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<DIV><FONT face=Arial size=2>Picture capstan exactly under center of =
gravity of
wippen. The weight supported by the wippen center</FONT></DIV>
<DIV><FONT face=Arial size=2>is zero. If you move the capstan =
closer to
balance rail, some of the weight is shifted to the wippen =
center.</FONT></DIV>
<DIV><FONT face=Arial size=2>Also more of the support from the key =
is shifted
from the key front to the balance rail. The wippen </FONT></DIV>
<DIV><FONT face=Arial size=2>center and balance rail </FONT><FONT =
face=Arial
size=2>are both "grounded". So maybe there's no
contradiction.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>-Mark</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>
<A title=BobDavis88@aol.com
href="mailto:BobDavis88@aol.com">BobDavis88@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, June 22, 2003 =
1:44 AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Virtual =
Capstan</DIV>
<DIV><BR></DIV><FONT face=arial,helvetica><FONT lang=0 =
face=Arial size=2
FAMILY="SANSSERIF">In a message dated 6/21/2003 8:56:08 PM Pacific =
Standard
Time, <A href="mailto:BobDavis88@aol.com">BobDavis88@aol.com</A>
writes:<BR><BR>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px =
solid; MARGIN-RIGHT: 0px"
TYPE="CITE">In order for a pair of magnets to store potential energy =
in the
deformation of the magnetic field, one of them must be mounted =
outside the
moving part of the system; i. e., on the action
frame.<BR></BLOCKQUOTE></FONT><FONT lang=0 =
style="BACKGROUND-COLOR: #ffffff"
face=Arial color=#000000 size=3 =
FAMILY="SANSSERIF"><BR></FONT><FONT lang=0
style="BACKGROUND-COLOR: #ffffff" face=Arial color=#000000 =
size=2
FAMILY="SANSSERIF"><BR>Well, slight correction, I mean energy =
storage that
makes the action lighter. A multiple capstan, solid or virtual, just
distributes the point(s) of application of the force - it doesn't =
lessen the
input force required to move the wippen. The changing gap of the =
magnet just
changes the distribution of the load between the two =
capstans.<BR>Bob</FONT>
</FONT></BLOCKQUOTE></BODY></HTML>