FROM THE PRACTICAL VIEWPOINT 



FIG. 13 



factured by many concerns which handle pasteur- 

 izing apparatus. These batch pasteurizers consist, 

 as shown in Figs. 12, 13, 14, H-B, 1,5, 16, of hori- 

 zontal tanks, constructed sometimes singly and 

 sometimes made with two compartments in the same 

 apparatus. In Fig. 16 we see a tank which is in the 

 form of an upright cylinder. These tanks are in 

 some cases surrounded by an insulating jacket. 

 In others there is an open space between the inner 

 and outer shell, through which hot water is made 



67 



