. Electric railway journal . point it has been foundthat the number of cars passing the corner and operat-ing the switch, either for main line or for branch lineruns, reaches a rate of approximately 150 cars per hourduring the maximum fifteen-minute period of the its four months of service no important diffi-culties have been experienced with its operation. A fewminor defects with the mechanism were found, but noneof these is serious, and the company thinks so wellof the proposition that it expects shortly to installeleven track switches of this type to replace eleven oldautomatic s
. Electric railway journal . point it has been foundthat the number of cars passing the corner and operat-ing the switch, either for main line or for branch lineruns, reaches a rate of approximately 150 cars per hourduring the maximum fifteen-minute period of the its four months of service no important diffi-culties have been experienced with its operation. A fewminor defects with the mechanism were found, but noneof these is serious, and the company thinks so wellof the proposition that it expects shortly to installeleven track switches of this type to replace eleven oldautomatic switches now in operation on the companyscity lines. At the point where the switch is located a switchmanwas always employed prior to the introduction of auto-matic operation because of the extraordinarily heavytraffic, which is, in fact, the maximum experienced any-where on the whole system during the rush hours. Theinstallation of the device has eliminated the switchmanat this location, reducing the operating costs approxi-. mately $ per day, while the service that is givenis just as satisfactory as under conditions of manualoperation. The principal features of the switch that differ fromthose of the old type generally in operation throughoutthe country are, first, that it is driven by a motor, thuspermitting the introduction of a train of gears to retardthe motion of the switch point when it moves from oneside of the bed to the other. This causes the switch tooperate without splashing. In addition to this theswitch point is firmly held in the position to which it isthrown by means of a spring that is connected with atrain of gears, and in consequence, the switch pointcannot fly back between the trucks of a car and thusmake it split the switch. The third important featureis a control that is effected by both a cut-in contact anda cut-out contact so arranged that a following car whichis extremely close to the car operating the switch is pre-vented from throwing the switch p
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