<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META content="text/html; charset=iso-8859-1" = http-equiv=Content-Type> <META content="MSHTML 5.00.2314.1000" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT size=2>List--from Sy Zabrocki    = </FONT></DIV> <DIV> </DIV> <DIV><FONT size=2>Some new high end pianos sell in excess of $50,000. = All that cash and we still use paper punchings to level keys and set key dip. = Wouldn't someone eventually consider this to be archiac. Not really saying it is, = just asking the question.</FONT></DIV> <DIV> </DIV> <DIV><FONT size=2>About 25 or 30 years ago a strange vertical piano = was exhibited at one of the trade shows. I seem to remember the name as a = Thomas and I believe it had all plastic componets. The keys on this piano could be = leveled and key dip set with a clever set of threaded key pins. My memory of how = this worked is faint but I'll try explain.</FONT></DIV> <DIV> </DIV> <DIV><FONT size=2>Imagine an extra long balance rail pin as an axle = with a small wheel swedged about half way up the shaft. The lower end of the balance = rail pin is threaded and screwed into the keybed. So now place a cloth = balance rail punching on the round disc shaped (wheel) and place the key over = the pin like normal. The top end of the pin is slotted so it can be turned with = a screwdriver. Turning the top of the balance rail pin either way = raises the key up or down thus eliminating the need for paper punchings. = </FONT></DIV> <DIV> </DIV> <DIV><FONT size=2>Setting the key dip was similar. Again the front = rail pin had a disc mounted about half way up the shaft. The lower part of the pin = was threaded and screwed into the keybed. This time the front rail pin was = slotted at the bottom end. The key dip was adjusted by inserting a screw driver = into the hole UNDER the keybed. A cloth front rail punching is now on the disc = (wheel). As the front pin is turned from under the keybed the punching raises or = lowers, thus eliminating the need for paper punchings. With this system there = probably would be no need for a key frame.</FONT></DIV> <DIV> </DIV> <DIV><FONT size=2>All this pertains to a vertical piano. The grand = piano key frame has to shift so it becomes complicated to apply this to the grand = action. </FONT></DIV> <DIV> </DIV> <DIV><FONT size=2>Has anyone seen this system or any similar to = it?</FONT></DIV> <DIV> </DIV> <DIV><FONT size=2>Sy Zabrocki</FONT></DIV></BODY></HTML>