. The working and management of an English railway . e (as at a^ Fig. 7,Nos. I and 3), the crossing is known as a single or V crossing, but where the angle of intersection isobtuse (as at B, No. 3), it is called a diamond crossings occur only in pairs. For V crossings, check rails are provided {vi and //,No. I, Fig. 7), which, by holding one wheel on anaxle to its proper course, prevents the wheel at the otherend of the axle from taking the wrong side of the pointof the crossing between in and ;/. The check rail nguides the flange when a wheel is travelling from F toG, and the
. The working and management of an English railway . e (as at a^ Fig. 7,Nos. I and 3), the crossing is known as a single or V crossing, but where the angle of intersection isobtuse (as at B, No. 3), it is called a diamond crossings occur only in pairs. For V crossings, check rails are provided {vi and //,No. I, Fig. 7), which, by holding one wheel on anaxle to its proper course, prevents the wheel at the otherend of the axle from taking the wrong side of the pointof the crossing between in and ;/. The check rail nguides the flange when a wheel is travelling from F toG, and the check rail in guides it in the direction Hto K. From an inspection of these diagrams (Fig. 7) itwill be easy to trace the course of the wheel flange,which is always on the inner side of the wheel. To turn a train off one line of railway and on toanother which connects with it, a pair of tapered move-able rails, called switches, or points, are made useof (see Fig. 7, No. 4). These are connected byrods with a lever in the signal cabin, and worked by. PERMANENT WAY. 53 the signalman ; the lever being so controlled mechani-cally that it is impossible for the signalman to lower thesignals for a train travelling in the direction of the arrowon line B, until the points or switches have beenplaced in their proper position, as at D. On the otherhand, before the signal can be lowered for the line cthe switches must be placed as at E, Fig. 9 gives a view in perspective of a pair ofswitches, and shows the manner in which they areworked. Fig. 8 is a view of an ordinary junction betweena main line and a double branch line, with the signalcabin from which the points and signals are worked, andthe home signals for the junction. The diamond cross-ings are marked B, and the nearest single crossingis marked A. This is a simple double junction ; butwhere the running lines are duplicated, and there arenumerous cross-over-roads and sidings connecting withthe main lines, the arrangement of roads fre
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectlondonandnorthwester
