. The Street railway journal . FIG. 1.—RECORDING INSTRUMENT IN POSITION. FIG. -SHOWING ARRANGEMENT OF ROLLERS These tests were made on new rolling stock property of theBrooklyn Rapid Transit Company. They were four in num-ber, and consisted of a run with a single motor car equippedwith Westinghouse unit switch control, a run with the Brook-lyn Rapid Transit instruction motor car, a test on the ConeyIsland Express, and a test on a large four-motor interurbantrolley car. the Keiley recorder described inVol. I of Electric Railways,published jointly by the writerand Mr. Keiley. Unfortun-ately, wit
. The Street railway journal . FIG. 1.—RECORDING INSTRUMENT IN POSITION. FIG. -SHOWING ARRANGEMENT OF ROLLERS These tests were made on new rolling stock property of theBrooklyn Rapid Transit Company. They were four in num-ber, and consisted of a run with a single motor car equippedwith Westinghouse unit switch control, a run with the Brook-lyn Rapid Transit instruction motor car, a test on the ConeyIsland Express, and a test on a large four-motor interurbantrolley car. the Keiley recorder described inVol. I of Electric Railways,published jointly by the writerand Mr. Keiley. Unfortun-ately, with the Keiley recorderit was impossible to obtain asatisfactory speed-time curve,as it was first necessary to plota distance-time curve and thendraw tangents to this curve toobtain values convertible tospeed. In drawing such tan-gents results were obtainedwhose accuracy varied .any-where from 10 per cent to 40per cent. With the recorderbuilt by the writer, a continuousrecord was obtained direct ofinstantaneous speed of the instrument could be modi-fied so as to
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
