[pianotech] key position at rest

[PAULREVENKOJONES at aol.com]

David:
 
Recalling would presuppose a calling! :-) 
 
This bit about Ron Overs' action design is news to me. Does Ron  offer (is 
this really old news?) insight into his reasoning and does he have  demonstrably 
measurable results? If this is an archive matter, just say so, and  I'll do 
the work! :-)
 
Thanks,
 
Paul
 
 
In a message dated 3/14/2009 5:03:38 P.M. Central Daylight Time,  
davidlovepianos at comcast.net writes:

 
Theory  should be that the more the capstan is in line with a line drawn 
tangent to  the arc on which it travels and the angle of the wippen heal is 
perpendicular  to that line, the less sliding, the greater the wippen speed and the 
less  friction.  You might recall that on the Over’s action (Ron can correct 
me  if I’m wrong) that the capstan angles slightly forward and the angle of the 
 wippen cushion is slightly back, just the reverse of what you find on the  
older style pianos with angled heals and capstans.    
 
David  Love 
www.davidlovepianos.com
 
 
From:  pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf 
Of  PAULREVENKOJONES at aol.com
Sent: Saturday, March 14, 2009 2:48  PM
To: pianotech at ptg.org
Subject: Re: [pianotech] key  position at rest

 

 

 
In a  message dated 3/14/2009 4:14:35 P.M. Central Daylight Time,  
ricb at pianostemmer.no writes:

The  angled capstan idea was dropped years ago but was common enough 
around  the turn of the century... 1900's.  I'm really not sure what they  
were thinking about when they did that, but even S&S had them for a  while.
 
Ric:
 

 
Correct  me if I'm wrong on this (as if you wouldn't), but my understanding 
for a long  time has been that the angled capstans actually are advantageous to 
leverage  and friction. Inquiring minds really do want to  know.
 

 
Cheers...
 

 
Paul




  
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