Incandescent electric lights . enables us tosee how much the intensity of the cur-rent must be diminished or increased tocorrespond to a given luminous intensi-ty. For this purpose the photometer ismounted on a little railroad, placed in adark chamber; under and in front of itis placed a scale, arbitrarily divided, soas to indicate immediately the candlepower furnished by the current in itsnormal condition. The left side of Fig. 8indicates the manner of arrangement ofthe testing bench, with the explanatorytable at the bottom of the figure. Fig. 9shows it in perspective. The manner inwhich deri
Incandescent electric lights . enables us tosee how much the intensity of the cur-rent must be diminished or increased tocorrespond to a given luminous intensi-ty. For this purpose the photometer ismounted on a little railroad, placed in adark chamber; under and in front of itis placed a scale, arbitrarily divided, soas to indicate immediately the candlepower furnished by the current in itsnormal condition. The left side of Fig. 8indicates the manner of arrangement ofthe testing bench, with the explanatorytable at the bottom of the figure. Fig. 9shows it in perspective. The manner inwhich derivations are taken on the princi-pal conductors merits especial conductors are composed of two rodsof copper of hemi-cylindrical form, flat onone side and round on the other, whichare enveloped in cylinders of insulatingmaterial, contained in small wrought-ironpipes, which are buried under the take a derivation the cable is laidbare at the spot where the branch cir-cuit is to be established. The two oil 24 ducting rods (coming from the main coiductors) are cut and bent outwards ar iintroduced into a clamp where they ai
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Keywords: ., bookcentury1800, bookdecade1880, bookidincandescent, bookyear1882
