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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.
In 1928 came a pumper with fully enclosed cab, the first of its kind from a major U.S. manufacturer, and in 1931 a one-man operation hydro-mechanical aerial ladder hoist used on an 85–ft articulated ladder truck.
His first motorized ladder truck was on a Rambler chassis, and this was followed by others based on Couple Gear, White, Duplex, Nash and Dodge. In 1926 came the first complete Peter Pirsch fire engines; these were 150 to 750 gpm pumpers, chemical and hose trucks powered by 6-cylinder Waukesha engines .
The American Crane Corporation was founded in 1882 as the Franklin Manufacturing Company, and in 1892 the name changed to American Hoist & Derrick. The company manufacturers terrain cranes, crawler cranes and tower cranes.
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 ...
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