io8 



CLEAN MILK 



changing the cheesecloth filter after each cow is milked. This new 

 appliance is known as the Revolving Dairy Filter (Fig. 13). 

 Briefly, the principle is as follows: There are two parts. 1. A 

 reservoir to catch the milk which may be attached to an ordinary- 

 open milk pail. 2. A revolving disc attached to the under surface 

 of the reservoir. The cow is milked into the reservoir and the milk- 

 passes through an opening one inch in diameter in the bottom of 

 the reservoir through three thicknesses of cheesecloth and through 

 holes in the revolving disc into the pail. 



After each cow is milked the disc is turned by a handle so that 

 a fresh portion of cheesecloth and a new opening of the perforated- 

 Fig. 13- 



Revolving Dairy Filter. 



•disc is brought opposite the single 1 inch hole in the reservoir. Irt 

 this way eight cows may be milked with a fresh filter surface for 

 each cow and using the same milk pail. The opening through which, 

 the milk passes is also smaller than in any small mouthed milk pail. 

 As compared with the open pail more than three quarters of the 

 bacilli are removed by this filter. It is readily cleaned and sterilized 

 and is cheap.* 



For farmers using little care in cleaning their cows and large 

 mouthed milk pails the revolving filter is certainly to be recom- 

 mended. 



* Revolving Dairy Filter Co., 53 Union St., Portland, Maine. 



