Bell crank
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.
Historical Examples
Mechanical Drawing Self-Taught Joshua Rose
Modern Machine-Shop Practice, Volumes I and II Joshua Rose
The Traveling Engineers’ Association Anonymous
The Traveling Engineers’ Association Anonymous
The Traveling Engineers’ Association Anonymous
The Traveling Engineers’ Association Anonymous
noun
(engineering) a lever with two arms having a common fulcrum at their junction
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