Sunday, November 18, 2001 9:48 AM
Subject: Re: Hamlet Davis bridge agraffes/ Reverse crown Steck


Tom and list
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    You know I have been following this thread and it is interesting to m=
e how many makers tried out this idea. I rebuilt a George Steck 6 ft. gra=
nd last year with this arrangement. When I first encountered the piano th=
e sound was absolutely magic. The sustain just floated for what seemed li=
ke forever . The more interesting thing was that the board was a reverse =
crowned board with a positive set downbearing. I mean bearing set pressin=
g in the usual direction.
   A bit more time consuming to string but what a gem. I keep finding all=
 kinds of sound board conditions and configurations which aren't supposed=
 to work that do and others that should that don't! =20
  I have to figure that the weight of the Big  Brass agraffes also contri=
buted to the impedance properties of the board probably a sustain enhanci=
ng dynamic.
 =20
       Ain't life interestin---Dale Erwin----- -----
From: Tom DriscollSent: Sunday, November 18, 2001 6:28 AM
To: pianotech@ptg.org
Subject: Hallet Davis bridge agraffes
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Enclosed photo of Hallet Davis Grand  referenced by Phil Ford in recent
discussion of bridge agraffes. Piano was built in 1890's and bridge syste=
m
is still in good condition.   Photo courtesy of Moody Piano in Marlboro M=
a.
    Tom Driscoll


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