532 



MACHINES, WORK, AND ENERGY 



skim milk is forced to the outside of the separator and finally 

 past the lower rim of the disks as shown by the darker shadings 

 in the illustration. It will be noted that the wings, 2 and 2, 

 through which the whole milk passes, extend past the rising 

 column of cream, thus avoiding any remixing of the cream with 

 the milk. Since the fresh supply of whole milk is constantly 

 flowing into the separator down the tubular shaft, it forces 

 the separated cream upward and out at the cream outlet as 

 shown by the dark arrows on the light background, and it 



SMM-MJLK OUTLET. 



FIG. 332. Showing the construction and 

 operation of the cream separator. 



FIG. 333. The gearing of the 

 cream separator. 



also forces the separated skim milk upward and out at the 

 skim-milk outlet as shown by the light arrows on the dark 

 background. 



624. Advantages of the Cream Separator. The advantages 

 of using a cream separator are many: 1. The separation is 

 more complete than by other methods. 2. The separation is 

 best made while the milk is still warm, making it unnecessary 

 to cool and store large quantities of milk. 3. The skim milk 

 is more valuable for feeding purposes when thus obtained while 



