Ok, This is weird

Delwin D Fandrich fandrich@pianobuilders.com
Sat, 17 Sep 2005 11:33:19 -0700


 

| -----Original Message-----
| From: pianotech-bounces@ptg.org 
| [mailto:pianotech-bounces@ptg.org] On Behalf Of Susan Kline
| Sent: September 16, 2005 7:38 PM
| To: Pianotech
| Subject: Re: Ok, This is weird
| 
| If the plate of the Henry F. Miller actually did warp (which 
| seems awfully strange) you perhaps can still save the piano by 
| taking a jack plane and removing some of the pinblock in the 
| middle, till the action clears with the glide bolts set conservatively.
| 
| Oh, have FUN ...
| 
| Susan

Actually, no, this is not strange at all. Though the warping would probably have
happened at the time the plate was cast. It is fairly common to find plates
warped across the tuning pin panel as a result of uneven cooling. The usual fix
would be to put a reverse warp in the pattern. It sometimes took a while for
foundries to get this just right but in the meantime the piano makers often went
right on building pianos. 

It is odd to find it blocking the removal of the action, however. Warped plates
look a little weird but they are usually stable. Before condemning either the
piano or the plate I'd want to look for other reasons why the action doesn't
want to come out. Like action glides, a warped keybed, etc. 

Del



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