. Electric railway journal . LONDON UNDERGROUND EXTENSION—FIVE-CAR SUBWAY, TRAIN OPERATING OVER MAIN LINE RAILROAD TRACKS IN ^SUBURBS- 872 ELECTRIC RAILWAY JOURNAL [Vol. XLIX, No. 19. LONDON UNDERGROUND EXTENSION—GROUP OF WOMEN GUARDS, OR GATE WOMEN, WHO OPERATE THE NEW SERVICE AND ARESUBORDINATES OF THE MASCULINE OFFICIAL APPEARING AT THE LEFT OF THE ILLUSTRATION through the train, which is composed of a motor carat the front and rear and three trailers between a potential relay is fitted on each motorcar, and this drops all contactors on that car when theshoes lose current.
. Electric railway journal . LONDON UNDERGROUND EXTENSION—FIVE-CAR SUBWAY, TRAIN OPERATING OVER MAIN LINE RAILROAD TRACKS IN ^SUBURBS- 872 ELECTRIC RAILWAY JOURNAL [Vol. XLIX, No. 19. LONDON UNDERGROUND EXTENSION—GROUP OF WOMEN GUARDS, OR GATE WOMEN, WHO OPERATE THE NEW SERVICE AND ARESUBORDINATES OF THE MASCULINE OFFICIAL APPEARING AT THE LEFT OF THE ILLUSTRATION through the train, which is composed of a motor carat the front and rear and three trailers between a potential relay is fitted on each motorcar, and this drops all contactors on that car when theshoes lose current. This is necessary because, whenno current passes through the main coil of the current-limit relay, it ceases to exercise its control over the rateof picking up contactors. The controller has four forward points and two re-verse points, of which Nos. 2 and 4 are running pointswhere all resistance is cut out. A useful provision inthe control is that, if in the course of the automatic notching-up the controller handle is brought back tothe first or third notch, as the case may be, the auto-matic closing of contactors is stopped, but those alreadyclosed are kept up. Another fea
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