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The Harrington Hump is a modular, easy-to-install system by which the height of a railway platform can be increased at relatively low cost. The system takes its name from Harrington railway station in Cumbria, England, which is the location of the first production version. Since 2011, Harrington Humps have been installed slowly at other railway ...
Hoist atop an elevator. A hoist is a device used for lifting or lowering a load by means of a drum or lift-wheel around which rope or chain wraps. It may be manually operated, electrically or pneumatically driven and may use chain, fiber or wire rope as its lifting medium.
Harrington railway station is a railway station serving the village of Harrington in Cumbria, England. It is on the Cumbrian Coast Line , which runs between Carlisle and Barrow-in-Furness . It is owned by Network Rail and managed by Northern Trains .
Headframe of the #1 Shaft at Oyuu Tolgoi. A steel headframe is less expensive than a concrete headframe; the tallest steel headframe measures 87 m. [4] Steel headframes are more adaptable to modifications (making any construction errors easier to remedy), and are considerably lighter, requiring less substantial foundations.
Headroom refers specifically to the distance between the top of the subject's head and the top of the frame, but the term is sometimes used instead of lead room, nose room or 'looking room' [1] to include the sense of space on both sides of the image. The amount of headroom that is considered aesthetically pleasing is a dynamic quantity; it ...
The Harrington rod (or Harrington implant) is a stainless steel surgical device. [1] Historically, this rod was implanted along the spinal column to treat, among other conditions, a lateral or coronal-plane curvature of the spine, or scoliosis. Up to one million people had Harrington rods implanted for scoliosis between the early 1960s and the ...
A drum hoist (steel wire rope 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 direct current drives utilizing Ward Leonard control machines and later solid-state converters (), although modern large hoists use alternating current drives that ...
The Other America: Poverty in the United States is Michael Harrington's best known and likely most influential book. He was an American democratic socialist, writer, political activist, political theorist, professor of political science, radio commentator, and founding member of the Democratic Socialists of America .
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