<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type"> <title></title> </head> <body bgcolor="#ffffff" text="#000000"> <font size="-1"><font face="Courier New, Courier, monospace"><big><big>Might what we took to be a spoon pressing against the letoff button really be <br> the repetition spring, looped to the front of the jack? <br> <br> If so, what will press on the letoff button? <br> <br> I agree, fun action .... David, could we get some more photos? <br> <br> Susan</big></big><br> </font></font><br> Overs Pianos wrote: <blockquote cite="mid:a06240815cc86cc899d69@%5B192.168.1.5%5D" type="cite"> <style type="text/css"></style> <title>Re: [pianotech] Curiously curvaceous repetition lever</title> <div>Susan,</div> <div><br> </div> <blockquote type="cite" cite=""><font face="Courier New" size="+1">. . . Might there be a small coil spring hidden inside</font></blockquote> <blockquote type="cite" cite=""><font face="Courier New" size="+1">the curve, pushing directly against the top part of the jack?</font></blockquote> <div><br> </div> <div><img src="cid:part1.00090804.05000206@peak.org"></div> <div><font face="Courier New" size="+1">I believe your speculation regarding a spring is correct, but it will be the repetition-spring which is doing the work for the jack return also. Notice that the rep' spring runs through what is almost certainly a slotted wippen heel. There must be a loop cord which we can't see, which is attached to the front of the jack (on the key-front side of the jack-centre), so that the spring provides the reverse jack rotation which is required to return it under the knuckle after lett-off. This is an interesting concept, because with this arrangement the jack escapement will be running in the same direction as the rotation of the roller as the let-off point is approached. Let-off should be a little less obvious in this action than it is with a conventional arrangement. The idea of the lower repetition-lever-centre is almost certainly intended to lower friction between the knuckle and repetition lever during the let-off. But I suspect that the centre has been lowered to such a degree that there may well be some friction in the opposite direction to that which is usual, with respect to a 'standard' action.</font></div> <div><font face="Courier New" size="+1"><br> </font></div> <div><font face="Courier New" size="+1">Ron O.</font></div> <x-sigsep></x-sigsep> <pre>-- </pre> <div><font color="#0000ff" size="+1"><b>OVERS PIANOS - SYDNEY</b></font></div> <div><font color="#000000"><i>   </i></font><font color="#0000ff"><i>Grand Piano Manufacturers</i></font></div> <div><font color="#000000">_______________________</font></div> <div><font color="#000000" size="-2"><br> </font></div> <div><font color="#000000">Web <a class="moz-txt-link-freetext" href="http://overspianos.com.au">http://overspianos.com.au</a></font></div> <div><font color="#000000"><a class="moz-txt-link-freetext" href="mailto:ron@overspianos.com.au">mailto:ron@overspianos.com.au</a></font></div> <div align="center"><font color="#000000">_______________________</font></div> <div align="center"><font color="#000000"><br> </font></div> <div align="center"><font color="#0000ff" size="-1"><i>A web page with images of recent work and almost-audio-CD quality mp3 sound files of the Overs piano can be found at;</i></font></div> <div align="center"><font color="#0000ff" size="-1"><i><a class="moz-txt-link-freetext" href="http://overspianos.com.au/more_info.htm">http://overspianos.com.au/more_info.htm</a></i></font></div> <div align="center"><font color="#0000ff" size="-1"><i><br> </i></font></div> <div align="center"><font color="#0000ff" size="-1"><i>So put on your headphones, plug them into your freshly restarted computer and sit back to over 20 minutes of pure piano.</i></font></div> <div align="center"><font color="#000000"> _______________________</font></div> <div align="center"><font color="#000000"><br> </font></div> </blockquote> </body> </html>