Terry, At 06:36 11/10/2004 -0500, you wrote: >So now I understand you to be saying that a counter bearing bar is the >cast pressure bar that has feet on it and is commonly seen on at least >Mason & Hamlin and Steinway uprights. These are two very different >arrangements. Which is it? You say the counter bearing bar usually has a >duplex configuration cast into it - the ones I've seen simply have a "v" >shaped area to push the string down - however, yes, they are stepped so >that you will have some "idealized" duplex-type speaking length - is that >what you mean by the "duplex configuration"? > >I believe you said before that often the feet on the counter bearing bar >need to be ground down. Why is that? What problem is that designed to solve? Grinding the feet of the pressure bar, which may or may not have a duplex set in it, controls the downbearing. What we have here is a failure to communicate... Campbell and Mason doesn't show that second ridge cast into the plate at all, while Schimmel shows a felt strip there and calls the english terms for it bearing felt(brit)/stringing or counterbearing felt(amer). I took the liberty of calling the cast ridge a counterbearing bar. Sorry for any confrustication... Conrad Hoffsommer, RPT, MPT, CCT, PFP, ACS, CRS. Decorah, IA - Certified Calibration Technician for Bio-powered Digitally Activated Lever Action Tone Generation Systems. - Pianotech Flamesuit Purveyor - American Curmudgeon Society - Apprentice Member and Founder
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