Incandescent electric lights . Fig. 13. ately or together, without causing anyspark of the point of rupture or any dan-ger of fire. The movement of the key a,as shown in Fig. 12, breaks the contact bymeans of a. conical stopper which termi-nates the screw of the key, and which,when separated from the two plates,through which the current passes whenthe stopper is in contact with them, :29 breaks the circuits at the points and ona surface of sufficient extent to greatlydiminish the spark at the point of Fig. 14 The lighting of the two salons of at the Exposition is done by 1
Incandescent electric lights . Fig. 13. ately or together, without causing anyspark of the point of rupture or any dan-ger of fire. The movement of the key a,as shown in Fig. 12, breaks the contact bymeans of a. conical stopper which termi-nates the screw of the key, and which,when separated from the two plates,through which the current passes whenthe stopper is in contact with them, :29 breaks the circuits at the points and ona surface of sufficient extent to greatlydiminish the spark at the point of Fig. 14 The lighting of the two salons of at the Exposition is done by 16small chandeliers like the above, twogrand crystal chandeliers and 80 brack-ets. 30 The effect is very beautiful, the steadi-ness being as complete as could be de-sired, and if, as I have been assured, theprice of this kind of illumination is lower,light for light, than gas, it may be con-sidered that the problem is on the eve ofsolution, for Edisons system of electriclighting is placed in the same condition,as that of gas. He avoids the presenceof machines in separate houses, whichalways are in the way, and which, by theirvery nature, require care and manage-ment not to be obtained from ordinaryservants. As a complement to his system, has constructed portable chande-liers, represented in Fig. 15, and a cur-rent regulator shown in Figures 16 and17, which permits of reducing the lightin any desired proportion. It is a car-bon rheostat, composed of carbon pen-cils of different sections, which, a
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Keywords: ., bookcentury1800, bookdecade1880, bookidincandescent, bookyear1882
