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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 326

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 326
TEXTILE AND MANUFACTURING DEVICES, ETC. 321 … 831. DIAMOND CRUSHER AND MORTAR. Diamondsfor the use of the lapidary are crushed in a mortar, which consists of a cylindrical box, a, and a pestle, b, both madeof hardened steel. A small rough diamond isplaced in the mortar, and the pestle drivendown by a hammer. The pieces of brokendiamond are…

Mechanical movements

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