AIR COMPRESSORS 



75 



PC. No. Ref. No. Name of Part 





9,822 

 9,767 

 9,045 

 10,194 

 9,823 

 9,770 

 9,772 



Body. 



Cap. 



Pin in cap for chain. ~ 



Chain. 



Piston. 



Piston spring. 6 



Oil Cup for 8 $-In., Cross-Compound 5 

 Compressor. The oil cup shown in 

 Fig. 2, must be operated by hand. It 3 

 is furnished regularly with the 8J-in., 

 cross-compound, air compressor and 

 weighs 1 J Ib. The piece number of the 

 cup complete is 21,414; the numbers of 

 the various parts are as follows: 



FIG. 2 



Oil Cock. The oil cock shown in Fig. 3 

 is the one that is regularly furnished, unless 

 FIG. 3 otherwise specified, with all steam-driven 



air compressors except the 8$-in. cross-compound compressor. 

 It is operated by hand and weighs i Ib. The piece number 

 of the oil cock complete is 1,916. 



COMPRESSION GOVERNORS 



TYPES OF GOVERNORS 



There are three types of compressor governors now manu- 

 factured: Type S single governor, and type SD and type SF 

 duplex governors. The single governor is made in four sizes: 

 the type S-3 having J-in. steam connection, type S-4, with 

 1-in. steam connection, type S-5, with 1 J-in. steam connection, 

 and type S-6, with IJ-in. connection. The type S-3 governor 



