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Old 07-13-2016, 03:22 PM
Keith Seymore's Avatar
Keith Seymore Keith Seymore is offline
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Join Date: Nov 2007
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Quote:
Originally Posted by MikeNoun View Post
Internals of the 1967-1969 cocktail shaker. Weight is 22.5 pounds each, so that's an extra 45 lbs in back, 45 lbs. in front. The center piece is cast iron and very heavy.
Thank you; it looks like a simple spring/mass system, probably tuned to a specific natural frequency with the spring force supplemented by the internal fluid.

K
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