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’ -ssociation anonymous
the traveling engineers’ -ssociation anonymous
the traveling engineers’ -ssociation anonymous
the traveling engineers’ -ssociation anonymous
noun
(engineering) a lever with two arms having a common fulcrum at their junction
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a person who installs and repairs bells and their attachments.