Bechstein B hammer rake / more thoughts

[John Delacour]

At 08:29 -0400 21/6/08, Dean May wrote:

>From an engineering perspective (at least, this engineer's perspective),
>maximum energy transfer of the rotating mass of the hammer would dictate
>that the hammer be perpendicular to a line from the tip of the hammer to the
>center pin. That's not likely to happen given the physical constraints we
>find ourselves with.

There are no such constraints with the upright action, so can you 
explain why only Steinway, to my knowledge, on the old K uprights 
etc., implemented any such arrangement for a while and then abandoned 
it?  In 120 years none of the great makers seem to have acknowledged 
the brightness of this great light.

JD