. The street railway review . ted structureinto stores without having to go down stairs and walkalong the crowded pavements. At the ends of the structure there will be suitableelevators or hoisting apparatus bj means of which trainsmay be raised and lowered from one track to the the foregoing description it will be seen this is astructure that is strong, compact and comparatively cheap,and one that possesses novel features not attainable withthe constructions now in use. This system was patentedMarch 17, 1891, b)- , of 19S South Water street,Chicago. The New Edison Motor. TH
. The street railway review . ted structureinto stores without having to go down stairs and walkalong the crowded pavements. At the ends of the structure there will be suitableelevators or hoisting apparatus bj means of which trainsmay be raised and lowered from one track to the the foregoing description it will be seen this is astructure that is strong, compact and comparatively cheap,and one that possesses novel features not attainable withthe constructions now in use. This system was patentedMarch 17, 1891, b)- , of 19S South Water street,Chicago. The New Edison Motor. THE Edison General Electric Company, are bringingout a new style street car motor which conveys itspower to the car axle by means of a single reduc-tion gear. The machine is tightly incased in a waterproof jacket and complete weighs but 2,200 pounds. Themotor while rated at 25 h. p., will develop fully 30 h. double truck cars, it is intended to use two motors,one on each truck, but one motor will be ample forsmaller The company also intend building a 15 h. p. motor ofthe same style for light street railway work. To securea car speed of twelve miles per hour, the armature makes460 revolutions per minute. The armature has a diam-eter of 18 inches and is 13 inches long, carried on a3 inch shaft, which has a pinion mounted at either mesh with the large gears mounted on the car axle. The use of a rheostat is avoided by the system of arma-ture winding, the armature being wound in 140 sections,using one continuous wire and each section having a tapwire of german silver leading to the commutator. Thisvery largely reduces the current induced by the shortcircuit caused when the brush passes from one commu-tator segment to another, and prevents the usual accom-panying sparking. Thii Electric Engineer says: The machine is of thefour-pole type and practically iron-clad. Only two poles,those in the horizontal plane, are wound, the two in thevertical plane being magnetize
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
