bell crank

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• Bell crank — A lever whose two arms form a right angle, or nearly a right angle, having its fulcrum at the apex of the angle. It is used in bell pulls and in changing the direction of bell wires at angles of rooms, etc., and also in machinery. [1913 Webster] …   The Collaborative International Dictionary of English

• Bell crank — A bell crank is a type of crank that changes motion around a 90 degree angle. The name comes from its first use, changing the vertical pull on a rope to a horizontal pull on the striker of a bell, used for calling servants in upper class British… …   Wikipedia

• bell crank — noun Etymology: so called from the bell wires used to transfer motion : a lever having its fulcrum at the apex of the angle formed by its two arms * * * bell cranked, adj. Mach. a lever or rocker having two arms meeting at a pivot at a right… …   Useful english dictionary

• bell crank — bell cranked, adj. Mach. a lever or rocker having two arms meeting at a pivot at a right angle, used for transmitting motion between two parts meeting at an angle. [1880 85] * * * …   Universalium

• bell crank — A double lever in an aircraft control system used to change the direction of motion. Bell cranks are normally used in aileron controls and in the steering system of nosewheels …   Aviation dictionary

• Crank — (kr[a^][ng]k), n. [OE. cranke; akin to E. cringe, cringle, crinkle, and to crank, a., the root meaning, probably, to turn, twist. See {Cringe}.] 1. (Mach.) A bent portion of an axle, or shaft, or an arm keyed at right angles to the end of a shaft …   The Collaborative International Dictionary of English

• Crank axle — Crank Crank (kr[a^][ng]k), n. [OE. cranke; akin to E. cringe, cringle, crinkle, and to crank, a., the root meaning, probably, to turn, twist. See {Cringe}.] 1. (Mach.) A bent portion of an axle, or shaft, or an arm keyed at right angles to the… …   The Collaborative International Dictionary of English

• Crank pin — Crank Crank (kr[a^][ng]k), n. [OE. cranke; akin to E. cringe, cringle, crinkle, and to crank, a., the root meaning, probably, to turn, twist. See {Cringe}.] 1. (Mach.) A bent portion of an axle, or shaft, or an arm keyed at right angles to the… …   The Collaborative International Dictionary of English

• Crank shaft — Crank Crank (kr[a^][ng]k), n. [OE. cranke; akin to E. cringe, cringle, crinkle, and to crank, a., the root meaning, probably, to turn, twist. See {Cringe}.] 1. (Mach.) A bent portion of an axle, or shaft, or an arm keyed at right angles to the… …   The Collaborative International Dictionary of English

• Crank wheel — Crank Crank (kr[a^][ng]k), n. [OE. cranke; akin to E. cringe, cringle, crinkle, and to crank, a., the root meaning, probably, to turn, twist. See {Cringe}.] 1. (Mach.) A bent portion of an axle, or shaft, or an arm keyed at right angles to the… …   The Collaborative International Dictionary of English

• crank — In a mechanical linkage or mechanism, a link that can turn about a center of rotation. The crank’s center of rotation is in the pivot, usually the axis of the crankshaft, that connects the crank to the adjacent link. A crank is arranged for… …   Aviation dictionary