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A man engine is a mechanism of reciprocating ladders and stationary platforms installed in mines to assist the miners' journeys to and from the working levels. It was invented in Germany in the 19th century and was a prominent feature of tin and copper mines in Cornwall until the beginning of the twentieth century.
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 ...
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.
The Hiller VZ-1 Pawnee (U.S. Army designation; earlier Army designation: HO-1) is a unique direct-lift rotor aircraft, using contra-rotating ducted fans for lift inside a flying platform upon which the single pilot shifted body weight for directional control.
The wooden parts of the structure have been replaced over the years however remains of ladders, platforms and the rest of the pumping rod may remain within the capped mine shaft. [4] The wooden bucket on the eastern end of the beam has long since rotted however the 2m deep stone lined pit, once draining into the Wanlock Burn, still survives.
A pilot ladder is a highly specialized form of rope ladder, typically used on board cargo vessels [1] for the purposes of embarking and disembarking pilots. The design and construction of the ladders is tightly specified [2] by international regulation under the SOLAS regime. Pilot ladders and other boarding arrangements must be carefully ...