. Electric railway journal . IlOUBLE GUARD FORRAILS — FIG. 1 — FROGUNPROTECTED BY AP-PROACH GUARD. DOUBLE GUARD FOR RAILS FIG. 4 WEAR FROM SINGLE-GUARDED CURVES A single guard is of little value when opposite anunprotected frog in the outer rail, as it will not preventa wheel from riding the point of the frog or causing aderailment. This condition is clearly shown in the ac-companying illustrations, Figs. 1 and 2, which indicatehow the flanges may be intercepted by the point of thefrog when no approach guard has been provided. InFig. 3 is shown a frog protected by a small V-shapedguard that is
. Electric railway journal . IlOUBLE GUARD FORRAILS — FIG. 1 — FROGUNPROTECTED BY AP-PROACH GUARD. DOUBLE GUARD FOR RAILS FIG. 4 WEAR FROM SINGLE-GUARDED CURVES A single guard is of little value when opposite anunprotected frog in the outer rail, as it will not preventa wheel from riding the point of the frog or causing aderailment. This condition is clearly shown in the ac-companying illustrations, Figs. 1 and 2, which indicatehow the flanges may be intercepted by the point of thefrog when no approach guard has been provided. InFig. 3 is shown a frog protected by a small V-shapedguard that is placed at the entrance to the frog andeither bolted or cast to it. The cost of installing thisdevice and double-guarding the curves on an entiresystem would frequently be less than the damage result-ing from one derailment. Results of the Strain from No Outer Guard The strain on trucks due to improper guarding andgaging of rails on curves cannot be computed, but thedisastrous results may be observed at the are found wheel flanges worn to many sizes andshapes, trucks out of alig
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
