---------------------- multipart/alternative attachment WHAT A GREAT POST!!! (Perhaps you could get some work in the Journal too!) :) On Feb 21, 2006, at 1:11 PM, Aaron Bousel wrote: > I thought I'd seen every possible configuration of a vertical piano > over the past three decades, but I saw one recently that was new to > me. This is an Estey made in 1891. I'm attaching a sketch I made > but here's how this is supposed to work. The backcheck is in two > parts, and pivots by a center pin towards the top. There is a coil > spring towards the bottom. The idea is that upon release of the > hammer from check the backcheck will give a little push on the > catcher, just enough to help the jack get back against the butt > felt. There's a set screw at the very top of the backcheck which > limits the travel of the piece that pushes the catcher. The piano > was in such poor condition that there was no way I could see if > this theory actually worked in practice, though I don't see why it > wouldn't. > <estey-backcheck.jpg> > > Aaron > > > ------------------------------------------ > Aaron Bousel > Registered Piano Technician, Piano Technicians Guild > abousel@comcast.net > (413) 253-3846 (voice & fax) ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/caut.php/attachments/87/3c/37/30/attachment.htm ---------------------- multipart/alternative attachment--
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