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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 179

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 179
420. TANDEM WORM-GEAR ELECTRIC ELEVATOR. Siegel-Cooper store, N. Y. Hindley type. Geared 46 to 1 for a speed of the car of 100 feet per min-ute with a motor speed of470 revolutions per minute.Efficiency from current tocar service 70 per cent.The double worm and in-terlocking gears contributeto the…

Mechanical movements

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