| 21. | The worm gear ensures that the capstan cannot turn without a movement on the knob; it also allows precise tuning.
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| 22. | The headstock ( 1 ) contains the metal machine heads ( 1.1 ), which use a worm gear for tuning.
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| 23. | He was an early electric motor designer and, paid particular attention to bogie cars and worm gear in this connection.
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| 24. | The rotor is not allowed to turn freely and it can be mechanically shifted by means of a worm gear.
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| 25. | It entered a worm gear at the pivot clamp, then continued to the nose clamp where it entered another worm gear.
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| 26. | Occasionally a worm gear is designed to run in reverse, resulting in the output shaft turning much faster than the input.
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| 27. | The key on the tuning machine turns a metal " worm ", which drives a worm gear that winds a string.
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| 28. | It entered a worm gear at the pivot clamp, then continued to the nose clamp where it entered another worm gear.
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| 29. | This arrangement enabled them to be raised by rotation, though still exposed, or lowered in fifteen seconds through a worm gear drive.
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| 30. | Fortunately, one advantage the drive on the BL2 locomotives model, was the fact that the trucks and worm gears covers were exposed.
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