This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment -----Original Message----- From: John Minor <jminor@uiuc.edu> To: caut@ptg.org <caut@ptg.org> Date: Wednesday, June 30, 1999 11:42 AM Subject: Restringing Baldwin >I'm getting ready to restring a Baldwin L and would like to know how to >set the new wires on that accu-just (or whatever!) hitch pin. In 21 = years >I've not had the pleasure of restringing one of these!! > >John Minor=20 >University of Illinois > ------------------------------------ John, The following is from one of my handouts on Downbearing. It is not = specifically aimed at Baldwin pianos -- we use vertical hitch pins on a = lot of pianos besides Baldwins -- but you might find the procedure = useful. Note that you do not need a bubble gauge although one is useful = to verify your settings after the piano is strung and at pitch. This = procedure is normally used with a chart listing the approximate = downbearing specifications that we recommend using with our soundboard = and rib sets. I've not included the chart because the numbers wouldn't = be applicable to the piano you are restringing. Use the downbearing = specifications you would normally use with a piano of this type, size = and age. Del ------------------------ PROCEDURE #2. FOR PIANOS USING STRAIGHT VERTICAL HITCH PIN STRING = TERMINATION, I.E., PIANOS WITH VERTICALLY ADJUSTABLE STRING PLACEMENT = POINTS.=20 1) At each scale point indicated in the following chart*, pass a taut = cord or straight edge from the V-bar (or agraffe hole) to the hitch pin = panel parallel to the piano string line. Lower the cord or straight edge = over the hitch pin panel until it just touches the bridge and one side = of the appropriate hitch pin.=20 (Alternate) For pianos not fitting the indicated pattern, use the = first, center and last unisons of each logical section. If the tenor = section is particularly long, one additional pin should be located in = the center of the section and used as if it were an end pin.=20 2) Make a small mark on the hitch pin at the point of contact.=20 (Alternate) Measure the distance from either the top of the hitch pin = or the top of the plate surface to the point of contact and record this = number.=20 3) From this point, measure down the distance listed in the chart and = place another small mark on the hitch pin at that point. Repeat the = process for each unison listed in the chart.=20 (Alternate) Subtract the distance listed in the chart and record this = number.=20 4) String the piano and chip to pitch approximately one to two steps = flat. Don't worry too much about the actual pitch of the strings or = where they end up on the hitch pins at this point. Just make sure they = do not rest on the plate. You're just applying enough tension to the = strings so that they will stay in place while you adjust them. 5) Adjust the strings on each hitch pin to the marks made in Step #2.=20 (Alternate) Adjust the strings on each hitch pin to the elevations = recorded in Step #3.=20 6) Level all remaining strings to those set in Step #5, i.e., the = strings of first and last unisons of each sec-tion are used as guides = for the rest of the strings within that section.=20 7) Chip piano to pitch.=20 8) Verify the downbearing settings with a bubble gauge if you have one = available. *Refers to a downbearing specification chart that is not included here. = These specifications refer to the settings on hitchpins associated with = the first, middle and last unisons of each section. Use your own = judgement for the particular piano you are restringing. ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/caut.php/attachments/82/e0/a7/38/attachment.htm ---------------------- multipart/alternative attachment--
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