Fig. 100. 



Kleemann & Co. (Berlin, Germany) constructed a hand 

 pasteurizing heater shown in Fig. 100. To the left is an iron 



low pressure boiler 

 (B) connected with 

 the jacket of the 

 heater by a pipe be- 

 low and above, by 

 which a constant cir- 

 culation of the heat- 

 ing water is ob- 

 t a i n e d, heating 

 the milk in the 

 tinned copper vessel 

 A. A hand stirrer 

 is provided to agi- 

 tate the milk. The 

 smallest size holds 

 100 Ibs. of milk, will 

 heat to 190 and 

 costs about |90. It 

 seems to me that 



this idea could be modified so as to have shut off cocks on the 

 pipes connected with the heater and water connections for 

 cooling. 



Creamery Package Mfg. Co. (Chicago), has a farm pasteur- 

 izer similar to the ''Pasteur" for places where no boiler is 



available. Fig. 101 gives a general 

 idea of it. It consists of a cylinder, 

 in the lower part of which is a fire 

 place for heating the water, in the 

 upper part, where an inner cylinder 

 provided with a hand-stirring de- 

 vice, holds the milk. When heat- 

 ed, the fire is drawn and ice water 

 is circulated between the two cyl- 

 inders from an overhead tank. It 

 is made in sizes of 10 gab, 20 gal. 

 and 40 gals. This firm also sells a 

 vertical tank pasteurizer devised by 

 Nelson, and a continuous one, the 

 Ideal, which seems to be like the original Fjord. 



