The car may be made reversible by fitting with a small current reverser, but unless the reverser is carefully made the danger of loss of power through poor contacts is quite considerable. If the car is fitted with a reverser the handle should be arranged to project from the car in a convenient place where it can be easily reached by the fingers and the car sent back or forth at will.
A railway system such as this can be elaborated and extended by adding more than one car to the line or such features as bridges and stations.
Fig. 278.—A Bumper for preventing the Car from leaving the Rails.
The ends of a blind section of track, that is, a straight piece of track not part of a circle or curve so that the car can return, should be fitted with a track bumper, to prevent the car leaving the rails.
Fig. 279.—A Design for a Railway Bridge.
No dimensions are given in Figures 279 and 280, showing designs for a bridge and a station, because they are best left to be determined by the scale upon which the railway system is to be extended.
Fig. 280.—A Design for a Railway Station.