. Air brakes, an up-to-date treatise on the Westinghouse air brake as designed for passenger and freight service and for electric cars . ^ Fig. 152. Actual Section and End View of Westinghouse Type DEmergency Valve the emergency pipe by a branch pipe and permits air to flow directlyfrom the emergency pipe to the atmosphere, setting the brakes in s^r-^f m:. Fig. 153. Diagram of Brake Cylinder emergency. The style of the valve is of the non-self-closing typeand must be closed by hand after being used. METHOD OF OPERATING SME BRAKE EQUIPMENT In giving an explanation of the operation of the SME eq
. Air brakes, an up-to-date treatise on the Westinghouse air brake as designed for passenger and freight service and for electric cars . ^ Fig. 152. Actual Section and End View of Westinghouse Type DEmergency Valve the emergency pipe by a branch pipe and permits air to flow directlyfrom the emergency pipe to the atmosphere, setting the brakes in s^r-^f m:. Fig. 153. Diagram of Brake Cylinder emergency. The style of the valve is of the non-self-closing typeand must be closed by hand after being used. METHOD OF OPERATING SME BRAKE EQUIPMENT In giving an explanation of the operation of the SME equip-ment, reference will be made to the diagrammatic views shown in AIR BRAKES 193 Figs. 154 to 158. In this discussion it is assumed that the non-operative brake valve on the rear of the car is in lap position. Charging. With the reservoirs charged and the brake-valvehandle in release position, air flows from the main reservoirs throughthe check valve to the brake valve and into the emergency feed groove i around the emergency piston 24 permits an equal-ization of pressure in the emergency pipe with main reservoir pressure,which is assisted by a small port through the rotary valve 5 of thebrake valve in all positions except emergency. Service Application. To apply the brakes, move the brake-valve handle to either one-car service position or
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