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Portable boat lifts are intended to be used on land, rather than near, in, or on the water. Sometimes referred to as a boat hoist, this equipment holds the waterfcraft out of the water so that maintenance and repairs can be performed. [1] Portable boat lifts may differ in design, cost, weight, and function but they are by definition portable.
A precursor to the canal boat lift, able to move full-sized canal boats, was the tub boat lift used in mining, able to raise and lower the 2.5 ton tub boats then in use. An experimental system was in use on the Churprinz mining canal in Halsbrücke near Dresden. It lifted boats 7 m (23 ft) using a moveable hoist rather than caissons.
The additional cost for installing the hoist was $34,000; [9] the total cost of the project, including building, engine, installation, and ancillary structures, was $370,000. [10] The hoist operated from 1920 until the mine closed in 1931, [2] a victim of falling copper prices. [11] The building and hoist were restored in 1968 and are open to ...
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 ...
A houseboat in Silver Glen Springs, just off Lake George, Florida, US A modern houseboat in Lake Cumberland, near Albany, Kentucky, US A houseboat in Lake Bigeaux, near Henderson, Louisiana, US Houseboating is a very popular recreational activity for groups of people of all ages, aboard houseboats of all varieties ranging from more modest 30-to ...
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.
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