. 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. 420,Siegel TANDEM WORM-GEAR ELECTRIC ELEVATOR. Cooper store, N. Y. Hindley type. Geared 46 to i for a speed of the car of 100 feet per min-ute with a motor speed of470 revolutions per from current tocar service 70 per double worm and in-terl
. 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. 420,Siegel TANDEM WORM-GEAR ELECTRIC ELEVATOR. Cooper store, N. Y. Hindley type. Geared 46 to i for a speed of the car of 100 feet per min-ute with a motor speed of470 revolutions per from current tocar service 70 per double worm and in-terlocking gears contributeto the safety of the
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Keywords: ., bookauthorhiscoxgardnerdexter18, bookcentury1900, bookdecade1910
