Cracked Lid

[James Grebe]

On long grands where the lid has been kept mostly in the up position you can 
imagine the stress, over the years it put on the glue joints on the long 
core panels glued together for the lid with only support on one end and the 
other just kind of hanging out there.  It is a wonder that we do not seem 
more of this in anything over 6'.  I do not know if they used any special 
types of joint between the boards or if they were all just edge glued.  Any 
one tore one apart to see.?
Jim

James Grebe
Piano-Forte Tuning & Repair
Creator of Handsome Hardwood Caster Cups
(314) 608-4137
WWW.JamesGrebe.com
1526 Raspberry Lane
Arnold, MO 63010
BECOME WHAT YOU BELIEVE!
pianoman@accessus.net
----- Original Message ----- 
From: "Paul Chick (Earthlink)" <tune4@earthlink.net>
To: "Pianotech@Ptg.Org" <pianotech@ptg.org>
Sent: Wednesday, October 27, 2004 7:05 PM
Subject: Cracked Lid


> List readers:
>
> I inspected a recently refinished mahogany veneered lid for a 1901 
> Steinway
> Grand that is showing cracks through the finish telegraphed from the 
> joints
> of the core material.  There doesn't appear to be any cross banding 
> between
> the core-which looks like oak-and the face veneer.  The cracks are from 
> the
> hinge end and show on both sides of the lid.  The shop is a first rate
> refinishing facility with very talented staff.  No one hs ever seen this
> problem before, and no one remembers seeing the cracks in the lid before
> refinishing.  The stripping process does not use waterbased strippers or
> rinses. The humidity during stripping and finishing was close to 60%, now
> it's about 40%. Has anyone seen this in other lids/pieces from that era? 
> I'd
> appreciate any thoughts or experiences.
>
> Thanks
>
> Paul C
>
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