. Electric railway journal . sabout $2 per ton more than untreated carbon rail. Thedrop test is about the same as in testing carbon rail, un-treated, a 2000-lb. tup falling 12 ft. on a rail suspended3 ft. between supports being used. The rails arrivedlate in October and hence cannot be extensively used inheavy work this season, but installations are being madein Fall River and Methuen, Mass. 180 ELECTRIC RAILWAY JOURNAL [Vol. XLVII, No. 4 Most Recent Heater Installation onNew York Subway Cars The Interborough Rapid Transit Company has re-cently placed an order with the Consolidated Car-Heat-in
. Electric railway journal . sabout $2 per ton more than untreated carbon rail. Thedrop test is about the same as in testing carbon rail, un-treated, a 2000-lb. tup falling 12 ft. on a rail suspended3 ft. between supports being used. The rails arrivedlate in October and hence cannot be extensively used inheavy work this season, but installations are being madein Fall River and Methuen, Mass. 180 ELECTRIC RAILWAY JOURNAL [Vol. XLVII, No. 4 Most Recent Heater Installation onNew York Subway Cars The Interborough Rapid Transit Company has re-cently placed an order with the Consolidated Car-Heat-ing Company for electric heaters for 311 cars of thenew type. This heater is illustrated herewith. Atten-tion is directed to the glazed porcelain support of theventilated type, which is designed to furnish ventila-tion without weakening the porcelain, either mechani-cally or in its insulating properties. It also ventilatesthe coil uniformly. The coil is supported on two ridgesfor its entire length and does not rest down in the. RECENT CAR HEATER FOR INTERBOROUGH RAPID TRANSITCOMPANY groove in the porcelain as in heaters of the older are also no holes to collect dirt and moisture andeventually short-circuit the coils. The highly-glazedfine-quality porcelain permits of the heater to stay cleanlonger than does unglazed porcelain. The double-backconstruction, a feature of Consolidated heaters, is wellshown at the top in the illustration, as is also the junc-tion space at the ends of the heater. The end cap isof metal to prevent warping and is lined with fiber toprevent grounds and short-circuits. The heater is ex-tremely light, the metal parts being made entirely ofpressed steel. The coils are of Consolidated Nokorowire, which is a non-corrosive alloy of uniform re-sistance. The heater is a logical development of the oldConsolidated features, which have so successfully stoodthe test of traction operation for many years. High-Voltage Air Compressor For the locomotives of t
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