40 



Fig. 41. 



Vermont Farm Machine Co., Bellow Falls, Vt., A. H. Keid, Philadel- 

 phia, Pa., Dairymen's Supply Co., Philadelphia, Pa., and others, and 

 is, when well made, undoubtedly the most economical as far as utilizing 

 the water. 



It requires always a considerable fall, and this has prevented its 

 use in many creameries. 



Of the three constructions I believe c is the one which utilizes 

 the water most thoroughly when made, as the "Star" people make it, 

 with a very narrow water space, but this is less important where the 

 supply of water is large enough. 



Modifications of this cooler, made 

 to do away with the objection of its 

 drop height, have been made. I 

 illustrate a German one in Fig 41. 



This style has been in all angles 

 down to nearly horizontal, as in 

 Hochmuth's, but the great objection 

 to this style has been the tendency of 

 the cold milk to flow straight down 

 on top of that which was in the curves, thus diminishing the effect 

 considerably. Mr. Hochmuth tried to overcome this in Fig. 17, when 

 the cover is corrugated similar to those of the cooler. 



In Fig. 42 we have another cooler. B is a 

 circular corrugated surface with a smooth cylinder 

 inside, between which the water circulates. The 

 milk flows from the distributor A over B into the 

 gutter and out at D. While it in one way is more 

 compact than the Lawrence style, it uses only one 

 side of the cooling water and has the same objec- 

 tion of high drop, though not in the same degree. 



Several years ago MR. U. S. BAER, the expert 

 separator man v/orking for Laval, tried to overcome 

 the objection of the creamery men to coolers with 

 considerable fall and constructed a shallow 1 foot 

 wide gutter with a double bottom, in which the 

 water was made to go zig zag by half partitions. 



The only difficulty was the same as with all surface heaters that 

 when not perfectly level the milk would run on one side only. 



MR. A. H. BARBER, who made this cooler, improved on this by 

 making it as illustrated in Fig. 43. The cross section shows the cor- 



Fig. 42. 



