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<DIV>Dale, forgot to say that I was talking about 3/8. Half inch =
is
okay. Counterbore is then larger. Use the old bolts to =
decide what
to use. Most pianos I see use smaller plate bolts than =
S&S. A
hole saw should work well for the counterbore. </DIV>
<DIV> </DIV>
<DIV>Carl</DIV>
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style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
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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=Erwinspiano@aol.com
href="mailto:Erwinspiano@aol.com">Erwinspiano@aol.com</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A =
title=pianotech@ptg.org
href="mailto:pianotech@ptg.org">pianotech@ptg.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, December 07, 2003 =
1:05
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Plate Suspension--Carl =
Meyer</DIV>
<DIV><BR></DIV>
<DIV>In a message dated 12/7/2003 11:49:37 AM Pacific Standard Time, =
<A
href="mailto:cmpiano@comcast.net">cmpiano@comcast.net</A> =
writes:</DIV>
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style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px =
solid">
<DIV><FONT face=Arial size=2>The hanger bolts I referred to have =
wood type
screw threads on one end and machine threads on the =
other. I'm
more comfortable with the wood screws into the rim. The holes =
need to
be waxed (bees wax) so that a slot cut in the top of the screw =
can be
used to position the plate. You'll need to lock the nut under =
the
plate. I typically use a set screw into the side of the
nut. A brass or chrome cap nut (acorn nut) and washer finishes =
the
job.</FONT></DIV>
<DIV><FONT size=2></FONT><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial size=2>Carl Meyer Ptg assoc<BR>Santa =
Clara,
Ca.</FONT></DIV></BLOCKQUOTE>
<DIV><FONT face="Times New Roman" =
color=#000040> <FONT
size=4> Carl, Refresh my memory on what exactly is a hanger =
bolt.
Ok Draw me a picture this sounds to easy. I'm envisioning a wood =
threaded device, say 3 "of 1/2" thread & then it has another =
half or
part that is, say an 1 to 2 inches long which is a =
machine
thread. The wood threads go all the way into the rim & the machine =
screw
threads extends up thru the plate boss. The nut which has been lock =
tighted to
the threads extends thru the plate. Then you're adjusting the =
hole thing
by turning the top with a screw driver to set plate height & =
when
done the cap nut goes on. So as in the Coleman suspension system the =
amount of
machine thread protruding thru the plate boss can't be any taller than =
the cap
nut. Right? the only problem with this is that on S&S the =
plate
often sits within .050 of the board surface at the perimeter. On =
the
Coleman system I have had the bolt heads thinned to that amount.What =
can be
done here?</FONT></FONT></DIV>
<DIV><FONT face="Times New Roman" color=#000040><FONT =
size=4> Can you
provide me with a source or send me a box with nuts &
washers?</FONT></FONT></DIV>
<DIV><FONT face="Times New Roman" color=#000040 size=4> =
Thanks-- Dale
Erwin</FONT></DIV>
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