. The Street railway journal . EET RAILWAY JOURNAL. 195 A New Trolley. The accompanying engraving shows a new type oftrolley pole put upon the market by the Duplex TrolleyCompany, of New York, of which C. E. Chinnock is pres-ident. The base of the pole, as shown, is supported on avertical strip of steel which will always keep the flangesof the trolley wheel parallel to the overhead wire, so thatthere is no tendency to ride over the wire. This givesthe pole great lateral range of movement, enabling it tofollow closely the variations of the trolley wire, and atthe same time insures passing over
. The Street railway journal . EET RAILWAY JOURNAL. 195 A New Trolley. The accompanying engraving shows a new type oftrolley pole put upon the market by the Duplex TrolleyCompany, of New York, of which C. E. Chinnock is pres-ident. The base of the pole, as shown, is supported on avertical strip of steel which will always keep the flangesof the trolley wheel parallel to the overhead wire, so thatthere is no tendency to ride over the wire. This givesthe pole great lateral range of movement, enabling it tofollow closely the variations of the trolley wire, and atthe same time insures passing over frogs without dangerof jumping the wire. The pole is jointed just below the fork, and completevertical flexibility is permitted by the four coil springsshown, which have the usual methods for regulating ten-sion, and the upper part is held in position by flat springs,permitting a slight vertical movement which gives aspring touch on the wire. The wheel itself is composedof four parts; the two flanges, the hub and the tire, the. These cables are anchored strongly in the ground at thelower end, and to the rock at the top. The car is pro-pelled by an endless, one-half inch cable operated by twotwenty horse power engines. The line at its highestpoint is 350 ft. above the water. The up trip is made bypower, and takes three and one-half minutes. Thedescent is made in one-half minute by gravity. The caris equipped with automatic brakes which will hold it atany point on the line. On the afternoon of February 18, while making theup trip,. with six persons in the car, the hauling cablebroke when the car was within a few feet of the top. Thebrakes stopped the car within forty feet of the bluff, butthe small cable commenced to overhaul with great rapid-ity, until the broken end struck the car, and wrappinground it, caused it to tilt to an angle of 45 andmade it impossible to move the car either way on thecables. The passengers were taken out, after consider-able difficulty, by means
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Keywords: ., bookcentury1800, bookdecade1880, bookidstreetrailwa, bookyear1884
