[pianotech] Question about an old action damper and jack

[William Truitt]

Hi Jon:

I would hold off on that recommendation about the drop screw sockets.  I
believe that you turn the screw to adjust the wire up or down in the
underlever, and the wire presses against the side of the hole to be held in
place in conjunction with the screw.

Del Fandrich wrote an article on this Decker Bros. damper system back in
1993?  Sometime around then.  It had drawings and a description of how it
worked.  The wire coming up through the bottom of the underlever is actually
a guide pin, there in lieu of underlever flanges. Actually quite an
ingenious and simple system.

Will Truitt

-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Jon Page
Sent: Wednesday, December 09, 2009 7:19 PM
To: pianotech at ptg.org
Subject: Re: [pianotech] Question about an old action damper and jack

The drop screw looks like it is turned to apply pressure against
the wire to hold it in place.  You could install sockets in the
top flange for a more positive grip.

Jack rest buttons with adjusting screws can be retrofitted along
with the spoon if you don't want to fuss with the rest felt.
-- 

Regards,

Jon Page