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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.
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 (), however modern large hoists use alternating current drives that ...
Wire rope is composed of as ... Wire ropes were developed starting with mining hoist applications in the 1830s. Wire ropes are used dynamically for lifting and ...
A wire rope clamp designed to loop wire cable without the losing the integrity of the wire was invented by Oliver Crosby in 1886. [3] American Manufacturing Company invented further enhancements to the construction industry by establishing steam-powered hoists in 1889 and the largest electric hoists, up to 15 hp.
A similar heavy-duty unit with a combination chain and cable became available in 1935 that was used by railroads, but lacked the success of the cable-only type units. [1] A similar tool to a come-along is a cable puller, which does not have a drum and ratchet but directly grips the cable, allowing unlimited lengths of wire rope to be used.
The Aerovia cable car system in Guayaquil, Ecuador La télécabine d'Arrondaz in Valfréjus, France Interior of a gondola at Killington Ski Resort, Vermont Classic 1960s 4-seater monocable gondola lift in Emmetten, Switzerland, built by GMD Müller Interior of a gondola lift station, in this case, an intermediate station where gondolas detach ...
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