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<DIV>Jack-</DIV>
<DIV>Would you tell us more about the Hickman action model you have built?</DIV>
<DIV>The patent descriptions read wonderfully, like all patent descriptions.</DIV>
<DIV>The reinforced graphite bushing inserts remind me of teflon bushings.</DIV>
<DIV>Which makes me wonder if the parts could be machined of teflon or cast in carbon fiber reinforced plastic.</DIV>
<DIV>Meanwhile, Pfeiffer, in <U>The Piano Hammer,</U> gives a pretty negative second hand description: lacks power, poor repetition, humidity sensitive.</DIV>
<DIV>So could you give us some hints?</DIV>
<DIV>(Inquiring minds doing key bushings need something to ponder.)</DIV>
<DIV>Thanks.</DIV>
<DIV>Ed Sutton<BR><BR><BR></DIV>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 0px; BORDER-LEFT: #0000ff 2px solid">-----Original Message----- <BR>From: JWyatt1492@aol.com <BR>Sent: Apr 18, 2006 10:33 PM <BR>To: pianotech@ptg.org <BR>Subject: Christofori <BR><BR><ZZZHTML><ZZZHEAD><ZZZMETA content="text/html; charset=US-ASCII" http-equiv="Content-Type"><ZZZMETA content="MSHTML 6.00.2900.2802" name="GENERATOR"></ZZZHEAD><ZZZBODY id=role_body style="FONT-SIZE: 10pt; COLOR: #000000; FONT-FAMILY: Arial" rightMargin="7" topMargin="7" leftMargin="7" bottomMargin="7"><FONT id=role_document face=Arial color=#000000 size=2>
<DIV>To Israel and All,</DIV>
<DIV> </DIV>
<DIV> Joe is right. Christofori was at least a hundred</DIV>
<DIV>years ahead of all others.</DIV>
<DIV> </DIV>
<DIV> His first action had escapement and a "sort" of </DIV>
<DIV>check. And it did not work very well.</DIV>
<DIV></DIV>
<DIV> His second action had a good working escapement</DIV>
<DIV>and a good working check. This check is so good </DIV>
<DIV>that we use it today.</DIV>
<DIV> </DIV>
<DIV> As a matter of fact he was one spring away from what</DIV>
<DIV>we use today in having a double escapement.</DIV>
<DIV> </DIV>
<DIV> You will find both working models in our Museum now.</DIV>
<DIV> </DIV>
<DIV> I tinkered around with his second action model and </DIV>
<DIV> by adding one (1) spring it becomes a double escapement.</DIV>
<DIV> </DIV>
<DIV> I will not have these models in Rochester however we</DIV>
<DIV>will have "The Hickman." </DIV>
<DIV> </DIV>
<DIV> The " Hickman" is the only action, to my knowledge, that </DIV>
<DIV> </DIV>
<DIV>is truly different from <STRONG>ALL </STRONG> others.</DIV>
<DIV> </DIV>
<DIV> I built it using original parts. This is another story.</DIV>
<DIV> </DIV>
<DIV> Sometimes the facts are more interesting than</DIV>
<DIV>the rumors. This,, is one of those times.</DIV>
<DIV> </DIV>
<DIV> Knowledge is a bankable commodity. </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>Regards,</DIV>
<DIV>Jack Wyatt</DIV></FONT></ZZZBODY></ZZZHTML></BLOCKQUOTE></BODY>