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Hoist (mining) — A drum hoist (cables visible) and motor In underground mining a hoist or winder[1] is used to raise and lower conveyances within the mine shaft. Modern hoists are normally powered using electric motors, historically with … Wikipedia
Shaft mining — Abandoned mine shafts in Marl, Germany. A … Wikipedia
Dump truck — For other uses, see Dump truck (disambiguation). A dump truck (or, UK, dumper truck) is a truck used for transporting loose material (such as sand, gravel, or dirt) for construction. A typical dump truck is equipped with a hydraulically operated… … Wikipedia
Robert Campbell Reeve — Robert Campbell (Bob) Reeve (March 27 1902 ndash; August 25 1980) was the founder of Reeve Aleutian Airways.ChildhoodBob Reeve was born in Waunakee, Wisconsin on March 27 1902. He was one of twins, his brother was Richard. Their parents were… … Wikipedia

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