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<DIV><SPAN class=170515423-16102003><FONT face=Arial color=#0000ff =
size=2>As 'ol
Arthur said on page 25. "Lost Motion compensators were sometimes =
used on
the stickers. In the regular verticl action, when the soft pedal =
is
depressed, pushing the hammer rail and hammers halfway toward the =
strings, a
space or lost motion is introduced between the jack and the hammer =
butt.
The lost motion compensator makes use of the leverage to eliminate lost =
motion
when the hammer rail goes up, allowing the pianist to play more softly =
by
decreasing hammer travel distance, while at the same time giving the =
keys
control over the hammers through their full stroke. The =
compensator
mechanism was used only on expensive uprights made in the early 1900's, =
and it
greatly enhanced the soft playing capabilities of the upright =
piano.
Unfortunately, as manufacturers sought to reduce their costs, this =
complicated
device was the first to go."</FONT></SPAN></DIV>
<DIV><SPAN class=170515423-16102003><FONT face=Arial color=#0000ff =
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=170515423-16102003><FONT face=Arial color=#0000ff =
size=2>The
one on my piano has joints in the sticker that rotate as the key is
pressed. This joint his the lost motion compensator bar that runs =
across
the front of all the stickers. This bar is connect by rods to the =
hammer
rail. When the soft pedal is pressed the rail naturally moves =
closer to
the strings, and this raises the bar of the lost motion compensator =
which moves
the joints on the stickers, thus moving the jack closer to the hammer =
butt as
well as the hammers moving closer to the strings.</FONT></SPAN></DIV>
<DIV><SPAN class=170515423-16102003><FONT face=Arial color=#0000ff =
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=170515423-16102003><FONT face=Arial color=#0000ff =
size=2>Hard
to put explain in print but maybe you can imagine what I'm trying to
say.</FONT></SPAN></DIV>
<DIV><SPAN class=170515423-16102003><FONT face=Arial color=#0000ff =
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=170515423-16102003><FONT face=Arial color=#0000ff =
size=2>Joey</FONT></SPAN></DIV>
<DIV></DIV>
<DIV><FONT face=Tahoma size=2>-----Original =
Message-----<BR><B>From:</B> Michael
Gamble [mailto:michael@gambles.fsnet.co.uk] <BR><B>Sent:</B> Tuesday, =
December
16, 2003 7:25 PM<BR><B>To:</B> joey@onkeypianotuning.com;
Pianotech<BR><B>Subject:</B> Re: Lost Motion Compensator &
Regulation<BR><BR></DIV></FONT>
<BLOCKQUOTE dir=ltr
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px =
solid; MARGIN-RIGHT: 0px">
<DIV><FONT face=Arial size=2>Hello Joey Recker</FONT></DIV>
<DIV><FONT face=Arial size=2>What's a "lost motion compensator"? =
Is it a
dolly-top? a "touch screw"? Any way is it a means of getting rid of =
the lost
motion between the keys and the action? If so, then (assuming the key =
dip is
regulated and keys are even) adjusting (or regulating) the "touch" is =
where
you start. Then follow ol' Arthur as you said.</FONT></DIV>
<DIV><FONT face=Arial size=2>Regards</FONT></DIV>
<DIV><FONT face=Arial size=2>Michael G =
(UK)</FONT></DIV></BLOCKQUOTE>
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