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Electrically activated shaft weights in the mill section at Gilman Mine.
262. Tamping dynamite
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Tamping in dynamite prior to blasting a section at Gilman. Holes that have been prepared are shown with electrical connections to the blasting caps and the dynamite. Joe Fear prepared the blasting caps on the surface. Bottom series of holes were detonated first to keep the miners from having to work so much loose debris - a true demonstration of the principle of gravity.
263. Inserting dynamite
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Inserting dynamite into a drill hole prior to blasting at Gilman.
264. Timber truck
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John Mignone (left) and Jesse Belt examining a reconditioned timber truck at the Gilman mine.
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O.A. McClain, left, watches as Jessie Belt shears bar steel for timber truck reinforcements. The extra stock of bar steel is in the backgound.
266. O. A. McClain
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O.A. McClain standing near equipment manufactured in Chicago and New York for the Gilman Mine.
267. Rebuilt mine car
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O.A. McClain and Roy Long standing beside a completely rebuilt mine car at the Gilman Mine. An "eye" is seen with chains attached at the bottom of the cart. The eye was used to hook the mine cars together in a series of small trains for hauling ore.
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Casts for pouring bearings in the mill. The idea of the machine shop and mill was to make the Gilman Mine as self sufficient as possible in terms of repair and renovation of equipment.
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Flotation area for the zinc ore. Water valves are shown at the bottom of the table.
270. Fine crusher
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Secondary or fine crusher in the Gilman Mine.
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Lee Ferris lubricating a bearing on the main cage at the Gilman Mine.
The safety manager was a very important part of the mining team. Safety was stressed constantly through regular meetings and signs placed throughout the mine.
272. Repairing ore car
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Ed Koch welding a repair on a "yellow car", a rocker dump car, which dumped ore to the side. The frame and wheels can be seen in the lower front foreground.
273. Flotation area
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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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Staff meeting at the Gilman Mine. Left to right, Harold Steinmeyer, Gordon Craig, Frank Maloit, Bob Radabaugh, Dick Sayers, Bill Jude.
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Bob Radabaugh, mine geologist, at the Gilman Mine. The geologists determined areas of optimum ore yield through various methods of inquiry. Bob is shown with one of the low tech methods, the rock hammer, checking the rock formation.
276. Drilling
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Drilling prior to adding dynamite to blast a section for mining at Gilman. Protective clothing was worn to keep the driller from being injured by debris, but we see no eye safety wear.
277. Flotation stations
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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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Moving transformers into place at Gilman. The power plant was located near Hwy 24 and was on the southeast edge of Gilman, above the town.
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Power station upgrade at Gilman. New "arms" can be seen for transformer placement.
280. Setting transformers
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Moving new transformers into place at Gilman, using a combination of crane lifting and human placement.