298 ILLINOIS STATE DAIRYMEN'S ASSOCIATION 



machinery, for the purpose of getting out a tank constructed 

 somewhat on the principle of the thermo bottle. 



The DeLaval Separator Company deserves a great deal of 

 credit for they have devoted a lot of time and money in trying 

 to get out a tank that v^ould enable the farmers to produce; ia 

 quality of cream that could be made into extra butter. 



The tank system for cooling cream is not a new invention. 

 In the 'early history of dairying, before the power separator was 

 in use, most every farmer used a tank for cooling cream and 

 milk ; and a very high grade of butter was made under the vari- 

 ous systems. It was necessary for the farmer to cool his cream 

 in order to get a separation of the fat. In other words, it had a 

 monetary consideration for him. 



With the introduction of the power separator the milk had 

 to be delivered every day in warm weather so that it would be 

 sweet enough to pass through the separator, hence the tank sys- 

 tem was abandoned. When the little hand separator took the 

 place of the power separator, there was no provision made for 

 caring for the cream. Fierce competition drove buyers to accept 

 cream of all grades and to pay the same price regardless of quali- 

 ty, hence the enormous quantity of low grade butter that we find 

 on our market. 



If a tank, similar to any one of the cuts shown here, had 

 been sold as an adjunct to the little hand separator as it should 

 have been, we would not now have so much poor cream. If we 

 can get the co-operation of the dairy schools, the dairy and ag- 

 ricultural press and the federal dairy division, we should be able 

 to induce every farmer who uses a separator to buy a tank that 

 will enable him to produce cream of good enough quality that 

 can be made into butter that will grade extras. The farmer will 

 do this, we believe, when cream is paid for according to quality- 

 Water Coiling Effective. 



Investigations made last summer in Oklahoma by the De- 

 Laval Separator Company during the hottest weather in August, 

 showed that cream could be delivered every second or third day 

 sweet enough for ice cream purposes, when it was cooled just by 



