A T O. 6 ET LOCOMOTIVE BRAKE 249 



The feed-valve pipe leads from the B-6 feed-valve to the 

 pipe bracket of the automatic brake valve and conveys air 

 at feed-valve pressure to the automatic brake valve. 



The excess-pressure governor pipe leads from the feed-valve 

 pipe to the chamber above the diaphragm in the excess- 

 pressure head of the duplex governor. 



The reducing-valve pipe conveys air at a pressure of 45 Ib. 

 from the C-6 reducing valve to the independent brake valve 

 and the air-signal pipe. A branch pipe leads from the reduc- 

 ing-valve pipe to the combined strainer and check-valve 

 through which air passes to the signal pipe. 



The gauge pipe L conveys air from the brake-cylinder pipe 

 to the red hand of the small duplex gauge, which thus registers 

 the pressure in the locomotive brake cylinders. 



The governor pipe K leads from the pipe bracket of the auto- 

 matic brake valve to the chamber below the diaphragm in 

 the excess-pressure head of the duplex governor. It supplies 

 air at main-reservoir pressure to this chamber when the auto- 

 matic brake valve is in release, running, or holding position. 



The gauge pipe U is connected to the brake pipe below 

 the double-heading cock and leads to the black hand of the 

 small duplex gauge. The black hand of this gauge therefore 

 registers brake-pipe pressure at all times, whether the double- 

 heading cock is open or closed. 



The equalizing-reservoir pipe connects chamber D of the 

 automatic brake valve to the equalizing reservoir. 



The gauge pipe M leads from the equalizing-reservoir con- 

 nection of the brake valve to the black hand of the large 

 duplex gauge. The black hand of this gauge therefore registers 

 equalizing-reservoir pressure at all times. 



The application-cylinder pipe connects the automatic and 

 independent brake valves with the application cylinder of the 

 distributing valve. 



The distributing-valve release pipe leads from the application- 

 cylinder exhaust of the distributing valve to the independent 

 brake valve. 



The release pipe extends from the automatic brake valve 

 to the independent brake valve and connects the automatic 

 brake valve with the application-cylinder exhaust port of the 



