<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=US-ASCII"> <META content="MSHTML 6.00.2800.1400" name=GENERATOR></HEAD> <BODY id=role_body style="FONT-SIZE: 10pt; COLOR: #000000; FONT-FAMILY: = Arial" bottomMargin=7 leftMargin=7 topMargin=7 rightMargin=7><FONT id=rol= e_document face=Arial color=#000000 size=2> <DIV> <DIV> Keith</DIV> <DIV>  Perhaps I missed it, but why are you inquiring of this?</DIV> <DIV>Its an interesting idea. I saw the pictures & it got me thinking</D= IV> <DIV>   Dale Erwin</DIV> <BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid"><= FONT style="BACKGROUND-COLOR: transparent" face=Arial color=#000000 size= =2>'s called a conical washer, sometimes a Belleville washer and its<BR>>properties lend itself much more nicely to the application. ...= Dean May<BR>><BR>>-----Original Message-----<BR>>Another type was= her that has been used in flanges is one that is not<BR>>flat or split, but= is warped in a fashion. Don't know it's technical<BR>>name.<BR>>Keith McGavern<BR><BR>Thanks to Dean, I decided to search for what is was I had = in mind.<BR>Here is a representative picture of the actual washer I was <BR>referring, and its official name, Spring Wave Washer:<BR><BR>http://www.itwac.com/sw.html<BR><BR>Keith<BR>-- <BR>Keith McGavern<BR>Registered Piano Technician<BR>Oklahoma Chapter 731<BR>Piano Technicians Guild</FONT></BLOCKQUOTE></DIV> <DIV></DIV> <DIV> </DIV> <DIV> </DIV> <DIV><FONT lang=0 face=Arial size=2 FAMILY="SANSSERIF" PTSIZE="10"= >Erwins Pianos Restorations <BR>4721 Parker Rd.<BR>Modesto, Ca 95357<BR>209-577-8397<BR>Reb= uilt Steinway , Mason &Hamlin Sales<BR>www.Erwinspiano.com</FONT></DIV></FONT></BODY></HTML>