. The steam-engine and other heat-motors. Fig. 180, speed engines cutting off at i or £ stroke this port-opening re-quires the use of 360,000 for the factor F in the formula a =^—^- (see page 1091 The effect on the lead varies with the position anddistance of the center X from the point A. The Bilgram diagram may be equally well used for the deter-mination of the effects of swinging the eccentric center through anarc. The center X of the arc CCC is, in this case, at rightangles to its true position in the engine. (See Fig. 178.) Shaft-governors.—As in the pendulum type of governor, there] is n
. The steam-engine and other heat-motors. Fig. 180, speed engines cutting off at i or £ stroke this port-opening re-quires the use of 360,000 for the factor F in the formula a =^—^- (see page 1091 The effect on the lead varies with the position anddistance of the center X from the point A. The Bilgram diagram may be equally well used for the deter-mination of the effects of swinging the eccentric center through anarc. The center X of the arc CCC is, in this case, at rightangles to its true position in the engine. (See Fig. 178.) Shaft-governors.—As in the pendulum type of governor, there] is no action in the fly-wheel type of governor except with non-uniform rotation. As long as the engine is revolving uniformly the 344 THE STEAM-ENGINE AND OTHER HEAT-MOTORS. centrifugal stresses are balanced by the pull of a spring of somedescription, and there is almost complete static equilibrium, viz.,there is no motion of the parts relative to one another. With theslightest change in speed not only is there an unbalancing of thecent
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