CREAM SEPARATION 



65 



bowls, came the small separator with hand power for 

 farm use. Many separators now, and yet only a small 

 proportion of the total number of machines on the farm, 

 are driven in a similar way to the larger ones in the 

 creameries. Electricity, gas, and steam are the powers 

 usually employed. Occasionally a treadpower is found. 

 Gas is the most common 

 form of power on the 

 farm, and steam is usu- 

 ally employed in the 

 creamery. Figs. 23 to 32 

 show the improvement in 

 the construction of hand 

 and power driven sepa- 

 rators. In some cases 

 the supply tanks are 

 lower, the mechanism is 

 more simple, they run 

 easier, they have greater 

 capacity, and they are 

 more efficient than they 

 were fifteen years ago. 



As the dairy industry 

 has grown, there has 

 been a demand for a 



greater Variation in the FIG. 25. - A Simplex hand separator. 



capacities of separators. At present there is a variation 

 in the hand machines from 80 to 100 pounds of whole 

 milk an hour to 700 or 800 pounds an hour, and in the 

 power sizes the variation is from the capacities of the 

 hand separators to 10,000 pounds an hour. Thus it is 

 seen that separators are made sufficiently small for a 

 herd of only two or three cows, and some are so large 



