This is a multi-part message in MIME format. ---------------------- multipart/related attachment ------=_NextPart_001_000F_01C16834.3D18AD20 ----- Original Message -----=20 From: "Phillip L Ford" <fordpiano@lycos.com> To: <pianotech@ptg.org> Sent: November 06, 2001 11:53 PM Subject: Bridge agraffes > ------------- > Del, > Would you care to elaborate on this a little? I haven't seen the = Stuart > piano. If the side by side performance of your device was comparable > with notched bridges with pins I would think that the device in = question > would have some advantages over a conventional bridge string = termination. > Were there some reasons that it wasn't adopted? >=20 > Phil > --- Phil, This was/is not an agraffe. It's basically a long, flat plate with two = risers, one at each end, which are string bearing points and a riser in = the middle with one, two or three slots through which the strings pass. = The middle riser has a slot milled/cast into it which accepts a mild = steel pin. The pin is oriented in such a way that it deflects the string = downward from a straight path across the two end risers. (I've pasted in = part of an old drawing though I've no idea if it will come up on your = screen.) The back end has a molded-in pin that indexes into a pre-drilled hole in = the top of a flat bridge body. Toward the front there is a countersunk = hole through which a flat-headed wood screw passes to attach and index = the front of the device to the bridge. The two holes drilled straight = into the bridge align the device to the string centerline. I do think the device has some inherent advantages over the standard = bridge pin system though I didn't do enough testing to determine what = the long-term performance of the thing might be. One might say this is = being done now in the field on the Stuart piano. It will be interesting = to see how it holds up over time. There was no interest in pursuing this kind of experimental work by my = employer at the time. Since the company was paying for my time I let the = idea drop and went on to other things. I do plan to resurrect it again = one day. Del ------=_NextPart_001_000F_01C16834.3D18AD20 An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/36/af/ad/b7/attachment.htm ------=_NextPart_001_000F_01C16834.3D18AD20-- ---------------------- multipart/related attachment A non-text attachment was scrubbed... Name: not available Type: image/gif Size: 1131 bytes Desc: not available Url : https://www.moypiano.com/ptg/pianotech.php/attachments/60/49/f6/f7/attachment.gif ---------------------- multipart/related attachment--
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