362 



SAFETY VALVES 



The E-l safety valve, which has a range from 35 Ib. to 75 

 lb., Piece No. 10,526, is the valve most commonly used with 

 driver- and tender-brake cylinders, in connection with schedules 

 SWA, SWB, and U; on passenger cars temporarily used in 

 trains equipped with high-speed brakes; and with No. 5 

 distributing valve. 



The E-3 safety valve, shown in Fig. 2, is provided with an 

 adjustable exhaust regulating ring, by means of which the 

 drop, or range between the opening and closing points of the 

 safety valve, can be adjusted to any desired amount. It is, 



FIG. 3 



PIG. 4 



therefore, particularly adapted for use where it is desirable 

 to keep this range at any given amount, large or small. 



The E-6 safety valve, shown in Fig. 3, is a special valve not 

 used for general purposes. It is a part of and is regularly sup- 

 plied with the No. 6 distributing valve. 



The E-7 safety valve, shown in Fig. 4, is a special valve, and 

 not used for general purposes. It is a part of and is regu- 

 larly supplied with type L triple valves. 



The piece and reference numbers of the different types of 

 valves, and of the various parts of each, are given in the accom- 

 panying lists. 



