| 单词 | quarter-sight |
| 释义 | > as lemmasquarter-sight quarter-sight n. Military (now historical) (chiefly in plural) a sight (sight n.1 14b) engraved on the base ring of a cannon in quarter degrees and used to set its elevation. ΚΠ 1840 Penny Cycl. XVI. 483/2 A scale of quarter degrees is graduated on the base ring... These quarter-sights, as they are called, serve to give the gun an elevation not exceeding three degrees. 1860 H. Douglas Treat. Naval Gunnery (ed. 5) iv. ii. 446 The line may be taken over the top of the piece, and the elevation afterwards regulated by the quarter-sight. 1876 G. E. Voyle & G. de Saint-Clair-Stevenson Mil. Dict. (ed. 3) 385/2 In smooth-bore guns, quarter-sights are cut on the upper quarter of the base ring, and numbered up to 3°. 1911 J. R. J. Jocelyn Hist. Royal Artillery i. 27 Quarter-sights were cut on the 28-pounders and lower natures. 2004 C. Henry & B. Delf Napoleonic Naval Armaments i. 15 The only standard sights available to the naval gunner were the quarter sights engraved on the breech ring. < as lemmas |
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