. Electric railway journal . Hi Main Reaervoll Pipe Diagram of Air Brake and Safety Control Equipment for Double-End Car [531] 532] ELECTRIC RAILWAY JOURNAL [Vol. 50, No. 12 applied to the rail, the front door is opened, thesteps are lowered and the rear door in single-endequipments is unlatched so that it can be readilypushed open. The car cannot be started until thesteps are up and the doors closed, because thebrakes cannot be released with the doors open; andowing to the deadmans handle feature on the con- Exhaust Port. fcfmergence/ k,•Vain* y °- Deadmans Handle Feature of the Controller an
. Electric railway journal . Hi Main Reaervoll Pipe Diagram of Air Brake and Safety Control Equipment for Double-End Car [531] 532] ELECTRIC RAILWAY JOURNAL [Vol. 50, No. 12 applied to the rail, the front door is opened, thesteps are lowered and the rear door in single-endequipments is unlatched so that it can be readilypushed open. The car cannot be started until thesteps are up and the doors closed, because thebrakes cannot be released with the doors open; andowing to the deadmans handle feature on the con- Exhaust Port. fcfmergence/ k,•Vain* y °- Deadmans Handle Feature of the Controller andMethod of Operating Circuit Breaker troller, if the operator takes his hand off the con-troller handle while the car is in motion an emer-gency brake application will follow. A foot valve,interposed between the controller and the emergencyvalve, can be pressed by the motorman to relieve himtemporarily of the necessity for keeping his hand onthe controller handle. The control of the brakes, the doors, the steps andthe sanding apparatus is centered in one brakevalve, shown in the illustration on page 531. Thesix control positions are as follows: Release (doorsclosed) ; service (doors closed) ; lap (doors closed) ;lap (doors closed, brake handle off) ; lap (doorsopen), and emergency (doors open). The reasons
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