Adjusting back rail dip

[Robin Stevens]

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 AF. there are four or five large screws.The heads are secured by a round
head screw overlapping the large screws head. This allows the rail to be
raised or lowered at four or five places. It is a very quick way to adjus=
t
the dip providing the keys are identical dimensions.=0D
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The back rail pianos sometimes had front touch washers or a strip of felt=
 to
stop the key from snapping in the middle.=0D
=0D
I personally remove all the back rails if I am doing a major regulation.
Plus, the rail is normally made of a good quality hard wood suitable for =
all
sorts of odd jobs that need a small piece of hard wood.=0D
=0D
Some of the old German pianos had a rail that had to be cut off with a
circular saw and had no adjusting screws, so the adjustment was packing t=
he
felt where needed. =0D
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Regards=0D
Robin Stevens ARPT=0D
South Australia=0D
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-------Original Message-------=0D
 =0D
From: Pianotech=0D
Date: 09/05/05 01:37:10=0D
To: Pianotech=0D
Subject: Re: No front rail punchings either=0D
 =0D
Typically 1890's German pianos. On a very hard blow this setup would tend=
 to=0D
break keys. With that back rail, I don't know how they regulated the key=0D
dip.=0D
 =0D
AF=0D
 =0D
 =0D
----- Original Message -----=0D
From: "Michael Gamble" <michael@gambles.fsnet.co.uk>=0D
To: "'John Delmore'" <johndelmore@cox.net>; <pianotech@ptg.org>=0D
Sent: Sunday, September 04, 2005 9:26 AM=0D
Subject: RE: No front rail punchings either=0D
 =0D
 =0D
> Hello List=0D
> If this contribution gets through without being hurled back as=0D
> "suspicious"=0D
> by "owner-pianotech-ptg etc" I have often come across upright pianos wi=
th=0D
> no=0D
> front rail punchings. Reason? There's a suspended rail over the tail en=
d=0D
> of=0D
> the keyframe. The keys hit this instead.=0D
> Regards from a Sunny early morning in The Village. Coffee Vicar?=0D
> Michael G.(UK)=0D
>=0D
> -----Original Message-----=0D
> From: John Delmore [mailto:johndelmore@cox.net]=0D
> Sent: 04 September 2005 03:13=0D
> To: pianotech@ptg.org=0D
> Subject: Balance rail punchings=0D
>=0D
> Hi all:=0D
> Today, I got into the Brinkerhoff "lab" piano--just a thourough cleanin=
g=0D
> right now.  I noticed that there are no felt punching on the balance ra=
il:=0D
> is this common for circa 1925 pianos (sn 114743 if any of you kind folk=
s=0D
> have an atlas handy)?  I'm guessing I shouldn't "add" felts where I don=
't=0D
> find them.=0D
> John Delmore=0D
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_______________________________________________=0D
pianotech list info: https://www.moypiano.com/resources/#archives=0D
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