SV: 1879 Steinway A (jacks)

[David M. Porritt]

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Since I flexed the buckskin of the knuckle I kind of expected=
 that it's height might change a little bit, but I was pleasantly=
 surprised to find that the now softer knuckle didn't really=
 change dimensions and the hammer line was still good.  

dave

__________________________________________
David M. Porritt, RPT
Meadows School of the Arts
Southern Methodist University
Dallas, TX 75275
dporritt@mail.smu.edu


----- Original message ---------------------------------------->
From: Quentin Codevelle <quentin.codevelle@tiscali.fr>
To: pianotech <pianotech@ptg.org>
Received: Wed, 22 Sep 2004 17:12:32 +0200
Subject: SV: 1879 Steinway A (jacks)

Hi David,
 
If the hammer strike line is properly regulated, the upper lever=
 should maintain the height of the hammer right (with the small=
 gap between the jack and the top of the lever)?
So if you moved the knuckle, it is normal that the hammer line=
 did not move, am I right?
To me it would have changed if you had loosen the repetition=
 spring.
Maybe I understood it the wrong way, can someone say if I am=
 right or wrong on this ?
 
Quentin


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