Steinway mystery knuckle felt

[Stéphane Collin]

Hello Keith.

Some suggested that the felt there would damp the possible noise of the 
top of the jack against the shank on forte playing, due to possible 
action geometry problem.  But even at low checking and at forte blow, I 
see no chance that the jack hits the shank there.  Some suggested that 
it would help the knuckle (roller) to maintain its shape.  Tom Driscoll 
thought about some kind of verdigris sponge.  Finally, this seems the 
least unprobable to me.  Maybe it was impregnated with some anti 
verdigris product.  Still I don't know if this was originally there, or 
added by some later tech. 

Regards,

Stéphane Collin

Keith McGavern a écrit :

> At 5:20 PM +0200 6/18/04, Stéphane Collin wrote:
>
>> ... Does anyone have an idea about what is the purpose of that small 
>> piece of felt carefully glued next to the knuckles in this Steinway A 
>> 1881 action ?  Picture attached.
>
>
> Stéphane,
>
> I don't recall ever seeing a definitive answer posted as to the 
> purpose for this piece of felt? Would you remind me if there was, please?
>
>
> Keith
>
>-- 
>  
>
> Keith McGavern
> Registered Piano Technician
> Oklahoma Chapter 731
> Piano Technicians Guild
> USA