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 378
epresents a tray, which forms an annular path for the ball B. Thistray is made of sheet metal, or any other suitable material, and its diam-eter is about four times that of the ball B. It is supported in its centerby a rod, which connects, by a ball-and-socket joint, C, with a platform,D, so that… … 374 PERPETUAL MOTION.
Mechanical movements
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