Ibach Capstan

w peterson wpeterson2@socal.rr.com
Sat, 7 Aug 2004 17:58:47 -0700


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It can be done, but is no fun.  Bill Peterson
  ----- Original Message -----=20
  From: Farrell=20
  To: pianotech@ptg.org=20
  Sent: Saturday, August 07, 2004 4:31 PM
  Subject: Ibach Capstan


  I saw an interesting capstan arrangement on a 1905 Ibach concert grand =
the other day. I wish I had my digital camera with me......

  The key has a stick protruding from the top at the capstan location =
that is connected to the key with an action center (pin, bushings, etc). =
The stick is just a half-inch or so long. A capstan with threaded rod =
protruding from both the bottom and top are screwed into the stick on =
the bottom and the wippen heel on the top. If you turn the capstan =
clockwise, it screws into both the wippen heel and the stick, thus =
bringing the heel closer to the key - turn it counterclockwise and the =
opposite happens.=20

  Looks like a really neat system where you would get no friction loss =
at the capstan/wippen heel interface. I wonder how much fun it is to =
remove the stack?

  Anyone see this configuration before? Comments?

  Terry Farrell
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