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mining (105)

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UNITED STATES: 1940s: Drawing of mine shaft layout. Bonne terre dolomite on mine shaft illustration. Animation of miner reaching section of ore. UNITED STATES: 1940s: Miner prepares metal pole in mine shaft. Drill bores through rock. Dust and water from drill hole in rock. UNITED STATES: 1940s: pillar of rock in mine shaft. Miner abseils down underground rock wall. UNITED STATES: 1940s: Mine train passes through weighing station. Mine notes down weight of rock. UNITED STATES: 1940s: Machine dry crushes ore from mine. Rock falls into machine. UNITED STATES: 1940s: Revolving mill pulverises ore pulp. UNITED STATES: 1940s: wet pulp in mill filter. Lead concentrate filter process. UNITED STATES: 1940s: lead sediment drops onto conveyor from filter machine. UNITED STATES: 1940s: Man sets fire to powder on machine. UNITED STATES: 1940s: Factory workers clean out blast furnace UNITED STATES: 1940s: Vehicle carries vat of boiling liquid along tracks to processing station. Transfer of lead to refinery. Metal poured into container in factory. UNITED STATES: 1940s: factory operator scoops metal from racks on machine. Man skims molten metal with paddle UNITED STATES: 1940s: lead in telecommunication wires and structures. UNITED STATES: 1940s: Animation of digger moving rocks from mine shaft. Two miners install scaffolding against mine shaft rock. UNITED STATES: 1940s: Miner sets up small drill in underground shaft. UNITED STATES: 1940s: Miner scoops up loose rock with digger. Miner uses machine to move rock from floor to cart. View above digger. Train carries rocks in mine. Miner abseils down rope. UNITED STATES: 1940s: Mine shaft train stops to pick up miner. Trains pass each other in mine. UNITED STATES: 1940s: ore travels along conveyor belt to crusher. Electro magnet removes metal from rocks on conveyor belt UNITED STATES: 1940s: Man puts hand in liquid in machine. Man looks at sample size. UNITED STATES: 1940s: man removers cover from lead concentrate hopper. Lead concentrate inside hopper. UNITED STATES: 1940s: mill workers walk next to cylindrical gas dryer machine in factory
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