<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD><TITLE>[CAUT] Shank to Hammer weight spreadsheet</TITLE><BASE
href=https://www.moypiano.com/ptg/caut.php/2008-February/025626.html><LINK
href="index.html" rel=Index><LINK
href="mailto:caut%40ptg.org?Subject=%5BCAUT%5D%20Shank%20to%20Hammer%20weight%20spreadsheet&In-Reply-To=mailman.217.1203319899.25980.caut%40ptg.org"
rel=made>
<META content=index,nofollow name=robots>
<META http-equiv=Content-Type content="text/html; charset=iso-8859-1"><LINK
href="025625.html" rel=Previous><LINK href="025631.html" rel=Next>
<META content="MSHTML 6.00.6000.16608" name=GENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff><!--beginarticle--><PRE>Jurgen,</PRE><PRE>Could you tell us what tool they used and also did they support</PRE><PRE>the shank while scraping in any way? Or was it done outside</PRE><PRE>of the action?</PRE><PRE>Jack Houweling</PRE><PRE> </PRE><PRE>Thinner shanks will be more flexible and less stiff, hence they will
have a resonating frequency. I saw techs "smoothing out" the shank
frequencies in the Blüthner factory, They would sort shanks so that
similar sounding ones were together. If one shank stood out, they
could lower its pitch by thinning the shank through judicious scraping.
The pitch could only be adjusted downward.
Jurgen Goering
</PRE></BODY></HTML>