key bushings

[Ted Simmons]

Try the February 1990 Piano Technicians Journal.  There's a full
description of the double-file on page 22.

   Ted Simmons, Merritt Island, FL

><< After removing the felt on a set of keys, I discovered that the WOOD on
> the sides of the front rail mortises were slightly concave.  Heretofore,
> I'd only observed that shape because of the compressed felt.
>
> I would appreciate any suggestions as to how I should proceed before
> installing new felt.
>  >>
>
>Bill Spurlock has developed a method using two files glued together, with
>veneer between to make them the right thickness. I believe it was in the
>Journal at one time in his articles on rebushing. If you can't find it there,
>you could e-mail him to find out if it is in his brochure on rebushing.
>
>Hope this is helpful.
>
>John Elving, RPT
>Sacramento, CA