Regulate by feel (was : Bechstein grand spread dimension)

Alan R. Barnard mathstar@salemnet.com
Wed, 18 Sep 2002 19:43:55 -0500


Does it not also set a limit to the amount the hammer physically falls after
let-off-not on a struck note, obviously, with hammer rebound and repetition
lever "cocked," but with a gentle, non-play press of the key-therefore truly
a "regulated drop?"

I'm sure that's where the term came from; maybe your term would be more
descriptive of the actual mechanics.

Does it not also, if set right, prevent hammer "bobble" or double-strike if
the backcheck doesn't catch the hammer on a light blow? If so, let's call it
the "Hammer Anti-Rebound, Drop Regulation, and Repetition Lever Upstop
Screw" or HARDRARLU Screw for short.

Maybe not.

Alan Barnard
Salem, MO

----- Original Message -----
From: "Jon Page" <jonpage@attbi.com>
To: <oleg-i@wanadoo.fr>; "Pianotech" <pianotech@ptg.org>
Sent: Wednesday, September 18, 2002 6:50 PM
Subject: RE: Regulate by feel (was : Bechstein grand spread dimension)


> At 12:17 AM 9/19/2002 +0200, you wrote:<snip>
> >Talking about the drop moment, at any price I will not delay the
> >contacts between regulating button or screws,
>
> Lets not forget the actual function of this adjustment as Del has pointed
> out many times.
>
> It is the repetition lever upstop screw, which restricts the lever's
> upwards movement as the jack begins escapement.
>
> It's nomenclature was derived from the result of the hammer's action. Its
> function is to not allow the hammer to traverse
> upwards beyond the point of letoff.
>
> Drop screw, a misnomer;  Repetition lever upstop screw, politically
correct
> piano nomenclature.
>
>
> Regards,
>
> Jon Page,   piano technician
> Harwich Port, Cape Cod, Mass.
> mailto:jonpage@attbi.com
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>
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