50-cm centre pins

[David's Email]

Maybe I missed something...the correct size for the birdseye/bushing is
determined then that size in the long center pins are inserted into the
bushing and pulled through to the end?  This burnishes the bushing and then
the center pin material is nipped off.  I guess the nipped end, which might
be slightly distorted from the cut, doesn't cause a problem with the next
bushing?  The 50-cm center pin gets shorter and shorter.  How short can it
get before the burnishing isn't as effective?  Am I missing something?

David Ilvedson

----- Original Message ----- 
From: "Isaac sur Noos" <oleg-i@noos.fr>
To: "College and University Technicians" <caut@ptg.org>
Sent: Wednesday, October 15, 2003 2:14 PM
Subject: RE: 50-cm centre pins


> I don't think so, it is the same material as usual center pin (brass ,
> nickel plated). The sharp end is one side only.
>
> On some ancient Pleyels (and others)we have these used in lenght that
> are the centers for may be 15 or 20 hammer butts - we call that "comb"
> actions, not fun to repin.
>
> But the long centers are to be used like the short ones , only they
> burnish the bushing when inserted, that's convenient.
>
> Best regards
>
>
> Isaac OLEG
>
> Entretien et reparation de pianos.
>
> PianoTech
> 17 rue de Choisy
> 94400 VITRY sur SEINE
> FRANCE
> tel : 033 01 47 18 06 98
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>
> > -----Message d'origine-----
> > De : caut-bounces@ptg.org [mailto:caut-bounces@ptg.org]De la part de
> > James Ellis
> > Envoye : mercredi 15 octobre 2003 20:23
> > A : caut@ptg.org
> > Objet : 50-cm center pins
> >
> >
> > I stand corrected.  I see that you folks are talking about 50 and 60
> > cm-long pieces of alloy wire that are pointed on the ends.
> >
> > Jim Ellis
> >
> >
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> >
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