Pinning and Tone

[A440A@aol.com]

Fred writes: 
<< Some interesting processes. One that caught my eye especially was the 
gluing of knuckles to shanks. They take a large number of completed shanks 
(completed in the sense of having been machined) and line them up in a 
fixture. 
Then a single, continuous strip of wood is glued in the slot for the knuckle 
core. 
Felt and leather are then added and glued, and, once dry, they are cut apart. 
Result - very consistent knuckle placement. No zig zag. No need for making 
sure you individually adjust each jack (though it's a good idea anyway). >>

      I also was impressed with that idea, until Bill Garlick informed that 
after the long strips were sliced into individual units, they were placed in 
bins.  That meant that shanks from one "set" would be mixed with another and the 
practical result was that any given 88 shanks may have come from several 
different beginnings.  It seems that the concept of consistancy wasn't in place 
for this operation. That is why it is necessary to indivually set the jacks to 
the knuckles,(the same mixing up occurred with the whippens, also. 
Regards,  
Ed Foote RPT 
http://www.uk-piano.org/edfoote/index.html
www.uk-piano.org/edfoote/well_tempered_piano.html
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