Tends aerial tramway buckets attached to overhead cables and pulleys supported by towers to convey refuse, coal, ore, and other materials ...
Tends pneumatic coal-cleaning table that blows coal dust, sulfur, and other impurities from coal as it passes through preparation plant: Sta...
Removes lumps of slate, wood, wire, clay, or other impurities from extracted minerals passing on conveyor belt, picking table, or shaker scr...
Tends bit-sharpening machine to shape and sharpen detachable bits of mining equipment: Inserts bits into clamps of power-driven revolving dr...
Determines strength and pattern of blast required and charges and detonates explosives in surface or underground mine, pit, or quarry to fra...
Works at foot of haulage slope or plane leading to surface of mine: Engages clips or grips by means of which mine cars are attached to hoist...
Tends furnace that heats perlite to expel volatile material and reduce ore to powder calcine for use as insulating material, plaster, and ...
Pushes mine cars onto and off mine shaft cage and informs workers when cage is used to carry mine personnel: Pushes or pulls loaded cars off...
Controls calciners and allied equipment from instrumented panelboard to heat ore slurry, dry slurry, and drive off impurities: Monitors reco...
Records machine and equipment readings in shift log at specified intervals, examines machines and equipment for malfunctions, and draws comp...
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