. The street railway review . ines, it requires two panels to each of there are twelve of these, a simple arithmetical equa-tion of 2 A 12 = 24, accounts for all but two panels andthese control, each, one 4,000 light machine. Two field rheostats, field switches, dynamos, changingswitch, ammemeter, pilot lamp and voltmeter, composeeach panel. The feeder system attached to the switch board iscomplete in every detail and will be examined with in-terest by every visiting electrician. The Westinghouse board is 71 feet long by 9 feet 2%inches high, while the lower board measures 38 by 11feet
. The street railway review . ines, it requires two panels to each of there are twelve of these, a simple arithmetical equa-tion of 2 A 12 = 24, accounts for all but two panels andthese control, each, one 4,000 light machine. Two field rheostats, field switches, dynamos, changingswitch, ammemeter, pilot lamp and voltmeter, composeeach panel. The feeder system attached to the switch board iscomplete in every detail and will be examined with in-terest by every visiting electrician. The Westinghouse board is 71 feet long by 9 feet 2%inches high, while the lower board measures 38 by 11feet I ^4 inches. Our engraving represents the board as well as photo-graphs can paint the resplendent marble and glitteringbrass. The Westinghouse board was constructed by aspecial commission from the Pittsburg factory. SOUTH AMERICAN OX CART. S OUTH AMERICA contributes to the curiositiesof transportation bv sending in the remarkablylight and graceful chariot represented in the en-graving herewith presented. The heavy wheels and. SOUTH AMERICAN OX CART—TRANSPORTATION. rustic body of the vehicle are set in strong contrast bybeing placed in the entresol, next to the latest and lightestbicycles. This vehicle attracts considerable attention. THE TROLLEY PATENT AGAIN. THE patents recently granted to Chas. J. VanDepoele, (deceased), and assigned to the Thom-son-Houston Electric Company, are claimed tobe fundamental ones on the trolley. The patents aresaid to cover the underneath contact made by a rollingwheel or a sliding spoon, the overhead contact by wheelor spoon and the reversibility of the trolley pole, allowingthe contact to be made on either side of the trolley patents on the trolley seem to be numerousbut the name of the distinguished inventor, Van Depoele,would probably add value to this patent. ^[ud^V^aAi^^S^w^ 281 WESTINGHOUSE REPRESENTED. THE Pittsburg people are in no wise careless of theirrepresentation at the worlds jubilee of arts andsciences, and have
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
