. The railroad and engineering journal . the double track tor thepassing of the trains, and the switches, B and E, must beso constructed that by no possible chance can two trainsmoving in opposite directions get onto the same track atthe passing point. 3. The third method is by use ot the stationary engineand cable, without taking into account the force of gravity In order to operate one of the inclines or roads to itsfull power, there should be a double track, so that trainsshould all run in the same direction on the same track. In the first two methods mentioned of operating inclinedplanes,
. The railroad and engineering journal . the double track tor thepassing of the trains, and the switches, B and E, must beso constructed that by no possible chance can two trainsmoving in opposite directions get onto the same track atthe passing point. 3. The third method is by use ot the stationary engineand cable, without taking into account the force of gravity In order to operate one of the inclines or roads to itsfull power, there should be a double track, so that trainsshould all run in the same direction on the same track. In the first two methods mentioned of operating inclinedplanes, the inclines must be nearly straight and of practi-cally uniform grade ; for this reason, the possibility ofusing them is very limited, and this requires special topo-graphical features or great expense. In the cable system,however, this necessity of straightness and uniformity isdone away with, and as many curves may be introduced asthe nature of the case demands. The best examples we have of roads (not properly Plate LV. EN6INE HOVSB. f/VS/NE HOUSE PROFILE - ■■- - - WM ■-■ 1 mn
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Keywords: ., bookcentury1800, bookdecade1880, bookidrailroadengi, bookyear1887
