[pianotech] leveling keys !!!!

Richard Brekne Richard.Brekne@grieg.uib.no
Tue, 10 Sep 2002 20:45:55 +0200


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Hi Jack...

Seems like in both these examples below the height of the
key is not taken at the exact point of fulcum on the key...
or what ? If thats the case doesnt that result in the keys
ending up at slightly different angles so that the fronts
appear level ??

As to the use of the word viable... grin.. I admit I use the
word in a broad sense... certainly there are doable
solutions other then the standard punching. But nothing that
is actually easier at the same time as being cheaper,
stable, and worth the cost of change all at the same time.

That is unless of course... I am wrong.. :) Which as
everyone (well practically everyone) knows almost never
occurs :) :)

Cheers

RicB

JWyatt1492@aol.com wrote:

>
>
> Hello Phil F. and Richard B.
>
>     Phil !  there are at least two (2) other  methods
> that  were used  in the  past  that  were successful.
>    Sorry Richard !  but both are viable
>
>      The latest one used was in the " P.A. Starck "
> verticals in the 1960-61-62 time frame.  This was
> also after the J.P. Seeburg Organ  Co. bought Starck.
>
>       Under the key at the very back, an upright
> ( jack) let off rail was secured to the a wooden
> rail with  a let-of button and felt facing up under
> each
> key. The key height was adjusted by turning the
> let off button up or down. This was in their consols
> and spinets.
>    The down side being that after this was adjusted
> you then had to adjust the capstan.
>
>
>       The second method was in a  "Bowen-Henderson"
> 1920s grand and perhaps others. This method used
> a  "Jumbo" type drop screw that was inserted thru the
> key just in front of the center rail pin.  Of course the
> adjusting end of this screw was on top of the key.
> There was no punching of any type.   There was a
> strip of action cloth about a quarter inch wide in front
> of the center pins.  And to answer the most logical
> question, no,, there was no pulley keys and the piano
> was well used.
>      I demonstrate one of these in the
> "Action History Class" that I give for the
> PTG. Foundation
>
> Regards,
> Jack Wyatt




--
Richard Brekne
RPT, N.P.T.F.
UiB, Bergen, Norway
mailto:rbrekne@broadpark.no
http://home.broadpark.no/~rbrekne/ricmain.html


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