622 
Report on Cream-Separators and 
is a pulley - wheel, A, for driving the two drums, which 
are firmly attached on the extremes of the axle B. The un- 
skimmed milk is introduced into the machine, by filling a 
funnel D through a tube d, into its respective drum, firstly 
into the ring e, fastened to the inner nave wall, out of which 
it is thrown through the ends of the tube separators n n, 
towards the inside of the drum. In the drum the separa- 
tion of the cream and skim-milk takes place by means of 
centrifugal force, the former gathering towards the upper part, o. 
When the separation of the cream from the milk has com- 
menced, the cream-cutter R has to be fixed in position, as 
shown on the right side of the machine. By continual feeding, 
the revolving cream o, will be lifted to the skimmer E, and 
flow into a vessel underneath. The separated milk is then forced 
by continual pressure of milk inside, through the tube b into 
the hollow ring H, which is fitted on the front of the drum, 
from which it is skimmed by the cutter r, and runs into a vessel 
underneath. The quantity of milk passed through this machine 
in the hour trial was as follows : a side of machine, 6 cwt. 
I qr. 17 lbs., or about 70 gallons (this includes 1 cwt. 2 qrs. 
5 lbs., or 17 gallons left in the machine, which under ordinary 
circumstances would have to be churned) ; the cream was 
churned and produced 19 J lbs. of butter. The milk passing 
through the B side of the machine, including 1 cwt. 2 qrs. 
II lbs. left in the machine, was 8 cwt. 12 lbs., the quantity of 
butter produced was 20 J lbs. The percentage of fat in the 
separated milk, after half an hour's running, was, on the A side 
of the machine '26, and on the B side •41. The discrepancy in 
the results of the machine was caused, in the opinion of the 
Judges, by the arrangement of the skimmers and the regulating 
of the feed. It was noted that this machine required very care- 
ful attention and regulating, one attendant standing on each side, 
and constantly altering the feed. It will be seen that there was 
a very large quantity of milk left in this machine, that would 
have to be churned. The smaller double-drummed machine had 
the misfortune to get a part of the casting broken during transit, 
and the Judges thought it unfair to give the results of the trial 
in its mutilated state. Price of the large machine, 250/. 
Perhaps the table opposite will more concisely show the 
results of the two trials. 
The Reading Iron Works Company exhibited, and obtained the 
Society's Silver Medal for, a Machine for washing Railway Milk 
Cans. The machine consists of a strong wooden tank, 6 feet long 
by 3 feet wide. At one end of this tank are three revolving 
bristle biushes, taper-shaped to fit the can, driven by me- 
chanical or horse-power, at 140 revolutions per minute. Two 
men, by the aid of this machine, can wash 200 cans per hour. 
