Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 558
hat is represented in the figure. The points// will approach to one another, and by meansof the arms fh force up one end F of the lever, and depress the other end H. This will obviously tendto open the valve, and to increase the supply of steam. After this action is understood, suppose that bysome… … that when the velocity of the engine is unduly retarded, the spindle performs less than 30 revolutionsper minute, then this expedient becomes a regulator of all the inequalities of velocity arising from thevariations in the amount of resistance to be overcome. The upright spindle may be connected…
Mechanical engineering
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