. Electric railway journal . VIEW SHOWING CASE-HARDENED PIN INSTALLED ONWORCESTER CAR driven into the pipe at the right-hand end. A Boyer-ized pin with a shank % in. in diameter and 1% in-long and with a head Vi in. thick and % in. in diameterreceives a driving fit into the door bracket casting, anda Boyerized bushing of %-in. inside diameter and % diameter and 13/16 in. long surrounds the pin,the pinand bushing forming a running fit. The bush-ing is carried in the steel eye at the end of the the wear is on the bushing and pin. Up to the pres-ent time the wear has been negli
. Electric railway journal . VIEW SHOWING CASE-HARDENED PIN INSTALLED ONWORCESTER CAR driven into the pipe at the right-hand end. A Boyer-ized pin with a shank % in. in diameter and 1% in-long and with a head Vi in. thick and % in. in diameterreceives a driving fit into the door bracket casting, anda Boyerized bushing of %-in. inside diameter and % diameter and 13/16 in. long surrounds the pin,the pinand bushing forming a running fit. The bush-ing is carried in the steel eye at the end of the the wear is on the bushing and pin. Up to the pres-ent time the wear has been negligible, compared with alife of less than three months in the case of the ordi-nary cold-rolled steel pin without a bushing. Thiscombination also is noiseless. A Ys-in. cotter keyholeis provided near the bottom of the pin to prevent turn-ing against a boss on the under side of the bracket cast-ing. Twenty-six cars on this road have now beenequipped in the above way, and it is planned to equipa total of ROOF OF TEMPORARY SUBSTATION SHOWING INCOMING FEEDERSAND HORN-GAP LIGHTNING ARRESTERS Army Camp Gets Emergency Service Louisville Railway Makes Temporary Substation toServe Camp Zachary Taylor A portable substation has been placed by the Louis-ville Railway near Camp Zachary Taylor, the federalarmy cantonment near Louisville, which the companyis serving. The camp is located 2 miles from the citylimits on an interurban line and the only new trackconstruction consisted in converting the 2 miles ofsingle-track work into double-track construction, andthe building of about 4000 ft. of new double track,most of it on government property. This new track-age lies about equidistant between one of the powerplants of the railway and a permanent substation, andit was found that a portable substation would be moreeconomical than permanent construction, particularlyin view of the uncertainty as to how long the campmight be in use. The company already had a three-phase, 13,200-volttra
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