| 单词 | jib-beam |
| 释义 | > as lemmasjib-beam jib-beam, jib-pole; jib-crane n. a crane fitted with a jib. jib-frame n. ‘the upright frame at the sides of a marine-engine, connecting the cylinder, condenser, and the framing’ (E. H. Knight Pract. Dict. Mech. 1875). ΘΚΠ society > occupation and work > equipment > lifting or hoisting equipment > [noun] > crane > types of quay crane1821 balance-crane1824 well crane1836 water crane1849 jenny1861 jib-crane1873 stacker1875 Titan1876 transfer-elevatora1884 whip-crane1883 Goliath1888 jigger1891 wharf crane1893 floating crane1903 tower crane1906 hammer-headed crane1908 portal crane1908 hammer-head crane1910 luffing crane1913 cherry-picker1945 stacker crane1959 monotower1963 Transtainer1964 portainer1966 1792 Trans. Soc. Arts 10 222 Hung on a pulley, at the end of the gib-beam. 1873 Daily News 17 Sept. 7/1 The stone was lifted up by a jib crane for the purpose of placing the mortar. 1898 Westm. Gaz. 4 July 6/1 A powerful electric travelling jib crane running on a large elevated track controlling the entire length. 1898 Daily News 17 May 2/6 The jib poles did not go against the brick pier. < as lemmas |
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