340 



BRAKE CYLINDERS 



TYPE D, 8"X12", FREIGHT-BRAKE CYLINDER AND 

 RESERVOIR DETACHED 



The type D brake apparatus, shown in Fig. 3, is furnished, 

 with schedules HD-812 or KD-812, for freight cars the light 

 weight of which is not less than 22,000 nor greater than 37,000 

 lb., but the construction of which prevents the application of 

 the type C brake. The total leverage should never exceed 

 9 to 1. The connection between the auxiliary reservoir and 



FIG. 3 



brake cylinder should be as short as possible; if piping exceeds 

 8 or 10 ft., the braking effect is likely to be noticeably impaired. 

 The piece number of the freight-brake cylinder, with plain 

 pressure head, complete, is 2,447; of type D, freight auxiliary 

 reservoir, complete, 2,445. The piece and reference numbers 

 of the various parts are given in the accompanying list. 



PC. No. Ref. No. Name of Part 



1.216 2 Cylinder body , 8 in. X 1 2 in. 

 1,246 3 Piston and rod, includes 5 only. 



1.217 4 Non-pressure head. 

 2,305 5 Follower stud and nut. 



