Arc Lamps for Railways.

Progress, Volume II, Issue 8, 1 June 1907, Page 284

Arc Lamps for Railways.

Since the Maxim arc lamp installation of the Metropolitan District Railway, it is interesting to note that all the electric tube railways have adopted the Maxim arc lamp for station lighting, and that the 1,, and S. W. Railway

and other railways have also adopted this same type of semi-enclosed arc lamp. The lamps are usually run four or five in series upon power circuits : and each lamp is self-contained and interchangeable. The Maxim Company have introduced a substitutional resistance and cutout, which are perfectly satisfactory in working, and sufficient to absorb the extra voltage, should one or more of the lamps in a circuit fail from any cause. The illustration herewith is of the type of lamp used on London's latest " Tube," the Great Northern, Piccadilly, and Brompton Railway, the style of case of which is quite new, and as will be seen is certainly very pleasing. The case is of steel, coated inside and out with a hard vitreous enamel ; the lamp is extremely durable, and is ventilated, but weather-proof.