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<DIV><FONT face=Arial size=2>Ed,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Spring clamps? I thought they weren't to be
trusted. Did you adjust them somehow to them to make the "spring" evenly
or with less pressure? </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>About clamping pressure, wouldn't spring clamps
increase it?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Barbara Richmond, feeling a little
confused...</FONT></DIV>
<DIV><FONT face=Arial size=2></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=A440A@aol.com href="mailto:A440A@aol.com">A440A@aol.com</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=caut@ptg.org
href="mailto:caut@ptg.org">caut@ptg.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, July 31, 2007 10:08
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [CAUT] Bushing cloth
thickness</DIV>
<DIV><BR></DIV><FONT face=arial,helvetica><FONT face=Geneva color=#000000
size=2 FAMILY="SANSSERIF">Fred asks, <BR>
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FAMILY="SANSSERIF">Do you use cauls different from Spurlock's standard
sizes? I find they require considerably thinner cloth than .053.
<<</FONT><FONT face=Geneva color=#000000 size=2
FAMILY="SANSSERIF"><BR></BLOCKQUOTE></FONT><FONT face=Geneva color=#000000
size=2 FAMILY="SANSSERIF"><BR> For Steinways, I use
the stock felt with spring clamps on the balance rail, and, usually, .162"
cauls on the fronts. For max. longevity, I try to avoid thick glue
and heavy clamping pressure, as I feel that it basically turns the back of the
cloth into an inflexible matrix, leaving less actual cloth to absorb the force
of keys hitting the pins. <BR>I once mixed up some hide glue, very thick, and
began gluing the various felts to wood. I then thinned it down, and
glued the same felts. Then, thinner yet. It appeared that
the thick glue captured more of the felt when pressure was applied,
effectively rendering the "felt" to be thinner while supported by a much
thicker glue/felt base. It also made it more difficult to remove.
<BR>Since I am now rebuilding actions I did 20-25 years ago here at
Vanderbilt, I really enjoy the ease of removing backrail cloth, damper felt,
upstop rails, etc. that I glued with thin hide glue so long ago.
<BR>hope that helps,<BR>regards, <BR><BR><BR><BR><BR><BR>
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FAMILY="SANSSERIF">About humidity effects, It seems like the felt is a
bigger factor, as high humidity yields sluggishness. The idea being that
felt will swell, closing the gap, while the gap becomes wider due to
expansion of the entire key (or button). I guess if there is crushed wood,
though, that would tend to swell in high humidity, also closing the gap
(kind of like what I imagine happens with pinblocks and loose
pins).<BR>Regards,<BR><BR><BR></BLOCKQUOTE></FONT><FONT face=Geneva
color=#000000 size=2 FAMILY="SANSSERIF"><BR><BR></FONT><FONT face=Geneva
color=#000000 size=2 FAMILY="SANSSERIF"><BR><BR><BR><BR>Ed Foote
RPT<BR></FONT><FONT face=Geneva color=#000000 size=2
FAMILY="SANSSERIF"></FONT><BR><BR><BR>**************************************<BR>Get
a sneak peek of the all-new AOL at http://discover.aol.com/memed/aolcom30tour
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