DAIRYING 65 



514. The Wizard Agitator is a rectangular wooden vat the 

 inside of which is lined with tinned copper. A spiral coil of tinned 

 copper resembling a series of discs extends through the vat and 

 by turning this at a speed of 60 revolutions per minute the cream 

 is stirred or mixed and its temperature changed by pumping either 

 warm or ice water which is held in a box at one end of the vat, 

 through the inside of this spiral coil. The water pump is attached 

 to one end of the vat and may be used or not as desired. 



The vat is covered and made in sizes of 300 to 1000 gallons. 



Plate 19 Eclipse Cream Ripener 



515. The Simplex Cream Ripener is somewhat like the Boyd 

 ripener. The interior is tinned copper and the outside sheet steel, 

 some insulating material being placed between the two. Several 

 rows of pipes are suspended in the vat and these swing back and 

 forth through the cream changing its temperature according as the 

 pipes are warmed or cooled by water passing through them. 



516. The Eclipse Cream Ripener contains a coil of pipe run- 

 ning from one end to the other of the vat and this stirs the cream 

 as well as changes its temperature when it revolves at a low speed. 



Several other modifications of these types of cream ripening 

 vats are on the market, the essential features of them being some 



