Can you figure out what this does?

[Farrell]

Would that not be the wippen part of a lost motion compensator? When the hammer rail is raised for soft play, there would be lost motion between the rep lever/jack and the knuckle. There must be a rail that lifts the little let-off-looking button on your little unit, thus effectively increasing the height of the wippen heel. With your unit adjusted properly, your hammer line could still sit properly just above the hammer rail and with no lost motion.

Basically, when you shorten the blow distance when you push the soft pedal, the hammer line raises, the hammer rail follows, the wippen heel height increases and the key capstan stays in the original place.

 Or maybe it's a cosmic strenulator.

Or not.

I'm just guessing.

Terry Farrell
  ----- Original Message ----- 
  From: paulrevenkojones at aol.com 
  To: pianotech at ptg.org 
  Sent: Saturday, February 02, 2008 7:22 PM
  Subject: Can you figure out what this does?


  Below, and attached, is a picture of a whippen from a Chickering Bros (ugh) grand. It's the kind with a soft pedal mechanism that raises the hammer rest rail closer to the strings to reduce blow distance.

  Familiar to anyone?


   
  View full size

  Paul






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