| 单词 |
Kingston |
| 释义 |
Kingston2 Naut.|ˈkɪŋstən|
The name of John Kingston, 19th-century British dockyard foreman, used attrib. and absol. († and in the possessive) to designate a kind of conical valve he invented for use in the sides of ships below the water-line which opens outwards with a screwing action.
1846J. Bourne Treat. Steam Engine xi. 223/1 In modern steam vessels Kingston's valves are..used, which consist of a spindle or plate valve fitted to the exterior of the ship, so that if the internal pipe or cock breaks, the external valve will still be operative. 1859Reed's New Guide Bk. Local Marine Board Exam. 62 (heading) Boiler valves and cocks...Kingston valves. 1883A. E. Seaton Man. Marine Engin. xvi. 301 For all large inlets the Kingston valve is preferable, as it acts as a non-return valve in case of the spindle breaking, and can then always be worked by simply forcing it outwards. Ibid. 303 A valve may be fitted in lieu of a cock to even the smallest Kingston. Ibid., In the Navy, Kingston valves are fitted to all inlets and blow-off pipes. 1905E. M. & B. Donkin tr. Bauer's Marine Engines & Boilers 418 Most of the valves in merchant ships consist of ordinary valves opening inwards, but on warships the old so-called ‘Kingston’ valves are still frequently met with. 1933‘L. Luard’ All Hands 124 Drop of air in three main. Open three Kingston. Close air. Open three vent. 1966P. E. Segditsas Elsevier's Naut. Dict. 111 Kingston valve; sea cock. |
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