. The Street railway journal . highest average value. I ought to add that Dr. Eichberg considers his motor to beeasily adaptable to direct-current lines. He expected, at thetime of my second visit to Berlin, to complete arrangements,soon, for a working demonstration in which the same motorswere to run partly with a. c. and partly with d. c. current, ondifferent parts of the line. A French electrical engineer, Marius Latour, has also de-vised and patented a single-phase motor, having both exciterand short-circuit brushes, approaching very closely the typejust described. The French Thomson-Houst
. The Street railway journal . highest average value. I ought to add that Dr. Eichberg considers his motor to beeasily adaptable to direct-current lines. He expected, at thetime of my second visit to Berlin, to complete arrangements,soon, for a working demonstration in which the same motorswere to run partly with a. c. and partly with d. c. current, ondifferent parts of the line. A French electrical engineer, Marius Latour, has also de-vised and patented a single-phase motor, having both exciterand short-circuit brushes, approaching very closely the typejust described. The French Thomson-Houston Company hasbuilt and installed several of the Latour motors for stationarypurposes. Edgar W. Mix, chief engineer of this company,showed me three of these motors which form the equipmentof a traveling bridge and crane, located on the Seine, and serv-ing to unload and handle large blocks of stone building ma-terials, etc., brought into Paris by water. These motors weresubmitted, in my presence, by Mr. Mix, to the most severe. STUBAITHAL CAR, SHOWING PROTECTIVE SCREEN ON ROOF tests, such as throwing the regulator entirely around to theother side so as completely to reverse the polarity at full poten-tial when running at full speed and under full load. The per-formance of these motors was such as to command the warmestadmiration. They quickly came to a standstill, reversed, andas quickly attained speed in the other direction; the perform-ance being repeated dozens of times, without the appearanceand even, one might say, the suggestion of a spark at the com-mutator, whose appearance, when seen by me, would compare November 26, 1904.] STREET RAILWAY JOURNAL. 95i favorably with that of any direct-current commutator whichhas been in service an equal length of time. The largest ofthese motors seen by me was of 25-hp nominal rating. It wasexpected that some railway motors of the same type would bebuilt in the near future. But now, looking further than merely the electrification ofurba
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
