Originally: (in a traditional clock or watch) a wheel having a number of pointed teeth around its edge, at right angles to its plane, forming…
单词 | θ214358 |
释义 | society > occupation and work > equipment > machine > parts of machines > wheel > [noun] > cog or gear > with axles or teeth set at specific angle (9) crown wheel1646 Originally: (in a traditional clock or watch) a wheel having a number of pointed teeth around its edge, at right angles to its plane, forming… mitre wheel1825 = mitre gear n. mitre1844 Short for mitre wheel n. at compounds. Obsolete. skew gearinga1877 Gearing consisting of two cog-wheels having non-parallel, non-intersecting axes. helical gear1888 Belonging to or having the form of a helix; screw-shaped; spiral. Also in combinations, as helical gear, helical tube, helical-cut adj. spiral gear1888 a gear wheel whose teeth are cut obliquely to the axis of the wheel and are curved to form part of what is approximately a spiral or helix; esp. a… skew gear1908 see skew gearing n. helical1913 = helical gear at sense A. spiral bevel gear1915 a bevel gear that is also a spiral gear. |
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