bell crank

American  

noun

Machinery.

1. 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.

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bell crank British  

noun

1. engineering a lever with two arms having a common fulcrum at their junction

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Other Word Forms

• bell-cranked adjective

Etymology

Origin of bell crank

First recorded in 1880–85

Example Sentences

The smaller arm of this bell crank is jointed to a bolt, which shoots into notches, made in one of the segments between which the lever moves.

From A Catechism of the Steam Engine by Bourne, John, C.E.

L, weight at end of bell crank lever, which drives pendulum once each minute, being raised by the electro-magnets.

From Scientific American Supplement, No. 664, September 22,1888 by Various

Movement is given to each feed by the connecting links shown, to each of which motion is in turn imparted by the bell crank lever placed beside the eccentric.

From Scientific American Supplement, No. 613, October 1, 1887 by Various

Q. What is to be done should the vertical arm or bell crank break?

From The Traveling Engineers' Association To Improve The Locomotive Engine Service of American Railroads by Anonymous

The shoes are in the form of a bell crank, upon the exposed end of which is provided a small lug, clearly shown in the cut.

From Modern Machine-Shop Practice, Volumes I and II by Rose, Joshua