Balance rail punchings, resisance on 'tip".

[gordon stelter]

On this otherwise horrid Chickering Brown action I am
doing, there is one notable "plus" -- a faint
depression routed in the balance rail, just behind of
the punchings', lead edge. There has been discusssion
here about clipping the front edge of BR punchings so
that they offer no increased resistance to the keys'
tilt. But then they need to be secured in place, so
they don't rotate.
     This faint trough, about 1/64" deep, achieves the
same result.
     Thump


--- Don Valley <dvalley1@bellsouth.net> wrote:

>  I do not believe pianos were done without balance
> rail punchings.  I have
> seen them totally eaten away and/or removed by a
> previous (technician?).  My
> advice is to determine the correct key height, then
> add at least the thin
> punching, preferably with a .010 punching under each
> one in order to be able
> to adjust the key level downward, if necessary, when
> you do your final
> leveling.
> A piano without balance rail punchings would be
> somewhat noisy, to say the
> least.
> Don Valley
> 
> -----Original Message-----
> From: John Delmore [mailto:johndelmore@cox.net] 
> Sent: Saturday, September 03, 2005 11:13 PM
> To: pianotech@ptg.org
> Subject: Balance rail punchings
> 
> Hi all:
> Today, I got into the Brinkerhoff "lab" piano--just
> a thourough cleaning
> right now.  I noticed that there are no felt
> punching on the balance rail:
> is this common for circa 1925 pianos (sn 114743 if
> any of you kind folks
> have an atlas handy)?  I'm guessing I shouldn't
> "add" felts where I don't
> find them.
> John Delmore
> 
> 
> 
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> 


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