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Mechanical applicances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical mvements, powers and devices"; (1917)

Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing company · leaf 145

An illustration from Mechanical applicances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical mvements, powers and devices";, 1917, leaf 145
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 y.tem 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 ol brass…

Mechanical movements

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