CKEAM. 



28 1 



which have enabled manufacturers to increase the speed, 

 have caused them at the same time to reduce the diameter 

 of the bowl, which makes the modern machine much safer 

 than the first crude and heavy separators. 



Po7ver. — Considering its capacity, a well-built separator 

 requires comparatively little power, whether coal or 

 muscle. But as either is money, it is a matter of impor- 

 tance that none be wasted. Many so-called hand separa- 

 tors are- altogether too heavy to run by hand, hence in 

 selecting one see that it is easy to keep it running for 

 several hours. The tests made at the experiment stations 

 by dynamometer, as well as by measuring the steam con- 

 sumed, show that there is a great deal of steam wasted in 

 a creamery above that actually required to drive the separa- 

 tor; that "the turbines use steam extravagantly, but that 

 the small engine of the creamer)^ uses it still more extrava- 

 gantly." Due allowance must therefore be made for this 

 waste in comparing results obtained by various methods 

 of testing. The following table gives some of the results 

 published by the stations: 



Horse-power per 1000 lbs. 31ilk. 



These tests are made with single machines and do not 

 guarantee that all separators of the same makes consume 



