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July 26, 2012

Electromagnetic separator

Filed under: Item of the Day — Lizzie Ehrenhalt @ 9:30 am

Electromagnetic separator

Prototype version of the Davis Tube electromagnetic separator used to measure the amount of iron ore in taconite rock samples. The machine consists of six components:  a motor control mounted on plywood; a plywood shelf with a glass cylinder, hose and pipe; electrical switches marked A, B and C and mounted on a triangular box; a brass rail and motor assembly with toggles and an off/fast dial; a glass bottle; and a glass cylinder. It was invented by E.W. Davis of Minneapolis circa 1916 and manufactured by the Cutler-Hammer Company.

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