A dictionary of electrical words, terms and phrases (1898)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W. J. Johnston company · leaf 426
ther comparatively light articles at a high speed. In an experimental plant at Dorchester, Mass.,a track of 2,784 feet in length was laid in the ap-proximate form of an oval. The track wasformed by an upper and lower rail of steel, suit-ably supported by stringers. The car, which forms the movable… … Fig. 4*5. Portelectric Track. 12 feet in length and 10 inches in diameter, andweighed about 500 pounds. It would carry about10,000 letters. It had two flanged wheels aboveand two below. The solenoidal coils, by the attractive power ofwhich the core was moved, embraced the trackand the movable core…
Electricity · Electrical engineering
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