. The Street railway journal . Speea Cenfr//. Fnchor? /fesisfance/fgiaf tV/leflSaje /file/ sj 31 s;rd>7 P 5/3-A ^3 A B c D r e » P P ^tfinrrr ^o -/S90 3600 5/50 4-eeo 4380 34W 3920 4160 40S0 47fO seo 3S60 64/0 £4/0 so /3iO J-^SO 49ae 4300 4eoo 3560 4£S0 4360 3930 74-00 304O 47i0 66O0 2570 60 •taao 3300 woo 39S0 3900 3740 4S60 4650 3640 70470 SSiO 44S0 6830 2780 70 90S0 3/JO 4^610 37i0 3sao 3940 4S30 SOOO 33SO 74730 9730 7460 2460 7/00 3020 eo /37S0 i9O0 ^400 3430 3200 4150 5/00 5360 £370 /S360 73000 77000 SS40 7400 3300. »-e/g/?/ 0/0J7P ^r/i^/n^ Ax/e- //600/tI^. /\^.f^H, We/gTifs on ^/tj/cr
. The Street railway journal . Speea Cenfr//. Fnchor? /fesisfance/fgiaf tV/leflSaje /file/ sj 31 s;rd>7 P 5/3-A ^3 A B c D r e » P P ^tfinrrr ^o -/S90 3600 5/50 4-eeo 4380 34W 3920 4160 40S0 47fO seo 3S60 64/0 £4/0 so /3iO J-^SO 49ae 4300 4eoo 3560 4£S0 4360 3930 74-00 304O 47i0 66O0 2570 60 •taao 3300 woo 39S0 3900 3740 4S60 4650 3640 70470 SSiO 44S0 6830 2780 70 90S0 3/JO 4^610 37i0 3sao 3940 4S30 SOOO 33SO 74730 9730 7460 2460 7/00 3020 eo /37S0 i9O0 ^400 3430 3200 4150 5/00 5360 £370 /S360 73000 77000 SS40 7400 3300. »-e/g/?/ 0/0J7P ^r/i^/n^ Ax/e- //600/tI^. /\^.f^H, We/gTifs on ^/tj/cr yv7)ee7 Bsse /f c 0 G /■f ^0 SE/SO 2 7oes z7oes SS76S es/6S SO ZOS4C esses ssaes Sbees eeaas eo ias90 e3£4S /9S4S asoos 3 2 705 70 /esso s/oss 74SSS 3//9S 3769S eo /3e4o /7a^^S 7a*s 3430S 4SOOS IIG. 2. Summarizing, then, it will beseen from the attached tables thatfor a speed of say 60 m. p. h. ona 3-deg. curve with a super-eleva-tion of 4j4 ins., the maximumshear on the outer spikes of theoutside rail under the most un-favorable conditions is for theelectric locomotive 5820 lbs., ascompared with 4890 lbs. for thesteam locomotive. The ultimateshearing resistance of the stan-dard spikes used on the curvein question ranges from 14,440 lbs. to 17,060 lbs. As-suming a factor of safety of 4, the permissible shear perspike is 3810 lbs. up to 4265 lbs. The loo-lb rail in use on the curve acts as a continuousgirder distributing the stresses over several spikes, but to
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
