A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice. . lectric clock has a remontoir escapement. There is no direct connectionbetween the electric force and the pendulum, or between the pendulum and the attractive power, derived from the electric current, is simply employed to raise the samesmall weight to the same height; and the clock-train is carried by the attractive force de-rived from electric currents, whose circuits are completed by the pendulum touching contactsprings. The pendulum is thus
A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice. . lectric clock has a remontoir escapement. There is no direct connectionbetween the electric force and the pendulum, or between the pendulum and the attractive power, derived from the electric current, is simply employed to raise the samesmall weight to the same height; and the clock-train is carried by the attractive force de-rived from electric currents, whose circuits are completed by the pendulum touching contactsprings. The pendulum is thus protected from the influence of change in the force of thecurrent, or from irregular resistances in the train. Fig. 251 is a poispectivc view of thispendulum, with batteries s z attached, and the clock connections and those of its batteriess z .1 z shown. The electricity leaves the pendulum battery by the wire a, and returns to itby the wire f. There is only one break in this circuit, namely, at e, whicli is a slender springfaced with platinum, that is in contact with platinum on the pendulum at the extreme of itsVol. III.—31. 483 ELECTRIC CLOCKS. right vibration, but at no other time. The wire a reaches the pendulum from the batteryby the coils b, the plate C, and the frame d ; the wire r goes direct from the spring f, to thezinc z. From this arrangement, it happens that every time the contact at e is completed,the iron core, of which the ends n s are visible, contained within the coils b, becomes a
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Keywords: ., bookcentury1800, bookdecade1860, bookpublishernewyo, bookyear1864
