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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 (1910)

Hiscox, Gardner Dexter, 1822?-1908 · New York, The N. W. Henley publishing company · leaf 141

An illustration from 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, 1910, leaf 141
The particular featureof this fan is in thenarrow curvedblades set in theperiphery of thewheel and close to-gether, which pre-vents local eddiesand greatly in-creases the effi-ciency of the fan.Davidson patent. 341. Section showing shaft and bracing to the blade drum. … 342. AERIAL TOP. A small windmill madeof any convenient material that is light. A stem atthe center to drop into the ring handle, on which thestring is wound. The rapid rotation made by quicklypulling the string will force the top to a height of 150to 200 feet. There should be a ring of brass…

Mechanical movements

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