No. 8 .Shaft, Britannia Mines
PAUL w. BILLWILLER
THE term 'automatic' usually implies some complicated, intricate device that does the work of attendants or operators. At the Tennessee Copper Company's mills a simple combination of two common, ordinary pieces of standard equipment controls the grinding and classification without the presence of operators. To start the plant at the beginning of the week, motor switches are thrown in and the water valves opened. To shut down the plant at the week end, the motor switches are pulled and the water valves closed.
Equipment, Feeders, Grinding, grinding, ore, plant, reasonable, week end, Operators, Ore, Ores, Water, Waters