Cam
A cam is a rotating or sliding piece in a mechanical linkage used especially in transforming rotary motion into linear motion or vice-versa. It is often a part of a rotating wheel (e.g. an eccentric wheel) or shaft (e.g. a cylinder with an irregular shape) that strikes a lever at one or more points on its circular path. The cam can be a simple tooth, as is used to deliver pulses of power to a steam hammer, for example, or an eccentric disc or other shape that produces a smooth reciprocating (back and forth) motion in the follower, which is a lever making contact with the cam.
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Famous quotes containing the word cam:
“The youngest stood upon a stane,
The eldest cam and push’d her in.”
—Unknown. Binnorie; or, The Two Sisters (l. 15–16)
“Bonnie George Campbell rode out on a day.
He saddled, he bridled, and gallant rode he,
And hame cam his guid horse, but never cam he.”
—Unknown. Bonnie George Campbell (l. 2–4)
“Sometimes she sank, sometimes she swam,
Until she cam to the miller’s dam.”
—Unknown. Binnorie; or, The Two Sisters (l. 21–22)