Whippen support springs

[Jason Kanter]

Gold would work nicely...

-----Original Message-----
From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]On
Behalf Of David Ilvedson
Sent: Thursday, April 28, 2005 7:32 AM
To: pianotech@ptg.org
Subject: RE: Whippen support springs


Isn't there an alternative to lead?  I realize steel doesn't wear as much
and rusts...;-[   A compromise with some weight and some spring seems the
best....

David I.

----- Original message ----------------------------------------
From: Ric Brekne <ricbrek@broadpark.no>
To: pianotech <pianotech@ptg.org>
Received: Thu, 28 Apr 2005 14:50:58 +0100
Subject: Whippen support springs


>Hi Jack.

>Like em or not, me thinks we are going to see a whale of a lot more of
>them at least in Europe. Thats because in a couple years now lead in
>keys will be forbidden by law.  Alternatives are magnetic schemes like
>my own open source design, or some of the patented ones that some few
>factories have.

>One of the backdraws is there proximity to where a voicing block is to
>be inserted. Not usually the easiest of things to do if one wants to
>avoid changing the tension on the springs whilst still using a voicing
>block.  There are some touch concerns that are argued back and forth. As
>usual, there is much opinion and less hard facts on the subject, but I
>think its fair to say the use of springs provides a different touch then
>use of leaded keys.

>A leadless key is certainly possible however.  More then likely one
>would opt for fairly light hammers in the case. But its a doable within
>acceptable touch parameters.  I personally prefer a more mass based
>system... but thats just me.

>Cheers
>RicB


>Jack writes

>I would like to know some things about wippen support springs. Who uses
>them?  Do companies still continue to use them?  Should they be removed? >I
know they make key weighting difficult.=20

>Jack Houweling


>_______________________________________________
>pianotech list info: https://www.moypiano.com/resources/#archives

_______________________________________________
pianotech list info: https://www.moypiano.com/resources/#archives