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

This engagement is effected by means of a bell crank k, operated by a shipper rod k1 on which adjustable dogs are placed, arranged to be operated by the cutter slide f.

From Project Gutenberg

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 Project Gutenberg

The starting bar is shown in position to start the engine, and it is seen that the rod a and bell crank b are in such a position as to open the valve t, and thus admit steam from the dome to the pipe e, whence it passes through pipes f, g and r into the steam chest i, the slide valve v distributing the steam to the cylinder.

From Project Gutenberg

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 Project Gutenberg

But, if we turn to valve v′, which has closed its port and covers it to the amount of the lap, we find that bell crank r′ and its operating rod c′ are in such positions with relation to the wrist plate, that the motion of the latter will have but little effect in moving the bell crank r′.

From Project Gutenberg