. Electric railway journal . Leyden-Katwyk-Noordwyk Railway—Center Pole Construction on Right-of-Way, Section Break and Line Interrup-tion at a Drawbridge but hand and short-circuiting brakes are available for emer-gencies. Current collection is by means of a single panto-graph, which is controlled directly by the motorman. Each car is equipped with two 90-hp commutating-pole form of street car controller, although they are wound forfield control whether connected in series or parallel. How-ever, the shunt resistors for the weakening of the fields arebrought into circuit by means of contactors
. Electric railway journal . Leyden-Katwyk-Noordwyk Railway—Center Pole Construction on Right-of-Way, Section Break and Line Interrup-tion at a Drawbridge but hand and short-circuiting brakes are available for emer-gencies. Current collection is by means of a single panto-graph, which is controlled directly by the motorman. Each car is equipped with two 90-hp commutating-pole form of street car controller, although they are wound forfield control whether connected in series or parallel. How-ever, the shunt resistors for the weakening of the fields arebrought into circuit by means of contactors. As indicated in 144 ELECTRIC RAILWAY JOURNAL [Vol. XLI, No. 4. the wiring diagram on this page, the cutting in of the con-tactors is accomplished by the momentary controller con-tact x, just before the shunt connections are made. How-ever, the control current for maintaining contactorsand h-2 in circuit is not held by the controller, the con-. Leyden Katwyk-Noordwyk Railway — Steel ConduitsMotor Cars of tact b-2 being locked to contactor h-2. If the main currentto the motors is broken, as, for instance, in passing a sec-tion insulator, the contactors do not close upon the re-energizing of the circuit and the shunt connection to thefield winding of the motors is not restored. Therefore,unlike the cutting in of a shunted motor, no short-circuitacross the commutator is possible. The weakened field isrestored merely bv reversing the controller handle to the to an insulated metal plate on the roof of the car. Allwiring is carried in steel conduit. Twenty-one tantalumlamps, divided into three circuits, are used for the illumi-nation of the car, car signs and signal lamps. OVERHEAD CONSTRUCTION The overhead construction on the interurban sections iscarried by latticed poles, which are set about 200 ft. these poles are furnished with channel-ironbrackets set back to back as shown in one of the accom-panying illus
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