100 



SKIMMING EFFICIENCY OF THE SEPARATOR 



arator base and its foundation. The spindle must be true, the 

 bearings and bushings intact and the internal contrivances of 

 the bowl must be undamaged and in their respective places. 

 The bearings must be fed with oil continuously, must be pro- 

 tected against dust and other material increasing friction, and 

 the bowl and internal contrivances must be handled with care, 

 to prevent damage which would cause to throw the machine 

 out of balance. 



Effect of Cleanliness of Separator on Skimming Efficiency. 

 Milk, even in its best condition, contains a certain amount 

 of impurities such as dirt, dust and other foreign matter gain- 

 ing access to it during its production. This, together with par- 

 ticles of viscous nitrogenous matter naturally present in milk, 

 Table 10. Showing the Effect of Clean and Unclean Separa- 

 tors on the Per Cent of Fat in the Skim Milk. 



