This is a multi-part message in MIME format. ---------------------- multipart/mixed attachment Took it out and looked it over. There is a crumbling flap valve on top that lets air escape freely but not enter, a bleed hole in the bottom, and a spring that closes the bellows. This fallboard is one where if you don't hold the knobs as you are opening it, falls back inside the piano. Definitely a slow open. Pics of top and bottom attached. -Mark From: "gordon stelter" <lclgcnp@yahoo.com> > Maybe no need for a spring. Maybe just bleeds slowly > to prevent rapid a fllboard-finger-smashing action, > and one-way flap valve to allow air back out? > Thump > > --- Mark Davidson <mark.davidson@mindspring.com> > wrote: > >> >I am intrigued about the small bellows on the >> inside of the >> >fallboard. Any chance for a pic of that mechanism? >> >Jim >> >> I'll get a pic tonight. It's attached to the case >> on the left inside, >> about 0.5" wide and 4" tall, with a tab that looks >> like it should >> engage somehow with the fallboard. Possibly some >> linkage >> missing. >> >> -Mark ---------------------- multipart/mixed attachment A non-text attachment was scrubbed... Name: pneu_bottom.jpg Type: image/jpeg Size: 32604 bytes Desc: not available Url : https://www.moypiano.com/ptg/pianotech.php/attachments/f5/76/f2/ff/pneu_bottom.jpg ---------------------- multipart/mixed attachment A non-text attachment was scrubbed... Name: pneu_top.jpg Type: image/jpeg Size: 72729 bytes Desc: not available Url : https://www.moypiano.com/ptg/pianotech.php/attachments/78/11/22/97/pneu_top.jpg ---------------------- multipart/mixed attachment--
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