692 



DAIRYING. 



Fit*. 861.— Cooler Detached. 



Traverse bars of wood support 

 the milk-pan, and direct the 

 course of the stream of water 

 which constantly runs through it, 

 from one end to the other. The 

 water inlet is seen at A, the out- 

 let at B ; at C is a brass tube pass- 

 ing through the stuffing-box, 

 and this can be raised or low- 

 ered, so as to increase or decrease 

 the, depth of water inside. At D 

 is seen an opening, through 

 which, by means of a tube' from 

 the bottom of the milk-pan, the 

 milk can be drawn off from be- 

 neath the cream, thus gathering 

 the cream without the process 

 of skimming, and free 'from intermixture with skim-milk. 



The Orange County Milk-pan is shown in Fig. 862. Where 

 room is a desideratum, this is a convenient and desirable arrange- 

 ment. 



Based on the Swedish system, Mr. Cooley, of Vermont, invented, • 

 or rather adapted, in the year 1876, a method of cooling milk which 

 has great merits. There are two features, however, of the Cooley 

 system which are not found in the Schwartz system : first, setting 

 the milk-cans in a lidded box or tank ; secondly, completely sub- 

 merging them ; that is, 

 allowing the ice-water or 

 cold spring-water to flow 

 over the tops of the cans. 

 The milk -cans (Fig. 

 865) are round and deep, 

 with a lid fitting loosely 

 over the top ; a tap in 

 the bottom (for drawing 

 off skim-milk), to which 

 tap a tube is attached, of 

 India rubber ; at the oth- 



iMnhi 



Fig. 862.— Orange County Milk-pan. 



er end is attached a metal outlet, and this slides in a groove gradu- 

 ated to correspond with the narrow pane of glass inserted in the up- 

 per portion of the can, and designed to show how many degrees, of 

 cream have collected on the milk. By raising the outlet pipe in the 



