. The science of railways . lit switches, using frogNos. 4 to 11 inclusive. Table No. 10, AppendixJ, gives a list of switch ties for thiee throw splitswitches using frogs, Nos. 6 to 11 inclusive. Stubswitches are used to some extent at present onbranches and in yards. The names of the jmrts ofa stub switch are given in Fig. 243 and in Appen-dix J, Table No. 11, is given the data to lay outa single and a three throw switch for a staudardgauge. Table No. 12, Appendix J, gives the datafor laying out a single and three throw switch fora narrow (three foot) gauge. A bill of switch tiesfor standard
. The science of railways . lit switches, using frogNos. 4 to 11 inclusive. Table No. 10, AppendixJ, gives a list of switch ties for thiee throw splitswitches using frogs, Nos. 6 to 11 inclusive. Stubswitches are used to some extent at present onbranches and in yards. The names of the jmrts ofa stub switch are given in Fig. 243 and in Appen-dix J, Table No. 11, is given the data to lay outa single and a three throw switch for a staudardgauge. Table No. 12, Appendix J, gives the datafor laying out a single and three throw switch fora narrow (three foot) gauge. A bill of switch tiesfor standard gauge single throw stub switches isgiven in Table No. 13, Appendix J, while TableNo. 14 gives a bill of switch ties for a narrow(three foot) gauge, single throw stub switch. Thetables and data so far given are for switches in astraight track. Where the main line is curved,special calculations are required for each case,and the solutions of such problems are given inthe work previously referred to. CONSTIiUCTING TIL 1CK. 307. Fig. 226. SINGLE THROW SPLIT SWITCH No. 8; RIGID FROG 8 FEET LONG. Switch ANGLE |°40 ^;r~5r:—£t2su»E 5,.,,,. ij 5 7pr ^U^4
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1900
