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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=jonpage@attbi.com href="mailto:jonpage@attbi.com">Jon =
Page</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> May 31, 2002 11:01 =
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Accu-just HPs in =
Steinway D
:</DIV>
<DIV><BR></DIV>
<DIV>At 09:55 AM 5/31/2002 -0700, you wrote:<BR><FONT =
color=#000080>string
placement approximately as high as it would be if it passed over the =
original
back bearing bar -- usually 3 to 5 mm above the plate surface through =
the
tenor/treble. They can ride as much as 5 to 7 mm off the plate surface =
in the
bass -- where the vertical hitchpin is most benificial anyway -- =
without
problems. <BR><BR></FONT>Del,<BR>Could the hitch pins be replaced with =
roll
pins or tension pins to eliminate the rear duplex if the plate were to =
be
situated properly for this height?</DIV></BLOCKQUOTE>
<DIV><FONT color=#000080>Sometimes. Some hitchpin holes are drilled at =
a back
angle. Depending on how acute this angle is it may be better to lay out =
a new
hitchpin plane.</FONT></DIV>
<DIV><FONT color=#000080></FONT> </DIV>
<DIV><FONT color=#000080></FONT> </DIV><FONT =
color=#000080></FONT>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000080 2px solid; MARGIN-RIGHT: 0px"><FONT
color=#000080></FONT>
<DIV><BR>Would larger vertical pins be installed or could you use the =
same
size as the original h/p's? The bearing bar in the tenor would have to =
be
ground down.</DIV></BLOCKQUOTE>
<DIV><FONT color=#000080>We typically use two diameters of hitches -- =
3/16"
(approx. 4.75 mm) and 7/32" (approx. 5.5 mm). These are generally larger =
than
the original hitches. In addition to the typical roll pin, we also use =
something
called a groove pin. See pin type 67 at:<BR>
<A
href="http://www.groov-pin.com/pin-type.htm">http://www.groov-pin.com/p=
in-type.htm</A></FONT></DIV>
<DIV><FONT color=#000080>This is the type of pin I designed into the =
Walter 190
plate.</FONT></DIV>
<DIV><FONT color=#000080></FONT> </DIV>
<DIV><FONT color=#000080>If there is a cast bearing bar then, yes, it =
would be
ground down for string clearance. </FONT></DIV>
<DIV><FONT color=#000080></FONT> </DIV>
<DIV><FONT color=#000080>I might mention, though, that we more often =
convert to
vertical hitches just through the bass section where the advantages are =
most
noticable. I'll do most anything to stretch out the backscale length in =
the
bass. In my Chicago class I'll have pictures of a manganese bronze =
casting we've
made for M&H BB plate to lengthen the backscale. Sadly, the piano =
won't be
there.</FONT></DIV>
<DIV><FONT color=#000080></FONT> </DIV>
<DIV><FONT color=#000080>Del</FONT></DIV>
<DIV><FONT color=#000080></FONT><FONT
color=#000080></FONT><BR> </DIV></BODY></HTML>