query

[Richard Moody]

On the Sohmer with agraffes on the bridge, I have an upright from the
1880's with such an arrangement.  The sound board is "shattered" as
it was said in song.  I would be happy to video a bunch of details,
just send a blank tape in an SASE mailer.  Email for the snail
address if interested.   

Another friendly service, from ,,,,

Richard Moody

ps  If the price is right, some where between one and a hundred
dollars, you can buy this piano.  Actually those bridge agraffes
might be worth one to five dollars each, but the offer stands.  rm

pm   (private message)   your tilter video is comming,, hang on. : ) 
 rm 
----------
> From: JIMRPT@aol.com
> To: pianotech@ptg.org
> Subject: re: query
> Date: Sunday, June 22, 1997 10:25 AM
> 
>
> <<" On Sohmer grands with Agraffes on the treble bridge, are they
working
> with a combination of up and down bearing at the same time?  Why
did this
> design get dis-continued?">>
>   On bearing, the answer is no and yes!  Is that clear ?  :-)  On
those
> bridges the down bearing appears as a function of the up bearing
mainly,
> i.e.; the higher the upward force applied to the agraffe the higher
the
> bridge will rise and the down bearing increases on the 'back' of
the bridge
> only.
>   In my opinion the model was discontiued due to two seperate but
related
> factors. i.e.;  The agrafffe termination on the bridge resulted in
a clear
> but kinda nasal tone as compared to instruments that rely on down
bearing for
> energy transfer.  Secondly the upbearing required for the agraffes
led to
> catastrophic failures of the sound board /rib integrity as the
inherent
> upbearing tended to open gaping holes/cracks when there was the
occasional
> glue joint failure between ribs and board.
>   Sorry it is a gloomy day there James. Here in Jax it is a
beautiful, clear
> day, but then we have fruit flies, illegal immigrants, and
hurricane season
> is here; so I guess we are about even.  :-)
> Jim Bryant (FL)
>