Ore industry
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Lime, soda ash and copper sulfate (used in the zinc ore processing) stored beneath the mill at Gilman. Tracks used by timber trucks and ore cars run down the center of the picture. [Same as 2007.008.123]
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Staging area in the mill at Gilman for the chemicals used to process the mined ore. The fork lift was used to lift pallets of the chemicals for use in the mixing machines. [Similar to 2007.008.072]
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The cyanide injecting machine inside the mill at Gilman. Cyanide was used to clean the ore for processing. A pressure gauge is seen at the top of the injectors.
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Ed Koch starting the repair and reconditioning of a rocker dump mine car. This mine car has become unserviceable since the bottom and end are worn through. The car will receive new steel section plates and be completely reconditioned.
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Floation area for the zinc ore at Gilman. Flotation tables were used to seperate the zinc and lead from the waste in the mining process. Further processing separated the lead and the zinc.
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Flotation area for the zinc ore. Water valves are shown at the bottom of the table.
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Flotation stations in the zinc section of the mill at Gilman. The flotation stations were part of the process of refining the zinc ore.
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Closeup of the flume used to dump "muck' onto the conveyor. This conveyor carried the ore to a series of crushing machines. Conveyors were used extensively in the mine. [related to photo 2007.008.090]
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Fork lift loading soda ash onto a platform for use in the soda ash machine. The fork lift was battery operated.
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Lead flotation cell separating the lead from the crushed rock. Lead and gold were removed from the muck before the zinc was separated.
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Section of the zinc dryer being fitted into place at Belden. Chains and blocks are used to move the equipment into the building.
14) Mucking machine
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Air operated mucking machine. The scoop goes over the mucking machine and empties the ore into the car behind. Miners also used these cars to move mining timbers throughout the mine.
15) Mucking machine
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Mucking machine picking up a load of ore at Gilman. The machine ran on rails and pulled ore cars behind for loading.
16) Mucking machine
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Air operated mucking machine preparing to load material. The scoop would go over the mucking machine and empty the ore into the cart behind. Operator controls were at the left side of the machine.
17) Mucking machine
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A compressed air-driven mucking machine at Gilman. The bucket has just been dumped into the ore car behind and is preparing to recover and pick up another load of ore.
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The New Jersey Zinc Company office in Gilman, Colorado. The cinder block portion, which was the newer portion of the office, was constructed in approximately 1953. [license plate 1953]
19) Ore conveyor
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A mine ore conveyor being loaded from another level down a chute that had chains for filtering out large rocks. A miner stood near the conveyor and picked out pieces of wood and other debris.
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A mine conveyor used for transporting the zinc ore from level to level and to the crusher in the mine. Conveyors were used extensively in the mine. [related to photo 2007.008.067]
