key doublets

[John Baird]

David,

You've introduced a term, "doublets", that I don't find the the
PianoTech or CAUT archives, Piano Parts and Their Functions, Schaff
catalogue, or the Steinway Technical Reference Guide. This piece is
clearly shown in all the diagrams, but nobody gives it a name that I can
find.

I'm glad you brought this up. When adjusting backchecks in the past,
there have been times when it seemed that too little force was required
to bend the backcheck wire in order to get a change in checking height.
I have thought that there might be metal fatigue in the backcheck wire,
that it might be close to breaking. Now I suspect that the wire is just
moving in the enlarged hole in the ... doublet.

Others, pleas comment.

Thank you,

John Baird

"David M. Porritt" wrote:

>  I have a "D" in a recital hall that the doublets don't hold
> backchecks firmly.  The checks and wires have been changed too many
> times I guess.  I called Steinway to see if they sold doublets for the
> keys, and they said no.  They suggested I make some from laminated
> wood, or solid maple. Have any of you had to do this?  This action
> really needs some work done over winter break and that's going to be
> my best opportunity to do it. Any suggestions? dave
>
> _____________________________
> David M. Porritt
> dporritt@mail.smu.edu
> Meadows School of the Arts
> Southern Methodist University
> Dallas, TX 75275
> _____________________________
>