[pianotech] key leveling system

[Bruce Browning - The Piano Tuner]

Gerald,

See this patent application.
http://www.freepatentsonline.com/5654515.pdf



> Looks like a great idea to me.  I always wondered why Baldwins small
> balance
> rail screws for raising or lower their balance rails never caught on
> either.
> I liked that system.  Swift and simple.
>
>
>
> From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On
> Behalf
> Of wimblees at aol.com
> Sent: Saturday, March 06, 2010 6:22 PM
> To: Pianotech at PTG.org
> Subject: [pianotech] key leveling system
>
>
>
> This morning I tuned a 1924 Ludwig grand with a key leveling system I had
> never seen before. In each key, in front of the balance rail hole and pin
> is
> a screw that goes through the key. (see picture #1). The other on of this
> screw is like a capstan screw, which rests on a felt rail, which is the
> fulcrum of the key. (#2 and #3). The balance rail is used only to keep it
> from wobbling from side to side. The key height is adjusted using this
> screw.
>
> I've never seen a system like this. It's actually quite ingenious, and
> wonder why it was not accepted by other manufacturers. It did not feel any
> difference in how the piano played.
>
> Willem (Wim) Blees, RPT
> Piano Tuner/Technician
>
> 94-505 Kealakaa Str.
>
> Mililani, Oahu, HI  96789
> 808-349-2943
>
> www.Bleespiano.com <http://www.bleespiano.com/>
> Author of:
> The Business of Piano Tuning
> available from Potter Press
> www.pianotuning.com
>
>