单词 | oropesa float |
释义 | > as lemmasOropesa float attributive, esp. in Oropesa float, Oropesa sweep. Designating a minesweeping method or device (see quot. 1939) developed and tested on the Oropesa, or apparatus employed in this.The device was first used to clear mine barrages after the First World War (1914–18). ΘΚΠ society > armed hostility > hostilities at sea > naval weapons and equipment > [noun] > mine-sweeping devices sweep1775 mine dredger1904 paravane1916 otter1920 Oropesa float1939 1939 War Illustr. 9 Dec. 399/2 Minesweepers work in pairs, with each unit 300 to 500 yards apart. Between them, sometimes suspended from two sets of apparatus called Oropesa floats, is drawn the sweep wire, which has a series of steel cutters. Should this come into contact with a mooring cable, the mine will rise to the surface and it can then be destroyed by gunfire. 1940 Manch. Guardian Weekly 12 Apr. 297 A little farther on a minesweeper was being reconditioned, grim-looking with bristling gun, and oropesa sweeps. 1949 J. S. Cowie Mines, Minelayers & Minelaying vi. 105 The spread of an Oropesa type of sweep. 1965 K. Langmaid Approaches are Mined! ii. vii. 138 The introduction of..the Oropesa Float made it possible for a single vessel to sweep a wide area in a reasonably short time. 1993 Sentinel Feb.–Mar. 27/1 The oroposea [sic] sweep involves one ship and is used when the depth of the mine is known. < as lemmas |
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