Report on the Trials of Implements at Oxford. 
503 
cbunis shown in tliis class to a trial with Gl lbs. 8 ozs. of milk which had not 
been skinuiicd ; some of it was two days old, and the whole had become sour. 
Tlie temiierature of the milk was G5°. The quantity of butter varied from 
2 lbs. 9 ozs. to 3 lbs. lOozs., and the time occupied in churning from 10 minutes 
to 25 minutes. 
CVffss 2. ChuDis worked hij horse, steam, or other power. — As thcj' were 
all of large capacity, it was found impracticable to try them with cream, from 
the difliculty of obtaining suflicient quantity, and therelbre the trials were 
confined to milk alone; in order that there should be no ditference in the 
qualit}' of the milk, the Judges put the whole in one of Taylor's large 
churns, and served it out to the different competitors in lots of 6 gallons ; each 
time the measure was filled, the churn Irom which it was drawn was turned 
round two or three times ; when each competitor had received G gallons they 
commenced again at the tirst, and so continued until each had received his 
full quantity, no competitor receiving two measures in succession, with the 
exception of 'J'homas and Taylor, whose churn was of extra large size, and, 
therefore, was allowed double quantity ; the others received 198 lbs. each ; the 
temperature of the milk was 70° ; the quantity of butter produced by each 
varied from 2 lbs. IJiJ oz. to 4 lbs. li oz., and the time occupied in churning 
from 15 min. to 35 min. ; they were driven at speeds varying from 30 to 45 
revolutions jier minute, owing to the high temperature the butter was in some 
instances very soft and inferior in qualitJ^ It was thought desirable to test 
the comparative power consumed by the three churns which were seh ct jd for 
prizes, consequently a trial was made ; each churn was supplied with 40 gallons 
of water, and run for 10 minutes. The results are given in the subjoined 
table. The satisfactory result in Bradford's case is accounted for, partly by 
his midfeather principle, giving an impetus to the churn, and partly by the 
slow speed required, whilst the excessive power consumed by Kobinson and 
Eichardson's churn was due to complicated gearings. 
SECTION IX.— CLASS 2. 
Table XIX. — Dynamometrical Results with Power Churns. 
s 
Revolu 
ute. 
t- 
O 
on 
< 
a 
« 3 
EXHIBITOE. 
o 
o 
1'bice. 
Eemakks. 
ii 
& 
£ 
S 
z 
£ s. 
d. 
£ s. d. 
E. Tinkler 
162 
442 
40 
34,590 
7 5 
0 
1st Prize 4 10 0 
Eobinson and Richardson 
132 
3550 
40 
101,466 
6 15 
0 
2nd „ 0 0 
T. Bradford and Co. 
10 
572 
30 
23,560 
8 10 
0 
3rd „ 2 10 0 
N.B. — The three machines above mentioned were selected for Dynamometrical ex- 
periment from the entire number tried. 
^ Class 3. CJieese Tubs. — Here there was only one exhibitor, Mellard's 
Trent Foundry Company, No. 5235, which was on Cockey's principle, with 
considerable alterations and additions, patented by Pugh ; its merits mainly 
depend on the facilities it offers for regulating the temperature of the milk. 
Prize of 3?. awarded. 
Class 4. Cheese Presses. — There was little variety and no material improve- 
