Ripper, William, 1853-1937 · London, New York [etc.] : Longmans, Green and co. · leaf 239
of movement when this speed is slightly exceeded.The friction, however, which is always present more or less in allgovernors prevents absolute isochronism in any governor. In practice, a springh is chosen whose strengthincreases at a rate some-what greater than therate of increase of theradius.… … Fig. 249. namely, 12 inches radius, being the same as before, the centrifugal GOVERNORS. 223 force in this position and the tension of the spring are in cquililjriumand are equal to 355 x 12 = 426 lbs. = he. At the minimum radiusoa, the tension in the spring is now 42G — (45 x 2-5) = 313-5 lbs.…
Steam-engines
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