Young's speed indicator, with open dial, 1881, on mahogany stand

Young's speed indicator, with open dial, 1881, on mahogany stand

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Young's speed indicator, with open dial, 1881, on mahogany stand

This form of speed of revolution indicator was patented in 1881 by Mr. D. Young. It consists of a small centrifugal governor, loaded by a helical spring and enclosed in a case. When the spring is compressed owing to the centrifugal tendency of the governor balls, the speed of rotation is indicated in rev. per min. by a finger connected with the spring by levers and toothed gearing, by which it is moved over a suitably graduated dial.

Details

Category:
Motive Power
Object Number:
1888-256
Materials:
mahogany (wood)
type:
indicator
credit:
Elliott Brothers