[pianotech] pianotech Digest, Vol 37, Issue 24

[Joseph Garrett]

David,
I do believe you have the answers to both questions, strange though they
may seem, it all makes some sense.<G> Weird!
Thanks,
Joe


> [Original Message]
> From: <pianotech-request at ptg.org>
> To: <pianotech at ptg.org>
> Date: 11/9/2011 11:17:20 AM
> Subject: pianotech Digest, Vol 37, Issue 24
>
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> Today's Topics:
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>    1. Re: Variant Spring & Loop Action (David Boyce)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 09 Nov 2011 19:16:38 +0000
> From: David Boyce <David at piano.plus.com>
> To: pianotech at ptg.org
> Subject: Re: [pianotech] Variant Spring & Loop Action
> Message-ID: <4EBAD196.8020303 at piano.plus.com>
> Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"
>
> Dagnabbit you're right: I wish I had studied the thing more thoroughly!
>
> What I think, is this:  The let-off (or set-off) button cannot drop 
> down, because with the HAMMER flange in place on top of its own flange, 
> the heel (if you can call it that) surrounding the birdseye, cannot 
> rotate upwards as it is blocked against the base of the hammer flange.
>
> In point of fact, it seems superfluous for the buttons to have flanges 
> with centres at all. They do not need to rotate/move.
>
> I suppose it was perhaps simpler to manufacture centre-pinned flange 
> arrangements than to make an angled fixed piece for each button. Also, 
> with the hammer flange unscrewed and lifted out of the way, the set-off 
> (or let-off) button could be flipped upwards in its flange to allow for 
> screwing the button up or down to adjust set-off.  Cumbersome though!
>
> I'm sending the two pics again just for ease of reference.
>
> Best regards,
>
> David.
>
> > David,
> > After looking at the picture a bit more, another question came to light:
> > What keeps the "let-off" button in position??!! It looks like it would
just
> > drop down on the first stroke. Does it have a cord or some such to keep
it
> > in position?
> > Best,
> > Joe
> > Joe Garrett, R.P.T.
> > Captain of the Tool Police
> > Squares R I
>
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> End of pianotech Digest, Vol 37, Issue 24
> *****************************************