David, I find it interesting that you refer to all these actions with jack assist springs as "
Illimitable
Repetition Actions". While I am familiar with the spring mechanism and have seen in it various European brands, I have only seen reference to the term "
Illimitable" in Canadian Bell pianos
from Guelph, Ontario. They claimed to have patented that feature in 1900. (I have little doubt it was used earlier by Bechstein et al.) Perhaps it was more of a trademark of a name (Illimitable) than a patent?
In any case, in my opinion, the term "
Illimitable Action" really only applies to the original Bell pianos that had this feature - they were the only ones to call it such. It was strictly a marketing term. The word "illimitable" itself is so arcane (and not descriptive or self-explanatory at all), I think we should limit its use to the only piano to which it was applied.
Repetition assist or other would probably be best when speaking of this same feature in other brands.
jg
PS Parisian action makers starting with G could have been Gehrling & Douillet or Gerhling Fils
On Monday, December 2, 2013 4:35:41 PM UTC-8, David Boyce wrote:
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