128 



SCIENCE AND PRACTICE OF DAIRYING. 



indicator is connected with the well of the drum. After creaming 

 has been effected, the drum, gradually settling to rest, empties 

 itself. 



The three separators for hand-use, Nos. '0, 0, and 1, and the 

 separator for the winch, possess an improved arrangement which 



Fig. 30. Arnoldt's Hand Separator. (Perpendicular Section through the Drum.) 



has been devised lately by the senior engineer of the factory, Herr 

 Oswald Arnoldt (fig. 30). 



The milk enters through one of the taps, and the cream and 

 skim-milk are conducted away through separated divisions of a tap, 

 which is surrounded by double rings of white metal. Their thick- 

 ness in the case of No. (0) is exactly '1, and in the case of the others 

 *3 centimetre, and the greatest internal diameter in the case of 

 (0), (0), and (1), and (2) (for winch power) is respectively 5, 9, 

 9, and 11 '5. Further details are contained in the following 

 table: 



