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  2. Hoist (mining) - Wikipedia

    en.wikipedia.org/wiki/Hoist_(mining)

    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 ...

  3. Hoist (device) - Wikipedia

    en.wikipedia.org/wiki/Hoist_(device)

    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. The most familiar form is an elevator, the car of which is raised and lowered by a hoist mechanism.

  4. Drum handler - Wikipedia

    en.wikipedia.org/wiki/Drum_handler

    A Drum handler is a piece of mechanical equipment that is used to securely grip, lift and transport cylindrical modules such as steel drums, barrels, plastic drums and fiber drums. It has spring-loaded metal arms to create a tight and secure grip. This equipment is commonly used in chemical and petroleum industries, as well as industries that ...

  5. Cajón - Wikipedia

    en.wikipedia.org/wiki/Cajón

    The cajón is the most widely used Afro-Peruvian musical instrument since the late 19th century. [ 2 ] Enslaved people of west and central African origin in the Americas are considered to be the source of the cajón drum. Currently, the instrument is common in musical performance throughout some of the Americas and Spain.

  6. Level luffing crane - Wikipedia

    en.wikipedia.org/wiki/Level_luffing_crane

    The first of these systems used mechanical clutches between luffing and hoist drums, giving simplicity and a "near level" result. [ 5 ] Later systems have used modern electronic controls and quickly reversible motors with good slow-speed control to the hoist winch motors, so as to give a positioning accuracy of inches.

  7. Crane (machine) - Wikipedia

    en.wikipedia.org/wiki/Crane_(machine)

    Crane (machine) Diagram of a modern crawler crane with outriggers. The latticed boom is fitted with a jib. Manual crane from the late 19th century used for unloading small loads from ships at the Port of Barcelona, Spain. A crane is a machine used to move materials both vertically and horizontally, utilizing a system of a boom, hoist, wire ...

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