. The street railway review . FIG. 3. to permit operations from the cah of cillur locomotive by oneman only. The motor generator consists of a monophase induction motormounted upon the same shaft with a continuous current motors for driving the car are of the four-pole type, drivingthe axles through gearing. For speeds above 60 kilometers perhour a design dispensing with gearing has been brought out. The current supply is through a single wire or several wires, notinsulated, except from the ground. It is, therefore, easy to employpotentials as great as 15,000 volts without having
. The street railway review . FIG. 3. to permit operations from the cah of cillur locomotive by oneman only. The motor generator consists of a monophase induction motormounted upon the same shaft with a continuous current motors for driving the car are of the four-pole type, drivingthe axles through gearing. For speeds above 60 kilometers perhour a design dispensing with gearing has been brought out. The current supply is through a single wire or several wires, notinsulated, except from the ground. It is, therefore, easy to employpotentials as great as 15,000 volts without having to consider theproblem of insulating nearby circuits, as is the case with three-phase work. This permits of cheap construction and diminisheslosses. The contact portion trolley, which is the design of Herr llerzog,consists of a convex rod, the convexity being towards the con-. FKJ. 4-TROLLEy OUT OF SERVICE. rluctor. This rod is pivoted so that it is free to turn in a planenormal to the direction of the car, the supporting axles beingmounted in the insulated hearings. The position of this point, aboutwhich this contact rod turns, may be varied laterally or verticallyby mean!) of the mechanism shown, which mechanism may be oper-ated by hand or mechanically. The illustrations show several viewsof thi» trolley, from which the construction and principle of opera- tion are readily apparent. Fig. 2 shows the position of the trolleyin contact with the upper surface of the conductor, such as wouldbe the ordinary construction of the line. Fig. J illustrates theposition taking current from the under side of the trolley wire. shows the trolley out of service. .• examination of the design shows that it is practically impossi-ble for this device to leave the wire, as after any derangement itagain automatically adjusts itself. It is adapted to any form of linec
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
