FORTY-FIRST ANNUAL CONVENTION 197 



perimented with a number of different kinds of tanks to de- 

 termine their cost and efficiency. 



As a result the rectangual tank shown in figurei, gave higli- 

 ly satisfactory results. Later a round tank, shown in figure 2, em- 

 bodying the features of the rectangular tank, constructed with 

 the assistance of A. L. Haecker, of Wood Bros Silo Co., Lin- 

 coln, Neb., was found to give satisfactory results and has the 

 advantage of being constructed cheaper than would be possible 

 for a rectangular tank. The committee is still working on a 

 substantially built, well insulated metal tank. 



Uuon the recommendation of the committee the Associa- 

 tion of Creamery Butter Manufacturers adopted the round and 

 the rectangular tanks as shown in the above cuts as the official 

 tanks of the Association. This Association has already taken 

 steps to have these tanks manufactured and distributed to par- 

 ties interested at the lowest possible cost. To those desiring 

 to build their own tanks, plans and specifications will be furn- 

 ished by the American Creamery Butter Manufacturers' Asso- 

 ciation. 



Tank's Essential Features. 



The following paragraphs explain briefly the essential fea- 

 tures of these tanks : 



The official tank is designed so that the cooling water cir- 

 culates around and under the cans. The water coming in 

 through the intake is discharged near the bottom of the tank. 

 In this way the warmer water is being displaced constantly. 

 The ten-gallon cans are raised sufficiently to allow of complete 

 circulation of the water. Strips of wood or metal in the bot- 

 tom of the tank are provided for that purpose and also to pro- 

 tect the bottom of the tank. A swinging arm made of one-half 

 inch steel holds the cans down, and a metal lug in the bottom 

 of the tank engages the lower run of the can and prevents it 

 from swinging outward when only partially full. 



In addition to the ten-gallon cans for holding cream, space 

 is provided for two five-gallon cooling cans of the shot- 

 gun type. These cans rest on a projecting metal hook. The 



