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Turret |
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turret
1. a small tower that projects from the wall of a building, esp a medieval castle 2. (on a machine tool) a turret-like steel structure with tools projecting radially that can be indexed round to select or to bring each tool to bear on the work turret [′tə·rət] (ordnance) A dome-shaped or cylindrical armored structure containing one or more guns and located on forts, warships, airplanes, and tanks. turret, tourelle A diminutive tower, characteristically corbeled from a corner. Turret a rotating unit on a machine tool, instrument, or apparatus that holds several tools, optical systems, or similar components. The turret is an essential part of turret lathes and is used on many automatic and semiautomatic machines, vertical lathes, and drill presses. It usually has an indexing mechanism for precise setting during rotation, that is, for positioning each tool in the working position. It may be rotated and locked in position automatically, manually, or by command from a program carrier in program-controlled machines. As the turret rotates, the speed and feed rate can be changed simultaneously to match the tool being used. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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