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Movement 287
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287. Pickering’s governor. The balls are attached to springs the upper end of each of which is attached to a collar fixed on the spindle, and the lower end to a collar on the sliding sleeve. The springs yield in a proper degree to the centrifugal force of the balls, and raise the sleeve; and as the centrifugal force diminishes, they draw the balls toward the spindle and depress the sleeve.

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