At 8:24 AM -0800 12/14/02, Keith Roberts wrote: >You missed the point. Moisture causes the movement of the felt by swelling >and shrinking. Change in pressure also occurs which forces the fibers to >tighten. Upon drying the fibers stay tightened and the shrinkage pulls the >felt into a denser mass. This reduces the pressure on the centerpin, freeing >it up. You don't have to move the centerpin for the alcohol/water treatment >to work. We may be making two separate points. My point was that while Chinese handcuffs are a great way to demonstrate the tightening of a sleeve around a rod, when the sleeve is an action bushing and the rod is a rotating pivot, it's a horse of a different fedora. We've both given nearly identical descriptions of the alc/H2O process. >If oil is washed out by the alcohol, I consider that a change in chemical >make-up. It hadn't occurred to me that an oil coating on the fiber could be considered part of the "the (inherent, sic.) chemical make-up of the felt". >Quite the storm ripping in here. >I best prepare for the power going down. Is that a sandstorm or a monsoon. We had 6" of heavy wet snow on Thursday, but no downed tree limbs. Bill Ballard RPT NH Chapter, P.T.G. "No one builds the *perfect* piano, you can only remove the obstacles to that perfection during the building." ...........LaRoy Edwards, Yamaha International Corp +++++++++++++++++++++
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