Private post/Steinway Tone Bell

[Erwinspiano@aol.com]

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  The bell is just a plate stiffening device. A short beam from the belly 
rail to the case in the same area would allow for another nose bolt that could 
take the place of the bell. I cant say the bell has any effect in and of itself 
to influence tone but does stiffen the plate web where it attaches thereby 
influencing tone. There must be a modest down force of the bell bolt to do so 
which by the way will increase the downbearing a small amount (tone effect) These 
bolts also seem to come loose from time to time and cause a weird rattle.

 Does that help?--Dale

     This reference to the "bell" brings to mind a question I have long had. 
S&S piano plates are sometimes billed as cupola plates. Does this refer to the 
shape of the stress holes in the plate, or to Steinway's use of a shop cupola 
furnace to produce sufficient amounts of molten iron for the larger plate ? 

   Glenn
   I don't know. Anybody else? I thought  that term was used in reference to 
the bass bridges on S&S  uprights or have I got it ALL wrong?
    Dale

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