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

Derived Forms

• bell-cranked
  adjective

Etymology

Origin of bell crank

First recorded in 1880–85

Example Sentences

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

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 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

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

The ash pan is provided with two dampers, one at each end, and the front one is operated by the bell crank a c.

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