CO-OPERATIVE BUTTER MAKING. 99 



The outfit for such a creamery would be : 



Engine (if one is used), two and a half horse power $150 



Two cream-curing tanks, $10 each 20 



Churn, 45 gallons 16 



Worker , 7 



Prints and tray 7 



Three carriers, $3 each 9 



CENTRIFUGAL CREAM SEPARATOR. 



The separation of cream from milk by power, in place of the 

 usual and long-practiced gravity method or letting it separate itself, 

 is of comparatively recent introduction. The work is accomplished 

 bj' an application of centrifugal force to the milk. It is not necessary 

 that the milk be set at all, as in the ordinary method, but instead 

 may be creamed at once on being drawn from the cow and while 

 still warm. At the present time there are two inventions for doing 

 this work, each involving the same principle but dilfering somewhat 

 in the arrangements for its application. One is known as the 

 DeLaval Cream Separator, and the other as the Danish Weston. 

 Both of them are of foreign invention. They are manufactured of 

 different working capacities, the steam-power machines creaming 

 from 800 to 1200 pounds of milk an hour, and the hand-power 

 machines from 150 to 400 pounds an hour. The se[)aration of the 

 cream from the milk is as complete as by any of the milk-setting 

 methods. 



A cut of a hand-power separator is given, known as the DeLwal 

 ''Baby" Cream Separator, which conveys a clear idea of the 

 machine. The milk flows from the vessel at top throuj^h a faucet 

 gauge into a bowl within the cylinder shown. This bowl containing 

 the milk revolves 6000 to 7000 revolutions a minute according as 

 the cream is desired thick or thin. The centrifugal foroe generated 

 b}' this rapid revolution forces the waterv and heavier particles of 

 the milk — the skim milk — to the outer section of the bowl, or to the 

 point most remote from the center, where it flows off through one 

 of the spouts shown. The cream, or the lighter particles of the 

 milk, takes a position on the inner surface of the milk and is forced 

 off through another conductor. The flow of skim milk and of cream 

 is continuous so long as the whole milk is supplied. 



The "Baby" Separator is designed for small dairies. One of 

 these machines was shown in operation at the New Gloucester 



