20 Terms
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Mineral mining
The extraction of valuable minerals or other geological materials from the earth for economic interests.
Industry: Mining
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Mineral mining
Paternoster pump
Mining; General mining
A chain pump; named from fancied resemblance of the discs and endless chain to a rosary.
Breakaway chain
Mining; General mining
A chain used across openings to mantrips and personnel carriers to prevent miners from falling out of a moving vehicle.
Safety chain
Mining; General mining
A chain used across openings to mantrips and personnel carriers to prevent miners from falling out of a moving vehicle.
Choker
Mining; General mining
A chain or cable so fastened that it tightens on its load as it is pulled.
