keyboard levelling

[Isaac Sadigursky]

I think,H,C.Bay piano maker used some "innovative " idea for key leveling..
It looked good on the drawibg board,but piano coudn't read it,so it didn't
work. Well,keep experimenting.. looks like the old-fashion way still works 


> [Original Message]
> From: Tom Driscoll <tomtuner@comcast.net>
> To: Pianotech <pianotech@ptg.org>
> Date: 11/26/04 9:40:16 AM
> Subject: Re: keyboard levelling
>
>
> Subject: Re: keyboard levelling
>
>
> > Hi List,
> > This question is obvious to me, but I don't know the history of
innovation
> in
> > piano design.
> > Has anybody tried a balance rail pin which screws in and out of the
> balance
> > rail, with micro-thread like tuning pins, to adjust it's height.
> > A flange at the bottom on which sits one felt punching and then the key,
> > which goes up and down when adjusted from the top. Has to be quicker,
> easier
> > and more accurate.
> > Bruce Browning-The Piano Tuner.
> >
> Bruce,
>     Sounds very compelling. I remember an idea from many years past
> concerning an adjustable key leveling system.I think it was from Alfred H.
> Howe and detailed in his book on piano technology.
>     Playing devils advocate here ,when you bend the balance rail pin to
> square the keys ,if the pin is not perfectly  plumb it would rotate in an
> elliptical fashion when adjusted throwing off the squaring .
>     This is not to discourage what seems like an interesting concept,just
a
> factor to consider   Need investors?
>     Tom --Just had a turkey sandwich--Driscoll RPT
>
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