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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 (1914)

Hiscox, Gardner Dexter, 1822?-1908 · New York, N. W. Henley Publishing · leaf 330

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, 1914, leaf 330
wn high build-ings. When the upper story is clearedthe wheel is set on the next floor belowand so on. The brake controls the dif-ference in weight between the empty andloaded barrow. This method of lowering the materialin taking down the old buildings, avoidsthe dust nuisance made by dischargingthe… … Brace /I ■ Vf^ 1st , . Barrow r. Brae Braceoor \Floor Floor

Mechanical movements

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