<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; = charset=iso-8859-1"> <META content="MSHTML 5.50.4134.600" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT color=#000080></FONT> </DIV> <BLOCKQUOTE dir=ltr style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000080 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=davidlovepianos@earthlink.net href="mailto:davidlovepianos@earthlink.net">David Love</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> February 04, 2002 12:55 = AM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Springs for the soundboard</DIV> <DIV><BR></DIV> <DIV><FONT size=2>Well I'm just starting to revue the archives and I = notice that everyone is talking about pushing up from the bottom.  But = if the idea is to add tension to the board and the board is already under = downward pressure from the strings, isn't pushing up from the bottom taking = pressure off the board by neutralizing the downward force applied by the strings?   </FONT></DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2>At any rate, it seems that whatever the system it = should be adjustable, something you could ratchet up or down.  To = precalculate the actual amount of additional pressure needed would be difficult, so a = system which allowed you to increase or decrease pressure and listen to the = results would make the most sense to me.</FONT></DIV> <DIV><FONT size=2></FONT><FONT size=2></FONT> </DIV> <DIV><FONT size=2>David Love</FONT></DIV> <DIV><FONT size=2></FONT> </DIV></BLOCKQUOTE> <DIV dir=ltr><FONT size=2>Conceivably a spring could be positioned = either above or below the soundboard panel. Since most of the discussion to date has = involved pianos with collapsed--or collapsing--soundboards, not much thought has = been given to helping them along with this process. The string load seems to = take care of the downforce requirements all by itself. The idea of the = springs has been to either slow down or, perhaps, even reverse the collapsing = process. Consequently most, if not all, of the work done in this area has = involved placing the spring(s) below (or behind) the panel.</FONT></DIV> <DIV dir=ltr><FONT size=2></FONT> </DIV> <DIV dir=ltr><FONT size=2>Again, much has been written on the = subject. Check it out.</FONT></DIV> <DIV dir=ltr><FONT size=2></FONT> </DIV> <DIV dir=ltr><FONT size=2>Del</FONT></DIV></BODY></HTML>