concrete headframe

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• Shaft mining — Abandoned mine shafts in Marl, Germany. A …   Wikipedia

• Cliffs Shaft Mine Museum — This article is about the former iron mine in Marquette County, Michigan. For the former copper mine in Keweenaw County, Michigan, see Cliff mine. Cliffs Shaft Mine Old headframe, built 1919 …   Wikipedia

• 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

• Historical buildings and structures of Zion National Park — Multiple Resources for Zion National Park U.S. National Register of Historic Places …   Wikipedia

• Underground mining (hard rock) — A three dimensional model of an underground mine with shaft access Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, mainly those containing metals[1] such as ore containing gold …   Wikipedia

• Mining in the Upper Harz — The headframe of the Emperor William Shaft in Clausthal is one of the oldest surviving winding towers in Germany …   Wikipedia

• Coal breaker — A coal breaking plant, depicted on a postcard in 1907. A coal breaker was a coal processing plant which broke coal into various useful sizes. Coal breakers also removed impurities from the coal (typically slate) and deposited them into a culm… …   Wikipedia

• Winding tower — A winding tower also known as a headframe [Howard L. Hartman and Seeley W. Mudd, [http://books.google.com/books?id=DsSmPKEOWDcC SME mining engineering handbook: Vol.2] , Society for Mining, Metallurgy and Exploration, 1992, page 1572.] , poppet… …   Wikipedia