| 摘要 |
<p>Compact centrifugal speed governor... Comprises a spider mounted on a shaft, upon which are mounted three weights, pivotted at one end and constrained by springs at the other. Friction material secured to the outer sides of the weights to form a circular surface. The assembly is surrounded by a stationary drum, the friction pads contacting its inside when the speed exceeds the optimum.</p> |
