stons. Now momentum of these added weights. The effect of this cess of evolution, in which is embodied the results of ‘* excess balance,” as it is called, will be to cause a vio- many years of painstaking experiment. Considering the many arbitrary limitations of size and weight to lent vertical… … as can be found anywhere to-day. There is one im- will throw it out of balance as it revolves, producing a effect is set up in a horizontal direction by the back portant particular, however, in which the locomotive disturbing moment about the center. and forth momentum of the reciprocating parts.…
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