CHAP. III. 



CHURNS. 



267 



than elsewhere) against the louvres of the diaphragm. And when it is 

 considered that at the slow and easy speed of forty to forty-five revolu- 

 tions per minute, the cream passes with this accumulative and in- 

 creased concussive force eighty to ninety tunes per minute through the 



Fig. 61. ' Cotswing 



louvres, its remarkable churning efficiency will be understood at once 

 by those who have had experience in churning. The lid is seen on 

 the bracing below. To this churn a drainer plug is fitted, and by 

 means of it the butter-milk is drawn out, leaving all the butter in the 

 churn ; the plug is seen in the lower half of the churn. 



The " Cotswing " churn (fig. 61), is one which simply oscillates, 



Fig. 62. The "Morning" Churn. 



like a child's swing-cot, and the cream is churned by being thrown 

 against each end of the churn alternately. It is, of course, extremely 

 simple alike in construction and operation, and also effective ; at the 

 same time, save on the ground of fancy, it cannot be recommended 

 in preference to the Diaphragm Churn. The " Morning " churn is a 



