I think all of you got this right, even without seeing the bar that runs along behind and under the whippen and is pulled up by a very nifty interconnection with the hinge of the soft pedal mechanism and "compensates for lost motion" (ingenious and only Chickering-possible--he must have had his engineers and draftsmen working 24/7!) If I had the time, I'd do the research to find out whether he patented this, but along with all his other weird innovations, it would probably require a U.S. Chickering Patent Office separate from the main one (he probably had as many people filing patents as designing the parts!). Paul -----Original Message----- From: Clark Sprague <CSPRAGUE4 at woh.rr.com> To: Pianotech List <pianotech at ptg.org> Sent: Sat, 2 Feb 2008 6:49 pm Subject: Re: Can you figure out what this does? Paul,? I have seen a mechanism similar to this on an old AB Chase that I did some restoration on.? I think it was a compensator for lost motion when the pedal that raises the rest rail is engaged.? I didn't experiment with it enough to be sure, though. Clark A. Sprague, RPT ----- Original Message ----- From: paulrevenkojones at aol.com To: pianotech at ptg.org Sent: Saturday, February 02, 2008 7:22 PM Subject: Can you figure out what this does? Below, and attached, is a picture of a whippen from a Chickering Bros (ugh) grand. It's the kind with a soft pedal mechanism that raises the hammer rest rail closer to the strings to reduce blow distance. Familiar to anyone? View full size Paul More new features than ever. Check out the new AOL Mail! ________________________________________________________________________ More new features than ever. Check out the new AOL Mail ! - http://webmail.aol.com -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20080202/64f7e711/attachment.html
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