P C PASSENGER-BRAKE EQUIPMENT 



293 



so as to release the pressure on that part of the valve and 

 insure sufficient differential pressure on the valve to hold it on 

 its seat at all times. 



Equalizing Cylinder. The equalizing cylinder is shown in 

 section in Fig. 9. The equalizing slide-valve seat is shown in 



Piston fnef 







e 











e 







,9 







FIG. 10 



FIG. 11 



Fig. 10. Port c leads to the emergency reservoir; port c f , to 

 the under side of the emergency-reservoir check- valve; port b, 

 to the brake-pipe through chamber B; port e, to the direct and 

 graduated release cap 18; port w, to the reduction-limiting 

 chamber exhaust ; and port v, to chamber G, the small end of 

 the service-reservoir charging valve. Ports m unite and lead 



