Who picked that name?
Noun
dedendum (plural dedendums or dedenda)
The difference between the radius of the pitch circle of a gear and its root circle
Update, thanks Dave,
Page 42 of http://storage.lib.uchicago.edu/pres/2014/pres2014-1106.pdf
5 comments:
OK, here's my shot at it:
"Dedenda" can also mean "to deduct or to take away" (opposite of "adenda" which is an arcane spelling of "addenda").
In this piece of literature from the Brill Company on pages 42 and 43 the advantage of the "Dedenda Gong" is touted as the fact that the hammer instantly moves away from the gong ("...bringing it away from the gong...), resulting in a clear, crisp note like that produced by a piano.
So anyway that's my shot at how they got the name.
oops forgot the link:
http://storage.lib.uchicago.edu/pres/2014/pres2014-1106.pdf
Good theory ..... and the link is great, thanks. I have to get better at finding those old tech book pdfs.
Found one today. What a piece of history,ringing it thinking no one alive would have ever heard it.
Amazing! Could you send a picture? I'll add it to the post. You can send to gerad@vanwyngaarden.ca
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