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<DIV><FONT face=Arial size=2>Jon:</FONT></DIV>
<DIV><FONT face=Arial size=2> The question is, why not
screws? Of course, there are other ways, by using various wedges and
clamps to glue the ribs back on. You can use the backposts to attach
a board to. Use wedges between that board or backpost and
the rib. I have used lag bolts to act as clamps by attaching a
board with holes in it, using lag bolts with the head pressing against
a rib. Using a nut threaded on the bolt, you can force the rib
against the soundboard by tightening the nut. You probably would
have to have the lag bolt(s) inserted before attaching the board to
the back posts.</FONT></DIV>
<DIV><FONT face=Arial size=2> I usually use epoxy with a
small, flexible spatula to get the glue in between the sound board and the
ribs. Or, if you have compressed air, you can blow it into the crack, or
use a vacuum to suck it from the other side of the rib. If there's no way
to wedge the rib, use a string clamp by passing a wire through a small hole
drilled into the rib and soundboard. Tie the wire to something on the
other side of the hole, and use a tuning pin clamp. The advantage is that
the hole is very small and unobtrusive, and when the wire is removed, is
almost invisible. You can make tuning pin clamps easily out of scrap
pinblock. Let me know if you have never seen these type of clamps and I'll
try to explain how to make them.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Paul McCloud</FONT></DIV>
<DIV><FONT face=Arial size=2>San Diego</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=mfarrel2@tampabay.rr.com
href="mailto:mfarrel2@tampabay.rr.com">Farrell</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=pianotech@ptg.org
href="mailto:pianotech@ptg.org">Pianotech List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, November 21, 2006 10:13
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Separting ribs on an
upright</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>My first question would be: why is it a problem?
The only problem I can think of is that the rib/panel might buzz (and of
course, the other problem is that the piano is old and worn out and warped and
falling apart and needs a new soundboard, etc., etc.). But if it doesn't buzz,
then it's not a problem (other than the old piano
thing...). </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>If indeed there is any reason to attempt a fix
and you don't want to clamp anything, my recommendation would be to mix up a
small batch of West System epoxy thickened with their #403 Microfibers just
thick enough to stay in place. Clean up with acetone.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Terry Farrell</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>----- Original Message ----- <BR>>
Here's a question for the group. Every now and again I come across
upright <BR>> pianos where one to several of the ribs are starting to
separate from <BR>> soundboard. Is there any easy way to solve this
problem other than rigging <BR>> a clamping system. If not, is there
an easy clamping system? I prefer not <BR>> using screws as a
clamp.<BR>> <BR>> Thanks,<BR>> <BR>> Jon
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