boom of a crane or derrick

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• Crane (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 …   Wikipedia

• crane — /krayn/, n., v., craned, craning. n. 1. any large wading bird of the family Gruidae, characterized by long legs, bill, and neck and an elevated hind toe. 2. (not used scientifically) any of various similar birds of other families, as the great… …   Universalium

• Crane — /krayn/, n. 1. (Harold) Hart, 1899 1932, U.S. poet. 2. Stephen, 1871 1900, U.S. novelist, poet, and short story writer. * * * I Any of 15 species (family Gruidae) of tall wading birds that resemble herons but are usually larger and have a partly… …   Universalium

• Derrick — For other uses, see Derrick (disambiguation). Derrick of Ocean Star Offshore Oil Rig Museum, Galveston, Texas A derrick is a lifting device composed of one tower, or guyed mast such as a pole which is hinged freely at the bottom. It is controlled …   Wikipedia

• derrick — /der ik/, n. 1. Mach. a jib crane having a boom hinged near the base of the mast so as to rotate about the mast, for moving a load toward or away from the mast by raising or lowering the boom. 2. Also called oil derrick. the towerlike framework… …   Universalium

• boom — boom1 boomingly, adv. /boohm/, v.i. 1. to make a deep, prolonged, resonant sound. 2. to move with a resounding rush or great impetus. 3. to progress, grow, or flourish vigorously, as a business or a city: Her business is booming since she… …   Universalium

• boom — I [[t]bum[/t]] v. i. 1) to make a deep, prolonged, resonant sound 2) to move with a great rush 3) to progress, grow, or flourish vigorously: Business is booming since we enlarged the store[/ex] 4) to announce or give forth with a booming sound… …   From formal English to slang

• Crane (railroad) — Rail Crane Czech PW maintenance crane …   Wikipedia

• Crane vessel — Wind Lift I, Emden harbor, Emden, Germany …   Wikipedia

• derrick — /ˈdɛrɪk / (say derik) noun 1. any of various devices for lifting and moving heavy weights. 2. the tower like framework over an oil well or the like. 3. a crane, usually stationary, carrying lifting tackle at the end of a boom or jib. –verb (t) 4 …  

• crane — I (New American Roget s College Thesaurus) n. heron; derrick. See elevation, angularity. v. stretch, rubberneck. See vision. II (Roget s IV) n. Syn. lift, derrick, davit; see elevator 1 . III (Roget s 3 Superthesaurus) n. hoist, lift, boom, davit …   English dictionary for students