Capstan

Capstan refers to several things:

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• Nautical capstan
• Tape recorder capstan

in both of these, the capstan is analogous to a rack and pinion arrangement found in gear systems.

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Also:

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• Capstan, the cigarette company

Rack and pinion: A rack and pinion is a pair of gears which convert rotational motion into linear motion. The circular pinion engages teeth on a flat bar - the rack. Rotational motion applied to the pinion will cause the rack to move to the side, up to the limit of its travel....

Gear: :For other uses of this term, see Gear (disambiguation)....