The Westinghouse Air- 

 Brake Handbook 



AIR-BRAKE EQUIPMENT 



EQUIPMENT AND SCHEDULES 



INDEX OF EQUIPMENT 



The air-brake and air-signal equipments manufactured by 

 the Westinghouse Air-Brake Company are divided into so 

 many classes and each class contains so many devices that a. 

 positive means of identification is necessary in order to facili- 

 tate the ordering of apparatus. The scheme of identification 

 adopted is given in the accompanying table. It will be noticed 

 that all devices of a similar character are included under a 

 single catalog group number, and that the units of each group 

 are distinguished by individual numbers. For example, triple 

 valves are given under the group 3,210, while the unit number 

 of the type P triple is 3,210-2 and that of the type K triple is 

 3,210-5. Apparatus no longer furnished, but still in service, 

 and special devices are not listed in the regular catalog of the 

 Company or in the accompanying table; they are listed in 

 Part Catalog Supplements, which are furnished on request. 

 The last column of the table shows the date of current issues 

 of all part catalogs. 



LOCOMOTIVE BRAKE EQUIPMENTS 



A large number of locomotive air-brake equipments are in 

 general use, and these differ greatly in detail. Each equipment 

 has, therefore, been given a designating symbol, such as. 

 2 



