17 



longer warm than the other, but as far as practical results they are 



about alike and the features of 

 both, may be traced in most of 

 the German and English heat- 

 ers. 



FJORD HEATERS (CHURN 

 HEATERS). 



Thus in England R. A. 

 LISTER & CO of Dursley make 

 the one illustrated in Fig 6 and 

 judging from appearance a very 

 substantial and well made heat- 

 er it is. 



In Germany " Bergendorf er 

 Eisenwerk '" constructs an ap- 

 paratus shown in Fig. 7. The 

 main difference is the milk in- 

 take which is from an open 

 gutter M into the cover which 

 has an open pipe in the centre 

 round the shaft of the stirring 

 apparatus. The steam enters at 

 s and condensed water escapes 

 at N. The milk outlet is at K 

 and the last milk is emptied at v. 



The well known manufact- 

 urer Ed Ahlborn of Hildesheini 

 makes a very neat modification 



Fig. 7. 



Fig. 9. 



