Baldwin accu-hitch pins

[Delwin D Fandrich]

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  ----- Original Message -----=20
  From: Carl Meyer=20
  To: pianotech@ptg.org=20
  Sent: January 19, 2002 3:17 PM
  Subject: Re: Baldwin accu-hitch pins


  Dale,  I'm trying to set bearing on a modified Emerson.  Modified for =
accujust hitch pins.

  From a friend I borrowed the Balwin instructions.

  Briefly:::   Without bass strings installed, string treble and set =
bearing to (zero) with strings at pitch.  No load on board. =20
  Now set specified number of notes starting at bottom to 1 div (.5 =
degrees). Number of notes depending on model of piano.  Then next group =
of notes to 2 div (1 degree).  Then the last group to 3 div (1 1/2 =
degrees).  Lastly install the bass strings and set at pitch to 1 div (.5 =
degrees).

Is that really what it says? The bubble gages I used at the factory were =
supposed to be calibrated to indicate a deflection of 17 minutes of arc =
which was supposed to translate to 0.5% string downforce. I.e., with a =
string having, say, 175 lbs of tension a bubble gage deflection of one =
gradation indicated a string downforce of 8.75 lbs. I have to admit I =
took the above at face value and didn't do any checking to verify, but =
that, at least, was the theory.

Del


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