to sink a shaft
111Lignum vitae — is the heartwood of species of the genus Guaiacum , the trees of which are also called guayacan.The name is Latin for wood of life , and derives from its medicinal uses. Other names are palo santo, holy wood, greenheart and ironwood (one of many) …
112Crane (machine) — A modern crawler type derrick crane with outriggers. The latticed boom is fitted with a jib. A crane is a type of machine, generally equipped with a hoist, wire ropes or chains, and sheaves, that can be used both to lift and lower material …
113Compressed-air energy storage — (CAES) refers to the compression of airto be used later as energy source. At utility scale, it can be stored during periods of low energy demand (off peak), for use in meeting periods of higher demand (peak load). Alternatively it can be used to… …
114Concrete mixer — This portable concrete/mortar mixer has wheels and a towing tongue so that it can be towed by a motor vehicle and moved around the worksite by hand, and its rotation is powered by mains electricity. The lever allows the concrete/mortar to be… …
115Bulk carrier — The Sabrina I is a modern Handymax bulk carrier. Class overview Name: Freighter Subclasses …
116SMS Von der Tann — SMS stands for Seiner Majestät Schiff , or His Majesty s Ship in German.] was the first battlecruiser built for the German Kaiserliche Marine, as well as Germany s first major turbine powered warship. At the time of her construction, Von der Tann …
117Escape trunk — An escape trunk is a small compartment on a submarine which provides a means for crew to escape from a downed submarine; it operates on a principle similar to an airlock, in that it allows the transfer of persons or objects between two areas of… …
118Elsecar Collieries — The Elsecar Collieries were a series of coal mines sunk in and around Elsecar, a small village to the south of Barnsley in what is now South Yorkshire, but was traditionally in the West Riding of Yorkshire.The last operating mine Elsecar Main… …
119Old Law Tenement — Old Law Tenements are tenements built in New York City after the Tenement House Act of 1879 and before the New York State Tenement House Act of 1901. The 1879 law required that every inhabitable room have a window opening to plain air, a… …
120German battleship Scharnhorst — Scharnhorst Career (Nazi Germany) …
