. Electric railway journal . t-circuits in aluminum coils is indicatedin service by decreased tractive effort, fuse blow-outs andpoorer operation of the short-circuiting brakes. Most com-panies try out their coils through current, voltage and resistancemeasurements. The Hamburg company has devised a simpleapparatus to test the comparative magnetic strength of panied by a gale from the northwest which reached a maximumof 58 at midnight on Dec 25 and remained at about on Dec. 26. One of the worst sufferers from the stormwas the Brooklyn Rapid Transit Company, which has a con-side
. Electric railway journal . t-circuits in aluminum coils is indicatedin service by decreased tractive effort, fuse blow-outs andpoorer operation of the short-circuiting brakes. Most com-panies try out their coils through current, voltage and resistancemeasurements. The Hamburg company has devised a simpleapparatus to test the comparative magnetic strength of panied by a gale from the northwest which reached a maximumof 58 at midnight on Dec 25 and remained at about on Dec. 26. One of the worst sufferers from the stormwas the Brooklyn Rapid Transit Company, which has a con-siderable part of its mileage in the thinly settled territory be-tween Brooklyn and the beaches. The unexpectedness of thestorm and the fact that it occurred on Christmas day whenmany men were on holiday leave made it exceptionally difficultto keep the lines open even in the settled portions of the soon as the storm gave the first indications of severity, thetransportation department sent out hurry calls for the plow and. Following in the Wake of the Locomotive Plow new and defective coils. The principal element is an iron corewhich is excited by the coil under test. The magnetized coreattracts an armature attached to a spring scale. Thus thepointer on the scale will show the effect of connecting into therailway circuit a coil carrying a load of, say, 40 amp. It hasbeen found unnecessary to test the field coils under mechanical Electric Freight Locomotive Fitted for Snow Fighting sweeper crews and the mechanical department bent every effortto get hold of the men assigned to care for the snow-fightingmachinery. There were available from a total of 17 surface dis-tributing depots 40 sweepers and 26 plows. The latter apparatusincluded two rotary plows and four pneumatic plows. The actual snow-fighting operations were -directed by themanagement, including the superintendents of the elevated and January 8, 1910.] ELECTRIC RAILWAY JOURNAL surface lines while the superintendent of
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