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<DIV><FONT face=Arial size=2>me too</FONT></DIV>
<DIV><FONT face=Arial size=2>Chris Solliday</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=tcoates1@sio.midco.net href="mailto:tcoates1@sio.midco.net">Tim
Coates</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=caut@ptg.org
href="mailto:caut@ptg.org">College and University Technicians</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, February 21, 2008 9:51
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [CAUT] Shank to Hammer
weight spreadsheet</DIV>
<DIV><BR></DIV>Jurgen and Jack,
<DIV><BR class=webkit-block-placeholder></DIV>
<DIV>I have always found that thinning the shank raised the pitch. I
tried yesterday to lower the pitch by thinning the shank and couldn't do it.
The pitch went up every time I thinned a shank. </DIV>
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<DIV>Perhaps Bluthner has a method that is different?</DIV>
<DIV><BR class=webkit-block-placeholder></DIV>
<DIV>Tim Coates</DIV>
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<DIV><BR>
<DIV>
<DIV>On Feb 21, 2008, at 8:06 PM, Jack Houweling wrote:</DIV><BR
class=Apple-interchange-newline>
<BLOCKQUOTE type="cite"><SPAN class=Apple-style-span
style="WORD-SPACING: 0px; FONT: 12px Helvetica; TEXT-TRANSFORM: none; COLOR: rgb(0,0,0); TEXT-INDENT: 0px; WHITE-SPACE: normal; LETTER-SPACING: normal; BORDER-COLLAPSE: separate; orphans: 2; widows: 2; webkit-border-horizontal-spacing: 0px; webkit-border-vertical-spacing: 0px; webkit-text-decorations-in-effect: none; webkit-text-size-adjust: auto; webkit-text-stroke-width: 0"><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
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