Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries (1914)
Hiscox, Gardner Dexter, 1822?-1908 · New York, N. W. Henley Publishing · leaf 142
^ _._ … SS3- PNEUMATIC BALL PUZZLE. A ball laid on the mouth of a flanged tube, as inthe cut, can not be blown off by an air jet, butwill continue to roll around on the flange, asshown by the dotted lines. 334. PNEUMATIC DISK PUZZLE. A light circular plate withpin guides can only be lifted a small distance…
Mechanical movements
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