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MMD > Archives > October 2008 > 2008.10.13 > 03Prev  Next


H. C. Bay Transmission Linkage
By Skip Downing

Here's a new one on me. I'm in the final throes of restoring an
H.C. Bay player in a Belmore upright, and at the risk of offending
fans of either, may I say I'm not impressed with the piano or the
player.  However, I'm contracted to finish this instrument, so let's
finish it up.

The current conundrum is that the Play/Reroll linkage moves the
pinion gear only about 1/16".  Is this common in an H.C. Bay?  There
are no adjustments in the linkage, and everything is just where it
was when I dismantled it.  So, any bright thinkers out there got
a way to increase the throw of the Play/Reroll linkage?  I considered
replacing a solid control rod with an adjustable one, as in a Standard,
but that wouldn't increase the throw, only make it easier to adjust.
I suppose I'm looking at making a longer finger or something like that.
Any brilliant ideas will be readily entertained.

Skip Downing

 [ I traced the cause of the same problem in my Aeolian upright to
 [ excessive motion of the linkage pivot screws.  Proper movement
 [ of the transmission pinion gear was regained after I tightened
 [ (or replaced) the shoulder screws.  -- Robbie


(Message sent Mon 13 Oct 2008, 20:14:33 GMT, from time zone GMT-0700.)

Key Words in Subject:  Bay, C, H, Linkage, Transmission

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