HOSE, COUPLINGS, AND FITTINGS 



381 



PC. No. Ref.No. 



Name of Part 



28,222 Galvanized annealed steel clamp, com- 



plete for If-in. hose, includes 5 and 6. 

 28,221 5 Galvanized annealed steel clamp, only for 



li-in. hose. 



4,866 6 Hose-clamp bolt and nut. 

 2,243 7 li"X22" hose. 



HOSE AND HP-4 COUPLING 



The hose and HP-4 coupling is the standard for signal-pipe 

 connection on locomotives and cars; also for brake-cylinder 

 connection between engine and tender with ET equipments 

 and schedules SWA and SWB. The piece and reference num- 

 bers are given in the accompanying list. 



PC. No. Ref. No. 



Name of Part 



28,510 



3,060 



3.279 



2,112 



28,222 



28,221 



4,866 

 2,243 



1|"X22" hose with HP-4 coupling and 

 f-in. nipple, complete, per pair. 



HP-4 hose coupling, includes 3 per pair. 



Hose-coupling gasket. 



H"Xf" threaded hose nipple. 



Galvanized annealed steel clamp, complete 

 for 1 J-in. hose, includes 5 and 6. 



Galvanized annealed steel clamp, only for 

 IJ-in. hose. 



Hose -clamp bolt and nut. 



li"X22"hose. 



HOSE PROTECTING COUPLINGS 



The hose protecting coupling is absolutely interchangeable 

 with the old coupling in every respect and is in fact identical 

 except that the new type has a flexible bead, instead of the 



FIG. 3 



ordinary bead, which is integral with the coupling casting. 

 This flexible bead permits the disengagement of the couplings, 

 when the cars are separated, before the pull is sufficient to 



