. Journal of electricity, power, and gas . Fig. New Chicago House of Benjamin Electric Mfj,^. Co. the danger of breaking the insulator is thus lessened. Thebinding plates are well protected, and are readily accessible. The socket is provided with a spring center contact serv-ing as short-circuiting device when the lamp is removed oraccidentally loosened. It thus prevents the film from beingpunctured except when the lamp filament is broken. A heavyporcelain ring carrying the threaded socket shell and film cut-out is connected with the main socket by means of a bayonetsnap lock, and can only
. Journal of electricity, power, and gas . Fig. New Chicago House of Benjamin Electric Mfj,^. Co. the danger of breaking the insulator is thus lessened. Thebinding plates are well protected, and are readily accessible. The socket is provided with a spring center contact serv-ing as short-circuiting device when the lamp is removed oraccidentally loosened. It thus prevents the film from beingpunctured except when the lamp filament is broken. A heavyporcelain ring carrying the threaded socket shell and film cut-out is connected with the main socket by means of a bayonetsnap lock, and can only be removed by pulling the porcelaindownward and turning it to the left. The strain of placing orremoving the lamp cannot unlock connections. No. 12 B. W. G. iron wire. The magnets of the gen-erator are of the highest grade magnet steel and are har-dened and aged to insure retaining their strength bearings are large and well proportioned and the crankfurnished is of a design which enables the generator to berung easily when fully
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Keywords: ., bookcentury1800, bookdecade1890, bookidjo, booksubjectelectricity
