Spring behaviour

[Delwin D Fandrich]

When this 'feature' was originally introduced it used a different type of
adjustment screw. There were some reports of noise and the design of the
screw was changed. So far as I know there have been no problems with noise
with the current design.

As well when this action was originally marketed to manufactures the
adjustment screw was sold as a time saving feature. If other manufacturers
experience was similar to that of Baldwin it actually took longer to set up
these wippens and regulate them. At the time we tried to get Renner to
consider repositioning the screw a bit toward the balance post--even
supplied some samples that really worked great--but to no avail. Eventually
we just logged it out to general German stubbornness--not invented
there--and decided not to make the switch. Even more eventually the company
did switch over but not without a lot of complaints from the production
people.

Del


----- Original Message -----
From: <A440A@aol.com>
To: <pianotech@ptg.org>
Sent: October 25, 2002 2:42 AM
Subject: Re: Spring behaviour


> Phil writes:
> > I've heard that
> >some manufacturers (sorry, I don't remember brands and I don't remember
> >the
> >source) had switched to these and then switched back for two reasons:
> >1.  The teflon adjuster and wire interaction develops some noise over
time.
> >2.  Repetition is faster with the Steinway style spring than with the
teflon
> >adjuster style.
> >
> >Have you found either of these things to be the case?
>
> No, not at all. Also,  I have never seen another brand of whippen that
used
> this type of spring adjustment, so I don't know what else has been tried.
I
> do know that of the many actions I have them in, none are causing
complaints
> of slow repetition.
> Regards,
> Ed
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