Shaft governors, centrifugal and inertia; simple methods for the adjustment of all classes of shaft governors . inction does not necessarily indicate a struc-tural difference in the governors. Neglecting the difference of swinging or rotatingeccentric, governors can be divided into three groups,depending on structural differences. These groups are as follows: I. Governors with two weights in gravity balance,as already shown in early examples in the Custer,Buckeye and Westinghouse governors. II. Governors with a single weight in gravity bal-ance, with eccentric and governor mechanism. III. Gove
Shaft governors, centrifugal and inertia; simple methods for the adjustment of all classes of shaft governors . inction does not necessarily indicate a struc-tural difference in the governors. Neglecting the difference of swinging or rotatingeccentric, governors can be divided into three groups,depending on structural differences. These groups are as follows: I. Governors with two weights in gravity balance,as already shown in early examples in the Custer,Buckeye and Westinghouse governors. II. Governors with a single weight in gravity bal-ance, with eccentric and governor mechanism. III. Governors with single arm in partial gravitybalance which carries inertia weight, centrifugal weightand eccentric. All the above classes can be operated so as to haveregulation assisted or retarded by inertia and can 20 SHAFT GOVERNORS probably be connected to rotating or a swingingeccentric as desired. A very good illustration of a shaft governor of thefirst class is shown in Fig. 8. The eccentric is mountedon a plate G, pivoted at P and is connected to E B,No. I, and E B, No. 2, by connecting rods, in such a. FIG. 8 manner that the action of centrifugal force in throwingthe weights B B outward causes the center of theeccentric to swing toward the center of the springs pivoted at K rock against the centrifugalforce and hold the weights in a determinate positionfor each speed. The dashpot simply restrains themotion when too rapid and tends to prevent are numerous governors in this class. Fig. 9 represents a notable illustration of a shaft EVOLUTION OF THE SHAFT GOVERNOR 21 governor in Class II. This governor, although con-sisting of a single weight, is still in gravity advantages over those in Class I are a less numberof working parts, simpler construction and less friction.
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