. Electric railway journal . Hamburg Power—Subterranean Substation Built Alongside and Over the Railway The third-rail is of the under-contact type similar to theSprague-Wilgus design. It is carried from porcelain insu-lators at intervals of about 16 ft. and is protected withwooden boards. A leather washer is installed between theporcelain insulator and the rail to minimize contactor rail in the tunnel sections is about 2 than in the open sections, so that light is auto-matically cut in by the downward movement of the collectorshoes. The rail consists of cast iron with
. Electric railway journal . Hamburg Power—Subterranean Substation Built Alongside and Over the Railway The third-rail is of the under-contact type similar to theSprague-Wilgus design. It is carried from porcelain insu-lators at intervals of about 16 ft. and is protected withwooden boards. A leather washer is installed between theporcelain insulator and the rail to minimize contactor rail in the tunnel sections is about 2 than in the open sections, so that light is auto-matically cut in by the downward movement of the collectorshoes. The rail consists of cast iron with per centmanganese and per cent carbon with a cross-section of280 sq. in. Hamburg Power—Boiler Room at Barmbeck LOW-TENSION TRANSMISSION AND CURRENT COLLECTION The locations for the low-tension cable runs fromthe substations to the third-rail were planned with greatcare. On viaducts and bridges particularly ample space MOTOR INSPECTION AT MEMPHIS, TENN. The Memphis Street Railway Company, Memphis, Tenn.,has m
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