[CAUT] Another first

Michelle Stranges stranges@Oswego.EDU
Wed, 22 Feb 2006 17:20:02 -0500


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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)


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