Explosives
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1) Drilling
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Miner using a compressed air rock drill at the Gilman Mine. A battery operated miner's light is attached to his helmet, with the cord running to the light.
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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.
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Miner's helper assisting with tamping dynamite prior to blasting the exposed rock face. Both miners have the battery powered safety lights connected by the long cord to a pouch on their waists.
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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.
7) 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.
