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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 328

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 328
f sleeve. The hooks aresharpened where they extend over theflange of the beam so they can bedriven under the brick. 844. GRAVITY ELEVATOR. A simple arrangement for lowering build-ing material in taking down high build-ings. When the upper story is clearedthe wheel is set on the next floor belowand…

Mechanical movements

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