capstan

capstan
[ˈkapst(ə)n]
noun
  1. a broad revolving cylinder with a vertical axis used for winding a rope or cable, powered by a motor or pushed round by levers
    绞盘,卷扬机
    ■the motor-driven spindle on a tape recorder that makes the tape travel past the head at constant speed
    (录音机的)主动轮
语源
  1. late Middle English: from Provençal cabestan, from cabestre 'halter', from Latin capistrum, from capere 'seize'
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