. Railway maintenance engineering, with notes on construction . ic: n Q Bi)H BSD Q 5jl IBB sal lOr- JI ©—1_—r-F©] IE g^gin^Jitfega. s© ;3 Fig. 184.—Facing Point Lock. (Ry. Sig. Assn.) as in the case of the point derail, which is an ordinary switchpoint; and second, where the track is unbroken, as with theWharton or Hayes derails described in Chapter VII. All of the derails shown in Fig. 182 are Wharton, or Hftingderails, except No. 32, which is a Hayes derail located on aside track. 334 RAILWAY MAINTENANCE \ In Fig. 182 the high signals with square-end blades are home signals, and in lower qua
. Railway maintenance engineering, with notes on construction . ic: n Q Bi)H BSD Q 5jl IBB sal lOr- JI ©—1_—r-F©] IE g^gin^Jitfega. s© ;3 Fig. 184.—Facing Point Lock. (Ry. Sig. Assn.) as in the case of the point derail, which is an ordinary switchpoint; and second, where the track is unbroken, as with theWharton or Hayes derails described in Chapter VII. All of the derails shown in Fig. 182 are Wharton, or Hftingderails, except No. 32, which is a Hayes derail located on aside track. 334 RAILWAY MAINTENANCE \ In Fig. 182 the high signals with square-end blades are home signals, and in lower quadrant signaling the end of the blade is jnotched for the distant signals. Signals Nos. 4, 17, 28 an 30are distant signals. Nos. 2581 and 2602 are also distant signals, but these are part of the automatic block system operating in - the upper quadrant and electrically connected with the home ; signals. The relation between distant and home signals is the isame in interlocking as that described in the operation of the block system, the function of the distant signal being to give i an advance indication of the posit
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1915
