C.Lose Square Piano

[Erwinspiano@aol.com]

---------------------- multipart/alternative attachment
In a message dated 11/28/2003 9:19:21 AM Pacific Standard Time, 
Richard.Brekne@grieg.uib.no writes:

Hi Joe 
  
As far as the reasoning for the ribs... take a gander at this picture with 
the shape of the bridge roughly drawn in. Seems to me they were maybe thinking 
that this ribbing pattern would support the bridge area against downbearing. 
One rib traces the bridge almost dead underneath for most of the bass lower 
treble. The two longest ribs run on either side, and along with the cross rib they 
perhaps were meant to hold the whole area up. 
  
  Ric ,your assuming that maker added any appreciable downbearing at all to 
the system.  After working with so many good sounding uprights over the years 
which had negligble bearing it may be safe to say that that most uprights are 
mainly  mass driven systems not requiring much ribbing support except to keep 
the board more rigid even though it's flat.  I suspect your square & many like 
it are the possibly the same kind of concept.
  Dale

---------------------- multipart/alternative attachment
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/b7/76/07/00/attachment.htm

---------------------- multipart/alternative attachment--