Two mine workers push chute car loaded with zinc-ore on track at the zinc mine in Franklin,New Jersey. End-door of the chute car opens and the ore is dumped.
Mine workers secure a mine-back(ceiling) at zinc mine in Franklin,NJ. Workers use timber trusses and blocks to secure the back while zinc ore is being drained from the stope.
Mine workers trim loose ground and large chunks with pick-axes and iron rods at zinc mine in Franklin,NJ. Workers forget to trim muck-pile and huge chunk collapses. Shift boss orders miners to get out in time and avoid an accident.
Electric haulage train stops beneath a chute at zinc mine in Fanklin,New Jersey. Mine worker loads haulage cars with zinc ore through chute. Train approaches a shaft deposit pit. Ore is dumped into the pit from car's gates.
Shows loading of ores into skips at slope shaft of zinc mine in Franklin,New Jersey. Chairs are lowered to support skip in proper position for loading. Mine worker turns a lever that causes the hydraulic ram to push the under-swung gate forward. This cuts the flow of ore to the measuring hopper. Hopper gate opens and discharges the ore. Hopper gate again closes and upper gate opens.
Mine workers carry dynamite in storage magazines stored in tailings pile at zinc mine in Franklin,New Jersey. 'Danger explosion' written outside the facility. Mine worker crimps the surface of the detonators and waterproofs them for easy storage.
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