key doublets

[David M. Porritt]

John:

Thanks for your reply.  I scrambled for the name of that part. I
called some colleagues, checked diagrams in the Steinway Tech
Manual,.... no name.  I recalled that John Hartman had used a name in
his article on backchecks in the June 2001 Journal, (page 26) so I
found it and voile - doublet.  Only John knows if it is right or
not!!

In most parts-naming diagrams it is just treated as part of the key.


dave

*********** REPLY SEPARATOR  ***********

On 11/4/01 at 2:56 PM John Baird wrote:

>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
>> _____________________________
>>


_____________________________
David M. Porritt
dporritt@mail.smu.edu
Meadows School of the Arts
Southern Methodist University
Dallas, TX 75275
_____________________________