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

See Examples For:

bell crank

Q. If the horizontal arm of bell crank should break?

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

In this groove is a steel roller upon a pin attached to the bell crank operating the main valve stem.

From Mechanical Drawing Self-Taught by Rose, Joshua

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

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.