- 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.
Origin of bell crank
First recorded in 1880–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for bell crank
A short rope spliced round a thimble in the eye of the bell-crank, with a double wall-knot crowned at its end.The Sailor's Word-Book
William Henry Smyth
The car is drawn to the rear end of the track and held by the bell-crank lever A (Plate 23).Langley Memoir on Mechanical Flight, Parts I and II
S. P. (Samuel Pierpont) Langley and Charles M. (Charles Matthews) Manly
Referring to Fig. 23, A is a bell-crank which turns loosely upon the valve stem V.
When in operation, the bell-crank is rotated in the direction of the arrow by the action of the wrist-plate and connecting-rod.
This in turn operates the lever L through rod R and a bell-crank attachment, as shown in the right-hand view.
- engineering a lever with two arms having a common fulcrum at their junction
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012