618 
Report on Cream-Separators and 
15. The following are the points of merit determined for the 
guidance of the Judges : — 
Power required to work Separator \ 
Quantity of milk per hour hour dealt with .. .. > 30 
Price of machine ] 
Lowness of speed 10 
Completeness of separation as determined by analysis) 
and general efficiency {e.g., 11 and 13) \ 
Simplicity of construction 15 
Power of adjustment for varying percentage of sepa-) , f, 
ration J 
100 
16. The following will, as far as practicable, be the order 
of trial : — 
Monday, July Zrd. — Preliminary runs with water by exhibitors, to enable 
everything to be got into perfect working order. 
Tuesday, Jidy 4th. — Trial of horse- and manual-power machines. 
Wednesday, July 5th. — Trial of steam-power machines. 
Thursday, Jidy 6th. — Final trials of machines, if considered necessary. 
One Hour's Trial. 
Time Milk 
commenced to 
flow. 
Time 
Cream 
com- 
menced to 
flow. 
Quantity of 
Milli passed 
through 
Machine. 
Quaiitity of 
Cream. 
Quantity 
of 
Butter. 
Quantity of 
Millc left 
in JIachine 
at the close 
of I'rial. 
Min. 
3 
cwts. qrs. Ibii. 
4 3 10^ 
cwts. qrs. lbs. 
0 1 G 
lbs. 
21 
cwts. qrs. lbs. 
0 0 121 
7 
5 
6 1 17f 
8 0 12 
0 1 20i 
0 1 24i 
m 
20J 
12 5 
1 2 11 
Time 
occupied in 
Clearing 
Machine. 
Min, 
Laval's . . 3 
Hamburg : 
A side .. 4^ 
B side . . 3 
mm. 
13 
26 
21 
Two Hours' Trial. 
Laval's 
Hamburg 
Machine : 
A side .. 
B side .. 
2 
8 2 18 
0 2 5J 
34| 
0 0 12i 
7 
11 2 33 
2 2 S » 
441 
7 
10 2 21J 
2 1 18^ 
47^ 
I • 1 
13 
26 
26 
* In this trial the milk left in the machine was weighed as cream, the machinists requesting It. 
As will be seen from the above table, all the machines 
were run first for one hour, " cold water having been previously 
passed through the Separator to ensure everything being in 
proper order before the trial commenced": in the first trial 
4 cwt. 3 qrs. 10^ lbs. of milk, or about 53 gallons, was passe 
through the Laval machine, and the, cream, which was churne 
in one of Messrs. Thomas and Tajlor's churns, produce 
21 lbs. of butter, weighed after passing through a butter- worker 
