This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Encountered this type of agraffes in pianos as old as 1840 Pierre Gevaert=20 ----- Original Message -----=20 From: "David Love" <davidlovepianos@comcast.net> To: "'Pianotech'" <pianotech@ptg.org> Sent: Sunday, August 14, 2005 6:28 PM Subject: RE: string termination > Seems like I have agraffes that have a metal rod insert. A hole is = drilled > through the agraffe such that when the metal rod is inserted it is = only > slightly exposed at the top of each hole. That puts the string = termination > in contact with the hardened metal rod rather than the brass. =20 >=20 > David Love > davidlovepianos@comcast.net=20 >=20 > -----Original Message----- > From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On = Behalf > Of Ron Nossaman > Sent: Sunday, August 14, 2005 8:54 AM > To: Pianotech > Subject: Re: string termination >=20 > > Why then not make a agraffe out of steel or some other harder = material?=20 > > That may be difficult for the one-off small-shop piano builder, but = if=20 > > there were a demand to others..... Why would this be so difficult? = Why=20 > > would brass persist so long? >=20 > Cost? Ease of machining? >=20 >=20 > > Why not use other termination types like a capo-type bar in all = string=20 > > sections like you see on cheap old American microgrands? What about=20 > > something more like an upright pressure bar arrangement? >=20 > Actually, it looks to me to be quite possible to retrofit an=20 > agraffed piano with a termination bar of harder material than the=20 > brass agraffe, along the agraffe line, with a pressure bar behind,=20 > screwed into the plate. A cast stepped bar would be ideal for=20 > matching speaking lengths within the unison, but I'm curious how=20 > well a curved bar would work. Just how critical are slightly=20 > mismatched speaking lengths within unisons at those string lengths?=20 > I'd guess there is some tolerance. >=20 > Ron N > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives >=20 >=20 > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives > ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/36/d6/97/65/attachment.htm ---------------------- multipart/alternative attachment--
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