THE FARM SEPARATOR 



79 



tages that, in sections of the country where dairy- 

 ing is carried on extensively, they are found on 

 practically every farm, even though the farmer 

 may have only a very few cows. Hence a word 

 about the principles upon which their operation is 

 based and some general directions for their care 

 and use may not be out of place here. 



M OUTLFT 



milk Outlet 



Pig. 24. Vertical section view showing interior of cream separator. 



The principle of centrifugal separation. As 



was stated in the preceding chapter, their oper- 

 ation depends on centrifugal force. The old- 

 fashioned "sling-shot" serves to illustrate this 



