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

Q. If horizontal arm of bell crank fails?

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

The gauge rod from the carriage here disengages a bell crank from the end of the long lever shown, and thus prevents the spring to operate the cross shaft and open the dies.

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

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

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

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