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(calefactor) through the horizontal tube J^L 3), then descends into 

 the worm of the calefactor, rises through the collecting cylinder (9), 

 intermixing thoroughly, and from there reaches the worm of the 

 refrigerator through the tube (10), where it becomes cooled by 

 contact with the cool wine surrounding the tube. 



Thermometers (6) and (11) record the temperature of the water 

 jacket, and that of the wine coming out of the calefactor and out 

 of the refrigerator. 



Before starting, the steam generator is filled with water through 

 the plug (2). When the level of the water reaches the overflow 

 tap (3), the plug (2) is closed and the fire lighted. 



Directly the thermometer (6) records 80 C. (176 F.) the top 

 is opened to allow air to escape, and the wine is introduced through 

 the delivery controlling tap (7). When the wine has filled the 

 worm collector and steam generator, it reaches the top, which is 

 closed, and the flow of the liquid, as well as the fire, are regulated 

 in such a way that the thermometer continuously records the 

 required temperature for pasteurisation. 



When the operation is finished the fire is put out, and all the 

 parts of the machine are emptied by taps fixed for that purpose. 



Perrier-Deroy's Pasteuriser. 



This apparatus is very simply worked and can be confided into 

 the hands of anyone. Heating takes place rapidly and regularly 



