[CAUT] Down Weight Too High With New Hammers

[Ed Foote]

 Paul asks:


>>Am I to understand that the hole in the half-round is not precisely in the
center from front to back, and that it is in fact slightly to the back,
while the bearing is truly "half-round"?  <light bulb moment>

That is what we were told at the factory in 1975.  The only time I was able to tell for sure that the hole wasn't in the middle was a set of 
solid felt half-rounds. they appeared to be the same makeup as the solid felt knuckles that were in use for a while in the late '60's.  I asked about 
these and was told that they had never been sent out of the factory.Huh...
 

>>Ed, when you say that "what was accelerated was the ratio, in theory," do
you mean to say that the ratio was increased?  In other words, it might go
from 1:4.9 up to 1:5 as the key is depressed?

      It has the same effect as clipping the front of the balance rail punching. If the hole were drilled downslope of the crest,  would not the 
key find its fulcrum closer to the front of the key after it had climbed "up hill"?.  

I am not sure what the story is on these half-rounds, I just replace them with what the factory sends out. 
Regards,
Ed Foote
 
 
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