<HTML><FONT FACE=arial,helvetica><FONT COLOR="#000040" SIZE=3 FAMILY="SERIF" FACE="Times New Roman" LANG="0"><I>In a message dated 5/6/2002 12:17:50 PM Pacific Standard Time, pianobuilders@olynet.com writes:<BR>
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<BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">Subj:<B>Re: Curve on Bridge Bottom </B><BR>
Date:5/6/2002 12:17:50 PM Pacific Standard Time<BR>
From:<A HREF="mailto:pianobuilders@olynet.com">pianobuilders@olynet.com</A></FONT><FONT COLOR="#000040" style="BACKGROUND-COLOR: #ffffff" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0"><BR>
Reply-to:<A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A></FONT><FONT COLOR="#000040" style="BACKGROUND-COLOR: #ffffff" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0"><BR>
To:<A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A></FONT><FONT COLOR="#000040" style="BACKGROUND-COLOR: #ffffff" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0"><BR>
<I>Sent from the Internet </I><BR>
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<BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">----- Original Message ----- <BR>
<B>From:</B> <A HREF="mailto:Erwinspiano@AOL.COM">Erwinspiano@AOL.COM</A></FONT><FONT COLOR="#000040" style="BACKGROUND-COLOR: #ffffff" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR>
<B>To:</B> <A HREF="mailto:pianotech@ptg.org">pianotech@ptg.org</A></FONT><FONT COLOR="#000040" style="BACKGROUND-COLOR: #ffffff" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR>
<B>Sent:</B> May 04, 2002 8:57 AM<BR>
<B>Subject:</B> Re: Curve on Bridge Bottom<BR>
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Richard, Terry<BR>
It doesn't take much to flatten an unsupported rib as it doesn't really take on its maximum stiffness till after it becomes part of the ply wood componet comprising the whole soundboard system at which point the cumulative resistive forces of cross banded woods and compression takes effect.... </FONT><FONT COLOR="#000040" style="BACKGROUND-COLOR: #ffffff" SIZE=3 FAMILY="SERIF" FACE="Times New Roman Greek" LANG="0"><BR>
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<I>Rather depends on the cross-section of the rib, doesn't it? </FONT><FONT COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=3 FAMILY="SERIF" FACE="Times New Roman Greek" LANG="0"><BR>
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</FONT><FONT COLOR="#000040" style="BACKGROUND-COLOR: #ffffff" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0">Del</FONT><FONT COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"><BR>
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</BLOCKQUOTE> Yes, but of course, the stiffening idea of the two componet forces combined was what I was trying to illuminate and the thicker the rib the stiffer the cumulitive effect or perhaps you disagree? Well ,I mean unless were talking 2 by 4s which would cut the boards contribution out of the equation altogether.<BR>
...........Dale>>>>>>>>>><BR>
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