. The Street railway journal . ough the conductor is smoother, and the contact overmuddy portions of it is more nearly positive. At intervalsof about three weeks the conductor is treated with kero-sene, and brushing shoes are run through it, about one ortwo trips with these brushing shoes being all that is neces-sary. This serves to prevent the further accumulation ofrust and to remove the sediment from the contact inspection shows a smooth surface over which the shoesrun. Contact with the metal is seen to be in high spotsand thin lines which are slowly increasing in extent. 164 ST
. The Street railway journal . ough the conductor is smoother, and the contact overmuddy portions of it is more nearly positive. At intervalsof about three weeks the conductor is treated with kero-sene, and brushing shoes are run through it, about one ortwo trips with these brushing shoes being all that is neces-sary. This serves to prevent the further accumulation ofrust and to remove the sediment from the contact inspection shows a smooth surface over which the shoesrun. Contact with the metal is seen to be in high spotsand thin lines which are slowly increasing in extent. 164 STREET RAILWAY JOURNAL. [Vol. XII. No. 3. No considerable sparking now occurs, excej^t at thewet places, where it is occasioned by the presence of waterand sediment. With the exception of three places, about200 ft. long, each, the conductor is at present dry. The bolts to the arch of the tunnel are both galvan-ized and painted. They show no signs of rusting. The The Keasons Why Electric Motors Will be Usedon the Brooklyn FIG. 1.—VIEW OF BROOKLYN BRIDGE FROM THE NEW YORK PIER painting has, in general, protected the surfaces of the con-ductor and channels. The sides and top of the inside ofthe conductor are coated with rust. Most of this is hardand grained, some of it, however, flaky. In no there apparent a reduction of thickness of any of theironwork, due to rusting. Outside tlie tunnels the con-ductor is in uniformly good condi-tion. It adapts to changes oftemperature without trouble. Theinside of the conductor is coated withrust, but in no case has there been anytrouble from it. The depo,sit appearsto be very light. There was at notime any sparking between contactshoes and conductor outside of thetunnel. Drv Oak. One of the remarkable and interesting applica-tions of electricity that has yet been made in the transport-ation field is the adoption of electric motors for switchingpurposes on the Brooklyn Bridge, in place of thelocomotives hit
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
