Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 473
ts nre charged and discharged successively in rows. The ore is carried forwardon the endless apron; and the magnet cylinder, by revolving in the same direction as the apron, liftsthe ore, while (he dross is discharged from the apron while passing over the roller. This machine has been in operation… … ELEVATORS. The general term Elevator includes gins, windlasses, cranes, &c.; but since theseare described under their separate heads, in this article are comprehended only those smaller machinesemployed to raise materials in mines, furnaces, factories, and corn-mills. ELEVATORS. 465 Figs. 1301…
Mechanical engineering
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