NO. 6 ET LOCOMOTIVE BRAKE 



259 



position; then all parts will assume the positions shown. The 

 feed-groove v is opened by the piston 26, and air from chamber p 

 will pass through it into the equalizing- valve chamber, thence 

 through port o to the pressure chamber, until full brake-pipe 



pressure is obtained in this chamber. The feed-groove v is 

 made of such a size that it will charge the pressure chamber at 

 the same rate as the feed-groove in a triple valve will charge 

 its auxiliary reservoir. 



