. Report of the Electric Railway Test Commission to the president of the Louisiana Purchase Exposition . 160 ELECTRIC RAILWAY TEST COMMISSION Over the paper was mounted, at right angles to its directionof motion, six round brass rods, R, R, etc. To these wereclamped the time marking devices, M, M, etc. These magnetswere provided with armatures mounted upon hinged arms andcarrying recording pens made of glass tubing drawn out topoints. It was convenient for this purpose to use the relaysmanufactured by the Electric Tabulating Machine Company, &-0 zo^—4^ IS—4 le ■^ •15^ 3 --X.
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Keywords: ., bookauthorlouisian, bookcentury1900, bookdecade1900, bookyear1906