Tangent screw

Tangent screw
Tangent Tan"gent, a. [L. tangens, -entis, p. pr.] Touching; touching at a single point; specifically (Geom.) meeting a curve or surface at a point and having at that point the same direction as the curve or surface; -- said of a straight line, curve, or surface; as, a line tangent to a curve; a curve tangent to a surface; tangent surfaces. [1913 Webster]

{Tangent plane} (Geom.), a plane which touches a surface in a point or line.

{Tangent scale} (Gun.), a kind of breech sight for a cannon.

{Tangent screw} (Mach.), an endless screw; a worm. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • tangent screw — noun 1. : a worm that works tangentially on a worm wheel to which it imparts an endless motion 2. : a very fine screw giving a tangential movement for making the final adjustment to an instrument of precision (as a surveyor s transit) …   Useful english dictionary

  • Tangent — Tan gent, a. [L. tangens, entis, p. pr.] Touching; touching at a single point; specifically (Geom.) meeting a curve or surface at a point and having at that point the same direction as the curve or surface; said of a straight line, curve, or… …   The Collaborative International Dictionary of English

  • Tangent plane — Tangent Tan gent, a. [L. tangens, entis, p. pr.] Touching; touching at a single point; specifically (Geom.) meeting a curve or surface at a point and having at that point the same direction as the curve or surface; said of a straight line, curve …   The Collaborative International Dictionary of English

  • Tangent scale — Tangent Tan gent, a. [L. tangens, entis, p. pr.] Touching; touching at a single point; specifically (Geom.) meeting a curve or surface at a point and having at that point the same direction as the curve or surface; said of a straight line, curve …   The Collaborative International Dictionary of English

  • Tangent wheel — (a) A worm or worm wheel; a tangent screw. (b) A wheel with tangent spokes. [Webster 1913 Suppl.] …   The Collaborative International Dictionary of English

  • tangent wheel — Worm Worm (w[^u]rm), n. [OE. worm, wurm, AS. wyrm; akin to D. worm, OS. & G. wurm, Icel. ormr, Sw. & Dan. orm, Goth. wa[ u]rms, L. vermis, Gr. ? a wood worm. Cf. {Vermicelli}, {Vermilion}, {Vermin}.] [1913 Webster] 1. A creeping or a crawling… …   The Collaborative International Dictionary of English

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  • Torsion tensor — In differential geometry, the notion of torsion is a manner of characterizing a twist or screw of a moving frame around a curve. The torsion of a curve, as it appears in the Frenet Serret formulas, for instance, quantifies the twist of a curve… …   Wikipedia

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