<!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 6.00.2800.1106" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY> <DIV>> Agreed, as in Ron's .jpeg. That doesn't prevent the curved = tenor end <BR>> of the long bridge from showing up in the pianos from famous = makers <BR>> who should know better. <DIV> </DIV> <DIV><FONT color=#008080>Ah yes, but herein lies the nut of the = matter. The hockey stick end of a bridge would only present a complication if one = were trying to glue it to a new board. Regarding the long bridge, who says we = must put back what we take out (unless of course the owner dictates - but I = would argue that might be an indicator of the rebuilder's lack = of salesmanship!)? This is really for the Del F's and Ron N's of the world to comment = on, but I <EM><U>think</U></EM> that most pianos with a hockey stick low tenor = will be improved by rescaling and adding a transition bridge to carry the = last five or so notes that were previously on the low tenor end of the long bridge.</FONT></DIV><FONT color=#008080></FONT></DIV> <DIV><FONT color=#008080></FONT><FONT = color=#008080></FONT> </DIV> <DIV><FONT color=#008080>Terry Farrell</FONT></DIV> <DIV> <SPAN id=__#Ath#SignaturePos__></SPAN> </DIV> <DIV>----- Original Message ----- <DIV>From: "Bill Ballard" <<A href="mailto:yardbird@vermontel.net">yardbird@vermontel.net</A>></DI= V> <DIV>To: "Pianotech" <<A href="mailto:pianotech@ptg.org">pianotech@ptg.org</A>></DIV> <DIV>Sent: Sunday, April 20, 2003 12:06 AM</DIV> <DIV>Subject: Re: Curved Long Bridges</DIV></DIV> <DIV><BR></DIV> <DIV>> Ron, Terry,<BR>> <BR>> Thanks for straightening me = out.<BR>> <BR>> At 10:44 PM -0400 4/19/03, Farrell wrote:<BR>> >What on = earth is an oeile?<BR>> <BR>> As in trompe l'eoile, French for optical illusion.<BR>> <BR>> >Most (I think likely all?) well designed = piano scales do not have <BR>> >any sort of a hockey stick curve at the = tenor end of the long <BR>> >bridge. It gets fairly straight in that = area. The curve to the <BR>> >bridge is in one direction only.<BR>> = <BR>> Agreed, as in Ron's .jpeg. That doesn't prevent the curved tenor end = <BR>> of the long bridge from showing up in the pianos from famous makers = <BR>> who should know better.</DIV> <DIV> <BR>> >Put the pencil under the middle of the arc, and = the mid section of <BR>> >the arc lifts up, but the two ends remain in = contact with the <BR>> >surface of the table or whatever it was laying = on.<BR>> <BR>> Agreed. Transfer an arc created on the surface of a sphere to a = plane <BR>> and it will lay flat.<BR>> <BR>> >>  I just = got finished realizing that any crown in a ribbed board is<BR>> = >>  incidental, and not required for support of the string load.<BR>> ><BR>> >Where did this come from? The crown is usually designed = in, not incidental.<BR>> <BR>> My apologize to you both. I meant to say = "crown parallel to the grain <BR>> of the board".<BR>> <BR>> At 10:03 = PM -0500 4/19/03, Ron Nossaman wrote:<BR>> >You're assessing all this from = the pathological example of your <BR>> >bridge sample. Go through it = again with the picture of the bridge I <BR>> >sent, and it will make = more sense.<BR>> <BR>> Just as you said. The original long bridge used = as a caul/form for my <BR>> lamination went into the wood stove long ago, = so there's now way of <BR>> telling whether my lamination has crept back = straight of the last 25 <BR>> years. But as is, it is still = straighter than this Steinway O long <BR>> bridge which has a curve at each end, in = opposite directions. Which <BR>> begs the question, has anybody rescaled the = Steinway O (and all their <BR>> other scales which have this fault) to produce = a straight tenor end <BR>> of the long bridge?<BR>> <BR>> Thanks = for not leaving me out in the middle of the road. Once a Boy <BR>> Scout, = always a Boy Scout.<BR>> <BR>> Bill Ballard RPT<BR>> NH Chapter, = P.T.G.<BR>> <BR>> "May you work on interesting pianos."<BR>> =      ...........Ancient Chinese Proverb<BR>> +++++++++++++++++++++<BR>> = <BR>> _______________________________________________<BR>> = pianotech list info: <A href="https://www.moypiano.com/resources/#archives">http://www.ptg.org= /mailman/listinfo/pianotech</A></DIV></BODY></HTML>