Oblique hammers

[Stéphane Collin]

Thanks, Isaac, for pertinent comment.

Stéphane Collin.

----- Original Message ----- 
From: "Isaac OLEG" <oleg-i@wanadoo.fr>
To: <pianotech@ptg.org>
Sent: Wednesday, May 29, 2002 10:44 PM
Subject: RE: Oblique hammers


| Stephane,
| 
| hammers are usually glued with aluittle slant at the breaks, in order to
| have a better travel.
| 
| When filed they will present that angle you noticed. (because the filing is
| straight) I understand that this inequal contact on the strings gives a lot
| of zingling sound and high partials, but this is not usually desired in
| piano tone.
| 
| But I've seen that on a piano with rusty strings, lot of capo noises, the
| tech have pulled a little out of the bridge pins the few remaining pure
| sounding strings, in order to have the same kind of tone everywhere.
| 
| There is another parameter that goes in the picture : the string termination
| on the bridge is not in the same plane that the soundboard, particlularely
| where the bridge is really in a diagonal direction. The plane of the string
| can well not be level at these places (mostly near the break again ), so we
| have to shape the hammers accordainly.
| 
| Regards.
| 
| Isaac OLEG
|