. Building and repairing railways ... : Forming one of the series of the volumes comprised in the Revised and enlarged edition of The science of railways, . SECTION CD S€CTI0NAB Fig. 121. RIGID CHUCK FILLED FROG. frog and suitable for yards or a road with lighttraffic. Fig. 122 rej)resents a clamped frog, the. ver«0« imowti simr ciuip snuoM immsH imio etim Fig. 122, RIGID STEEL CLAMP FROG. clamps being made of steel. This is sometimescalled a yoked frog. Fig. 123 represents a frogriveted to a plate I to f inches thick, the rivetsbeing countersunk on the under side of the plateto give a flat be
. Building and repairing railways ... : Forming one of the series of the volumes comprised in the Revised and enlarged edition of The science of railways, . SECTION CD S€CTI0NAB Fig. 121. RIGID CHUCK FILLED FROG. frog and suitable for yards or a road with lighttraffic. Fig. 122 rej)resents a clamped frog, the. ver«0« imowti simr ciuip snuoM immsH imio etim Fig. 122, RIGID STEEL CLAMP FROG. clamps being made of steel. This is sometimescalled a yoked frog. Fig. 123 represents a frogriveted to a plate I to f inches thick, the rivetsbeing countersunk on the under side of the plateto give a flat bearing on the ties. In addition tothe styles of rigid frogs mentioned, some roadshave styles of their own, differing somewhat indetail, and the various makers also differ in thedetails of manufacture and style. Eigid frogs STANDARDS OF CONSTRUCTION. 255
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1906
