Convex Plate

[Farrell]

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I can think of two things to do before you start tearing into it. First, =
if the pinblock has moved more in the middle than at the ends I would =
think you would see some sort of non-linear feature to the top (maybe =
more plate exposed at the very top in the middle?). Second, accurately =
measure from the back to the front of the plate in a half-dozen places =
along the top to try and quantify what is going on. Is the piano more =
flat (pitch) in the middle than in the bass and high treble?

Terry Farrell

----- Original Message -----=20
From: "Dave Davis" <davistunes@yahoo.com>
To: "Pianotech" <pianotech@ptg.org>
Sent: Tuesday, November 04, 2003 4:45 PM
Subject: Convex Plate


> Hi All,
>     I provided a purchase consult today on a 1911
> Ludwig upright.
>     Most items were looking normal for an old wornout
> piano: Pins were moderately snug, no broken strings,
> 1/2 step flat, top of plate bulging toward player....
>     The top of the pinblock is covered with a lovely
> cap that would not look so lovely had I used my
> wonderbar to remove it.  Am I correct in thinking the
> manufacturer did not build the plate with the convex
> feature and that, indeed, the pinblock has moved
> forward?  It reminds me of the Looney Tunes cartoons
> where the water is building up behind the door that is
> bulging wildly, waiting to burst.
>=20
> Dave Davis,Assoc.
> Renton, WA
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