38 



After I had run my 

 heater for a month I was 

 amused to hear that 

 K. Hansen & Schroder 

 had made a heater 

 whereby they obtain the 

 same result by other 

 means, and though not 

 st rictly a centrifugal 

 heater, I class it under 

 these. As after all it is 

 the centrifugal force of 

 the dashers and the para- 

 bolic shape of the drum 

 which spreads the milk in 

 a thin film over the heat- 

 ing surface and elevates 

 it. Fig. 27 represents 

 this heater, consisting of 



a wooden covered steam jacket A, which is swung on pivots 

 P. Steam enters at U above and the condensed water escapes 

 through the water-lock W, both being connected by a union U. 



Fig. 27. 



Fig. 28. 



