. Electric railway journal . between Forty-fifth and Fifty-ninth Streets, also in old rail section 340. Here some 50 to 100welds were made on 5 ft. dutchmen to replace severe breakageof cast-welded joints. From this extreme^ busy section only twobreaks are reported. The fourth order, placed in 1916, covered 400 to 500 ThermitWeldson Third Avenue between Thirty-fourth and Fifty-sixth Streets inrail section 429. On this job, made by Third Avenue men under aThermit supervisor, only two breaks are reported to date. The fifth order of Thermit • Welds comprised 355 Welds madein 1917 and divided in t
. Electric railway journal . between Forty-fifth and Fifty-ninth Streets, also in old rail section 340. Here some 50 to 100welds were made on 5 ft. dutchmen to replace severe breakageof cast-welded joints. From this extreme^ busy section only twobreaks are reported. The fourth order, placed in 1916, covered 400 to 500 ThermitWeldson Third Avenue between Thirty-fourth and Fifty-sixth Streets inrail section 429. On this job, made by Third Avenue men under aThermit supervisor, only two breaks are reported to date. The fifth order of Thermit • Welds comprised 355 Welds madein 1917 and divided in two installations, both of which were madeby the railways own men. One was in new high-carbon rail section 493 on Broadway betweenSeventy-second and Ninety-sixth Streets; the other was in section494 on the Union Railways Southern Boulevard line between 149thand Baretto Streets. Exclusive of failures due to poor workman-ship, so few breakages have been reported that the Third AvenueRailway System intends to of Thermit Welds. electric railway journal January 5, 1918 74 This Record of On the Third Avenue Railway SystemThermit Welds Made Good The first Thermit Welds were made by our own men during 1914on the busy Third Avenue Line between Fifty-sixth and Fifty-ninth Streets to the number of fifty in new 7-in. rail section of these welds were made with inserts and half without in-serts in accordance with the design of E. M. T. Ryder, Engineerof Maintenance of Way, Third Avenue Railway System. Neitherclass of Thermit Weld has developed any breaks to date. A Thermit Weld Modification for ConduitTrack Makes Good The Ryder modification was developed to meet a condition peculiar to slot-railconduit construction. New rails come drilled every ft. for tie-rods which passthrough the slot-rails so that the running rails cannot be conveniently moved toprovide a j4-in. gap for an insert weld. Therefore, a butt weld is made as follows:The rails are left in contact end to end, but t
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