IS 



BTJ] l.KTIX 6G3, U. S. DEPARTMENT OF AGRICULTURE. 



machine 1ms a. sanitary faucet, through which the egg is drawn into 

 the cans. It is simple in construction and easily cleaned. A small 

 opening in the top allows the insertion of a hose for steaming. In 

 other refrigerated churns an upright cylindrical tank is surrounded 

 by brine coils inclosed by an insulated wall. A spiral dasher driven 

 by a motor rotates in the machine and churns the eggs. The eggs 

 usually are passed through a sieve into the machine. This churn 

 must be made to order. 



Churns without refrigeration. — This churn (figs. 18, 19, and 20) 

 consists of a metal barrel and a dasher. The dasher is connected 

 with the motor to a point off center of a crank disc, so that the same 



rotary motion is ob- 

 tained as when the 

 eggs are churned by 

 hand. The churn is 

 governed by auto- 

 matic stops, which in- 

 sures churning of each 

 lot of eggs for a uni- 

 form length of time. 

 Two churns commonly 

 are operated by the 

 same motor, a conven- 

 ient arrangement, for 

 one may be used for 

 whole eggs and the 

 other for yolks if de- 

 sired. 



The barrels are made 

 of monel metal 0.0320 

 inch thick, 1 or tinned 

 or nickeled copper 

 0.0322 inch thick. 2 

 They are 1 4 inches in diameter and 23 inches high, with an additional rim 

 or base 2 inches high at the bottom. The flange for draining is riveted 

 and soldered to the bottom of the barrel, which is made with a pitch to 

 the outlet, and extends through the base to receive a sliding gate porce- 

 lain-lined valve. This arrangement permits the draining of the con- 

 tents of the barrel without tilting. The dasher (fig. 20) is made of monel 

 metal or copper 0.1285 inch thick, 3 covered with nickel or tin, and is 

 1 inch less in diameter than the diameter of the barrel. The dasher 

 may be equipped with one or two blades as desired. This machine 



1 Equivalent to No. 20 Brown & Sharpe gauge. 



2 Equivalent to 24 ounces per square foot. 



* Equivalent to No. 8 Brown & Sharpe gauge. 



4 



/6V/5fl?«fer 



Half round f/anged drain riveted and 

 soldered h bottom of churn; outer end 

 full round threaded to receive faucet 

 Bottom of, churn and dr^/'r? made w/fh 

 pitch to insure perfect dra/nage. 



- Bottom of churn 



Gase. r/ve/ed 'and 1 so/c/e-r-ed' ?£> 6oc/y of cf?o 



Fig. 19.— Churn barrel. 



