Spur gear
Spur Spur, n. [OE. spure, spore, AS. spura, spora; akin to D. spoor, G. sporn, OHG. sporo, Icel. spori, Dan. spore, Sw. sporre, and to AS. spor a trace, footstep, spyrian to trace, track, examine, and E. spurn. [root]171. Cf. {Sparrow}, {Spere}, {Spoor}, {Spurn}.] 1. An implement secured to the heel, or above the heel, of a horseman, to urge the horse by its pressure. Modern spurs have a small wheel, or rowel, with short points. Spurs were the badge of knighthood. [1913 Webster]

And on her feet a pair of spurs large. --Chaucer. [1913 Webster] [1913 Webster]

2. That which goads to action; an incitement. [1913 Webster]

Fame is the spur that the clear spirit doth raise (That last infirmity of noble mind) To scorn delights and live laborious days. --Milton. [1913 Webster]

3. Something that projects; a snag. [1913 Webster]

4. One of the large or principal roots of a tree. --Shak. [1913 Webster]

5. (Zo["o]l.) Any stiff, sharp spine, as on the wings and legs of certain birds, on the legs of insects, etc.; especially, the spine on a cock's leg. [1913 Webster]

6. A mountain that shoots from any other mountain, or range of mountains, and extends to some distance in a lateral direction, or at right angles. [1913 Webster]

7. A spiked iron worn by seamen upon the bottom of the boot, to enable them to stand upon the carcass of a whale, to strip off the blubber. [1913 Webster]

8. (Carp.) A brace strengthening a post and some connected part, as a rafter or crossbeam; a strut. [1913 Webster]

9. (Arch.) (a) The short wooden buttress of a post. (b) A projection from the round base of a column, occupying the angle of a square plinth upon which the base rests, or bringing the bottom bed of the base to a nearly square form. It is generally carved in leafage. [1913 Webster]

10. (Bot.) (a) Any projecting appendage of a flower looking like a spur. --Gray. (b) Ergotized rye or other grain. [R.] [1913 Webster]

11. (Fort.) A wall that crosses a part of a rampart and joins to an inner wall. [1913 Webster]

12. (Shipbuilding) (a) A piece of timber fixed on the bilge ways before launching, having the upper ends bolted to the vessel's side. (b) A curved piece of timber serving as a half beam to support the deck where a whole beam can not be placed. [1913 Webster]

13. (Mining) A branch of a vein. [Webster 1913 Suppl.]

14. The track of an animal, as an otter; a spoor. [Webster 1913 Suppl.]

{Spur fowl} (Zo["o]l.), any one of several species of Asiatic gallinaceous birds of the genus {Galloperdix}, allied to the jungle fowl. The males have two or more spurs on each leg.

{Spur gear} (Mach.), a cogwheel having teeth which project radially and stand parallel to the axis; a spur wheel.

{Spur gearing}, gearing in which spur gears are used. See under {Gearing}.

{Spur pepper}. (Bot.) See the Note under {Capsicum}.

{Spur wheel}. Same as {Spur gear}, above. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • spur gear — n. 1. a gear having radial teeth parallel to the axle: also spur wheel 2. a system of gearing having this kind of gear: also spur gearing …   English World dictionary

  • spur gear — spur′ gear n. mac a gear having straight teeth cut on the rim parallel to the axis of rotation • Etymology: 1815–25 …   From formal English to slang

  • spur gear — noun gear wheels that mesh in the same plane • Syn: ↑spur wheel • Hypernyms: ↑gear, ↑gear wheel, ↑geared wheel, ↑cogwheel * * * noun also …   Useful english dictionary

  • spur gear — /ˈspɜ gɪə/ (say sper gear) noun Machinery a gear in which spur wheels are employed. Also, spur gearing …   Australian English dictionary

  • spur gear — noun Date: 1823 a gear wheel with radial teeth parallel to its axis called also spur wheel …   New Collegiate Dictionary

  • spur gear — Mach. a gear having straight teeth cut on the rim parallel to the axis of rotation. Also called spur wheel. [1815 25] * * * …   Universalium

  • spur gear — A gear on which the teeth are cut parallel to the shaft. They are not used very often in modern gearboxes because they are noisier than helical gears. Also called straight cut gear …   Dictionary of automotive terms

  • spur gear — noun another term for spur wheel …   English new terms dictionary

  • Spur gear corrected tooth — Spur gear teeth are manufactured by either involute profile or cycloidal profile. Most of the gears are manufactured by involute profile with 20° pressure angle. When two gears are in mesh at one instant there is a chance to mate involute portion …   Wikipedia

  • spur gear wheel — noun see spur gear …   Useful english dictionary

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