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Thumbnail for 'Chemical storage area'
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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]
Thumbnail for 'Soda ash mixing machine'
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Part of the soda ash mixing machine at the Gilman Mine. Soda ash was used in processing the ore along with copper sulfate. An electric motor to power the mixer sets atop the mixing bucket.
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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]
Thumbnail for 'Lifting transformers'
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Crane lifting transformers into place at Gilman.
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Crane at Gilman power plant moving transformers. The building in the left background housed the post office, mercantile, and grocery store.
Thumbnail for 'Setting transformers'
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Transformers being lifted into place by a Weicker crane at Gilman. The main power line came over Turkey Creek (near Red Cliff) to Gilman.
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Weicker crane being "blocked" during transformer unloading operations at the Gilman power plant. Smiling onlookers at right.
Thumbnail for 'Electrical transformers'
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Electrical transformers, prior to unloading at Gilman, on a Weicker transfer and storage truck.
Thumbnail for 'Connecting transformers'
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Installing new transformers at Gilman. The tanks at the back of the unit are for cooling purposes.
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Transformers that were replaced being hauled by Weicker at Gilman.
Thumbnail for 'Mine stope'
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Mine stope showing the reinforcing timbers used. On the left side of the picture is a thermometer used to monitor temperatures.

72. Piping

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Underground pipes used to move water and chemicals for the ore milling processes. A group of fans is seen in the bottom background, providing some of the ventilation in the mine at Gilman.
Thumbnail for 'Soda ash machine'
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Platform leading to the soda ash machine at the Gilman Mine. Soda ash (also called washing soda, sodium carbonate Na2CO3) was one of the chemicals used to clean the ore. The large pipe on the left is for ventilation of the soda ash work area.
Thumbnail for 'Fork lift loading soda ash'
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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.
Thumbnail for 'Chemical storage'
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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]
Thumbnail for '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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Steam control valves at the mill in Belden. These were located between the dryer and the loading tippel.
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Steam room controls located between the dryer building and loading tippel at Belden.
Thumbnail for '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.
Thumbnail for 'Flume and conveyor'
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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]