244 
I he Trials of Milking Machines , 1913. 
t 
with vacuum gauge and relief valve, fifty branch cocks, and 
complete length of piping. 
The following gives a comparison between the Omega and 
one of the competing machines. 
Both machines were set to milk the same four cows on 
different days, the Omega on April 25 and the other machine on 
April 21. The morning milking only being taken in each case. 
Lb. oz. 
Omega 
Another 
Machine 
Averaged 
55 
55 
55 
55 
55 
19 6 Milk per cow 
1 4 Strippings „ „ 
6f minutes’ time ,, „ 
16 9 Milk ,, ,, 
1 6 Strippings ,, ,, 
10^ minutes’ time „ ,, 
NOTE— The time taken includes fixing and adjusting the milking machine unit. 
Vaccar, Ltd. Second prize of 10 1. and silver medal. — This 
machine is so well known that it does not require the somewhat 
detailed description which we have given to the Omega. The 
system is the usual one adopted by this firm, and consists of 
rubber-lined teat cups connected to the receptacle, which stands 
on the ground, by a length of rubber tube through which the 
milk is drawn. These tubes are usually cut and a piece of 
glass tube is inserted to enable the attendant to note the flow 
of milk. The intermittent action of the vacuum is attained by 
means of a double cylinder horizontal duplex pulsator which is 
fixed to the top of the receptacle, this being connected to the 
vacuum main by a short length of armoured rubber hose. 
On April 25 this machine was put to work on a batch of 
cows which had previously been milked by another competitor. 
For sake of comparison, we will take the case of one cow of the 
batch which was known to be a difficult milker. The perform- 
ance of the Yaccar was as follows: — On the 25th the Vaccar 
extracted 18 lb. 4 oz. of milk, leaving 3 lb. of strippings, and 
accomplished this in 11 minutes. The other machine extracted 
18 lb. of milk, leaving 5 lb. 4 oz. of strippings in 13 minutes ; 
showing a distinct advantage for the Vaccar on all three items. 
The price of the Yaccar machine for milking fifty cows, 
which includes two machines each with a double set of cups 
capable of milking four cows at one time, is 116Z. Is. This 
price includes erecting and everything necessary to the milk- 
ing plant except the prime mover. 
We will now proceed to mention the other machines which 
were tried by the Judges, and to describe any salient feature 
without comment, taking them in the same order as the 
previous list. 
Davies & Dansome. Two machines were originally entered 
for competition, but one of them was withdrawn in the 
preliminary run. The competing machine was generally 
