Butterflies! (spreading hammers)

[Carman Gentile]

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My colleagues,

   I hereby present another episode in the continuing saga of how to repair 
butterfly hammers.
     Below is a constructive exchange from our colleagues in 2002.  I also 
have successfully used CA glue in the past to repair a few separated hammer 
felts found in cheap spinets.  Today I encountered a 1949 Poole spinet with 
-26- separated hammer head felts. In this job I removed the action to my 
shop. This time I experimented with HOT MELT GLUE and it works the best of 
any of my remedies so far.  The hot glue is thick enough to not get 
absorbed into the felt and sets up faster than CA glue with no clamping.

Carman Gentile RPT
Redwood Chapter

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----- Original Message -----
From: "C Stewart" <calexste@yahoo.com>
To: <pianotech@ptg.org>
Sent: Thursday, February 14, 2002 3:49 PM
Subject: Butterflies! (spreading hammers)

List,
I'm working on a late 1980's era Baldwin spinet.  It seems to have been 
subjected to some excessive humidity at some point in its life, but is in 
pretty good shape.  Some of the hammers in the bass section have 
butterflied (there are no staples in these hammers).  My question is, short 
of removing the action, is there any efficient way to glue and clamp these 
back together?  (this piano belongs to my sister in-law, and I have limited 
time to work on it).  Preferred glues?
Thanks for any help.
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-Court Stewart

I have applied thick CA, sprayed with kicker, and squish together with 
fingers and hold for five or ten seconds - done. I must admit though, this 
has always been on an older piano. On the ones I have done like this the 
resultant tone seems quite consistent with the unaffected hammers. Although 
what I have done seems to work fine, I do consider it a "quick and dirty" 
method of addressing the problem.

Terry Farrell
   
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