Mechanical movements, powers, devices and appliances; (1903)
Hiscox, Gardner Dexter, 1822?-1908 · New York, The N.W. Henley & co. · leaf 317
1249. RAILWAY STEAMSHOVEL, the Bucyrus model.For railway or other excavating onmovable trucks. 3o8 MINING. … pass the bottom side of the drum thrown off, and drop into a separate compartment 1250. MAGNETIC ORESEPARATOR, Hoffman type. The pulverized ironore is fed to a travelHng ap-ron, which passes over a seriesof magnets beneath the apronand over a drum where themagnetized iron particles areheld to the…
Mechanical movements
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