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<DIV><FONT face=Verdana color=#0000ff size=2><SPAN =
class=772362901-23082004>Hi
Sarah,</SPAN></FONT></DIV>
<DIV><FONT face=Verdana color=#0000ff size=2><SPAN
class=772362901-23082004></SPAN></FONT> </DIV>
<DIV><FONT face=Verdana color=#0000ff size=2><SPAN =
class=772362901-23082004>With
most hammers, you can sight a strait line along all surfaces. Some =
grands, most
notably Steinways, have(or had- not sure if they still do it) a =
taper that
is not strait. The sheet of felt is manufactured to produce this taper. =
Simply
put, there are three tapers in the sheet, bass, tenor, and treble. I am =
not
computer literate enough to draw it. </SPAN></FONT></DIV>
<DIV><FONT face=Verdana color=#0000ff size=2><SPAN
class=772362901-23082004></SPAN></FONT> </DIV>
<DIV><FONT face=Verdana color=#0000ff size=2><SPAN =
class=772362901-23082004>Ray
Negron</SPAN></FONT></DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT =
face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> =
pianotech-bounces@ptg.org
[mailto:pianotech-bounces@ptg.org]<B>On Behalf Of </B>Sarah
Fox<BR><B>Sent:</B> Sunday, August 22, 2004 11:13 AM<BR><B>To:</B>
Pianotech<BR><B>Subject:</B> Re: SW heresy?<BR></FONT></DIV>
<DIV><FONT face=Arial size=2>.<BR></FONT></DIV>
<DIV><FONT face=Arial size=2>I guess I'm thinking more of the =
linear
proportions in the dimensions of the heads. If I'm not =
mistaken,
you could take a slab of uncut hammers and sight a straight line along =
all
surfaces. Correct? (Ray??) Interestingly, the entire =
keyframe is laid out in straight lines as well, with longer dimensions =
in the
bass and shorter in the treble. Ray explains that the felt in =
the bass
hammers is less dense than in the treble, so that would explain the =
basic form
of the SW curve. With linear dimensions all around, and with
progressively decreasing felt density, combined with increasing =
proportions of
felt with the larger/lower hammers, there would actually be a fall-off =
in the
bass end SW.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV>
<DIV><FONT face=Arial size=2></FONT></DIV><FONT face=Arial
size=2></FONT></DIV>
<DIV><FONT face=Arial size=2>Peace,</FONT></DIV>
<DIV><FONT face=Arial size=2>Sarah</FONT></DIV>
<DIV><FONT face=Arial =
size=2> </DIV></BLOCKQUOTE></FONT></BODY></HTML>