IS 
BULLETIN 663, U. S. DEPARTMENT OF AGRICULTURE. 
n 
machine has 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 14 inches in diameter and 23 inches high, with an additionalrim 
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. 
3 Equivalent to No. 8 Brown & Sharpe gauge. 
r 
f&'c/fame^e.r 
tlaff round f/anged drain riveted 1 and 
soldered fa bpffom of churn; outer end 
full round threaded fa receive faucet: 
Bottom of \ churn and drain made with 
pitch lo insure perfecl drainage. 
- Botfom of churn 
Base, riveted 'snef so/c/ereo' fa> 6od*/ of cfivrr? 
Fig. 19.— Churn barrel. 
