[CAUT] springs vs. lead

[Joseph D. Gotta, RPT]

Leads get loose and click or travel out of their hole to bind against
other things. They also swell in damp environments. Also, that much
weight in the damper tray would likely require redesigned stronger
flanges or hinges. It's just another set of problems to trade off.
Perhaps a better spring with a sealed bearing roller at the working end?
Perhaps this is a useful place for magnets?

Joseph D. Gotta RPT


-----Original Message-----
From: caut-bounces@ptg.org [mailto:caut-bounces@ptg.org] On Behalf Of
David Ilvedson
Sent: Tuesday, May 10, 2005 10:15 PM
To: pianotech@ptg.org; caut@ptg.org
Subject: [CAUT] springs vs. lead

We all come across noise from springs in pedals.   Why couldn't we
eliminate the spring and use key leads inserted into, for instance the
damper lifter tray, pedal levers...places where springs are used to
return parts...?

David Ilvedson




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