186 



Milk and Its Products 



Fig. 24. Section of 

 separator bowl of 

 " travel " type. 



aid in the completeness 

 of the separation or to 

 increase the capacity. 

 These contrivances have 

 been of two general types: 

 one to break up the wall 

 of milk, and so give the 

 particles of milk and 

 cream a better chance to 

 pass by one another in 

 their passage from the 

 center to the outside of 

 the bowl; the other, a 

 series of interruptions to 



was hollow, and 

 the separation 

 was caused di- 

 rectly by the 

 centrifugal pres- 

 sure acting upon 

 the milk in a 

 mass. In the 

 later machines, 

 various contri- 

 van ces have 

 been introduced 

 in the bowl to 



Fig. 25. The Sim- 

 plex separator. 



