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  2. Quincy Mine No. 2 Shaft Hoist House - Wikipedia

    en.wikipedia.org/wiki/Quincy_Mine_No._2_Shaft...

    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 ...

  3. Hoist (device) - Wikipedia

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

    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.

  4. 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 (), although modern large hoists use alternating current drives that ...

  5. List of obsolete technology - Wikipedia

    en.wikipedia.org/wiki/List_of_obsolete_technology

    Obsolete technology Replacement Still used for Bathing machine: No longer required due to changing social standards of morality Hourglass: Clock: Tasks where a fixed amount of time can be measured with a low-tech solution: Exposure time tracker in saunas (where electronics might be damaged by the heat or ultraviolet light); retro kitchen timers, board games, other short-term timers.

  6. Crane (machine) - Wikipedia

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

    Tower cranes are used extensively in construction and other industry to hoist and move materials. There are many types of tower cranes. Although they are different in type, the main parts are the same, as follows: Mast: the main supporting tower of the crane. It is made of steel trussed sections that are connected together during installation.

  7. DMSMS - Wikipedia

    en.wikipedia.org/wiki/DMSMS

    A parts list that contains an end-of-life cycle part before a system has gone into production. The core methodology for DMSMS analysis has been to make direct contact with the supplier of an item. Direct contact takes the form of phone, e-mail or other communication with a competent supplier representative.