Can you figure out what this does?

[JWyatt1492 at aol.com]

Hello Paul,
 
     This is indeed a  " Lost  Motion Eliminator "   
 
  This device  allows a "soft " pedal to raise the 
hammers closer to the strings without  creating 
any lost motion between the keys to the hammer.  
 
  This small lever was activated by a control rod 
at the back  connected to a pedal and could be 
individually regulated
 
  Melville Clark first used this system in his
 " Apollo "  player Grands. 
 
   The connection between the Chickering Bros.
" Acoustigrande" and the  " A. B. Chase " could
have been the   Thayer Action Co. 
 
   They are the Co. that built this particular 
whippen.
 
Hope this helps,
Jack Wyatt



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