The Trials of Oream Sepamiors at BoncasieiK 517 
perature of separation 89°-96° F. Only -081 per cent, of 
butter-fat remained in the skim-milk, 97 9 per cent, (the 
third best result) being removed from the whole-milk. The 
loss during separation was small. Regulation of thickness of 
cream could be well performed. Cleaning, owing to the discs, 
took, of course, longer than in the ''Windsor." The time 
occupied in dismantling and cleaning was 21^ mins., and in 
setting up again ^ min. The construction of the machine was 
very good, and the loose swinging handle referred to before was 
attached. To this machine the First Prize was awarded. 
No. 4294, " Burmeister and Wain's " (Danish), size X, No. 1, 
price 23?. os. — This was a strong well-made machine, with open 
cylinder, and the same in 
principle as the power 
machine No. 4293, already 
described. It separated 3G 
gallons of milk in the hour, 
and required "IS horse- 
power, showing a good 
result as to power and 
efficiency, though not 
equal to either of the two 
" Alpha " machines. The 
number of revolutions of 
the handle was 54, the 
temperature of separation 
much the lowest of any, 
viz. 68° to 72° Fahr. The 
separation was excellent, 
as, although standing only 
fourth in order, 97-8 per 
cent, of butter-fat in the 
whole-milk was removed, 
and only "099 per cent, left 
in the skim-milk. In 
power of regulating the 
thickness of cream the 
Danish hand machine was, 
as was the case with the 
power one, decidedly the 
best, and could produce 
thick and thin cream at 
will, without stopping the motion. The loss of milk stands 
rather high, owing mainly to the large amount left in the 
drum. Dismantling and cleaning occupied six minutes, and 
Fig. 5.- 
-Section of Burmeister and Wain's 
Hand Separator 
