Soundboards

[Delwin D Fandrich]

----- Original Message -----
From: Ron Nossaman <RNossaman@KSCABLE.com>
To: <pianotech@ptg.org>
Sent: April 20, 2000 7:40 PM
Subject: Re: Soundboards


> >Hi List  would you explain what is known about reverxe crown in older
> >uprights??  Pat Neely
>
> Hi Pat,
> I've never seen one with an intentionally reverse crowned soundboard, so I
> don't have any useful information on them. I have, however, seen a whole
> lot of both verticals and grands of all ages from new to over a hundred
> years old that, while supposedly originally having positively crowned
> boards, actually had negatively crowned ones at the time I saw them.
> Soundboards can be driven into a negative crown as a result of poor
design,
> overloading bearing, poor construction technique, age and humidity
> extremes, etc. What was the brand?
>
> Ron N

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Rippen.  Used both laminated soundboard panels and intentionally
'reverse-crowned' soundboard panels.  Accomplished mainly by gluing flat
ribs onto a flat board and pressing in a flat caul, then loading with string
bearing.

Del