METHODS OF CREAMING. 



75 



bowl and the speed at which it travels. The general 

 rule is that the centrifugal force increases in the same 

 proportion as the diameter of the bowl is increased, 

 speed remaining constant. In other words, if the 



BOWL OF NATIONAL 

 SEPARATOR. 



INSIDE DEVICES OF NATIONAL 

 SEPARATOR. 



diameter of a separator bowl be doubled, the centri- 

 fugal force is doubled, and its capacity to cream milk 

 is doubled. On the other hand, if the diameter of the 

 bowl remains constant, and the speed is doubled, the 



