91 



from the can and let it slowly fall back in a 

 small stream. \ Canadian, Mr. 1*. \V. Strong, 

 of Brockville, Ont., patented this simple and 

 cheap device for aerating. Fig. 93 explains 

 itself. Strain the milk 

 through the bucket, which 

 has a perforated bottom, 

 and if more aeration is 

 needed lower the bucket 

 to the bottom of the ship- 

 ping can, when a valve 

 opens and lets in the milk, 

 which is hoisted up again, 

 and so on. 



D. H. Burrell, of Little Fig 93 



Falls, N. Y., makes the aerator, shown in Fig. 

 1)2, which explains itself. The bucket has a 



perforated bottom and the milk is strained into it, falling 



from there into the can. 



Mr. Boegild (Denmark) constructed a hollow cylinder 



over which the milk flows in a very thin film and is cooled 



by the air which passes through the cylinder. 

 Hundreds of devices for 



aerating milk have been patented, 



but most of them depend up- 

 on perforated tin dividing the 



milk in fine streams as it is 



poured into the shipping cans, as 



Fig. 94, the so-called Vermont 



strainer and aerator, or like those 



previously described. Others de- 

 pend on blowing the air into the 



milk like Mr. E. L. Hill, of West 



Upton, Mass. 



Fig. 94. 



