Incandescent electric lights . heprice 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, whi
Incandescent electric lights . heprice 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, as thecurrent passes through one or the other,allows any desired intensity. The appa-ratus is enveloped in a cylindrical cover,pierced with holes to allow of the escape 31 of heat, and surmounted by a lampwhich indicates to the eye the desired de-gree of luminacy. It is worked by a *£*. Fig. 15.
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Keywords: ., bookcentury1800, bookdecade1880, bookidincandescent, bookyear1882
