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power shovel |
Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson | 0.02 sec. |
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power shovel [′pau̇·ər ‚shəv·əl] (mechanical engineering) A power-operated shovel that carries a short boom on which rides a movable dipper stick carrying an open-topped bucket; used to excavate and remove debris. Power shovel A power-operated digging machine consisting of a lower frame and crawlers, a machinery frame, and a gantry supporting a boom which in turn supports a dipper handle and dipper. The machines are powered by on-board diesel engines or by electric motors. Diesel-powered machines utilize a series of clutches and brakes that allow the operator to control various motions. Electric motor machines generally have individual motors for each motion, but occasionally clutches and brakes are used allowing one motor to drive two motions. See Bulk-handling machines, Construction equipment, Hoisting machines How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| The power shovel resembles a dinosaur adrift on the desert landscape--its mission is to scour the desert. Take for example The Captain, a Marion 6360 power shovel that operated from 1965 through the early 1990s in an open-pit coal mine in Illinois. The metalcasting facility of Marion Power Shovel, Marion, Ohio, is only steps away from reopening its doors after being shut down eight years ago. |
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