The steam engine familiarly explained and illustrated; with an historical sketch of its invention and progressive improvement; its applications to navigation and railways; with plain axioms for railway speculators (1849)
Drawn iy /,<■ _l,,r/,„, … f t± DOUBLE-ACTING STEAM ENGINE. 107 consists its whole efficacy as a regulator. Its regulatingpower is limited, and it is only small changes of velocitythat it will correct. It is evident that such a velocity as, onthe one hand, would cause the balls to fly to the extremityof their play, or, on…
Steam-engines
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