Report on the Trials of Implements at Oxford. 469 
Class 1. — For Mills luith Stone Grinders, for grindinrj Agricultural Produce 
into Meed, hy Steam or llorsc-power. £20. 
Eleven exhibitors came forward. The great variation in jDrice, which 
ranged from ZOl. to 86?., was particularly noted by the Judges. We cannot 
see how the high figures can be justified. Derbyshire stones are quite good 
enough for farmers' use ; but even if French bm-rs are i^referrcd a good mill 
ought to be bought for about 50?. The table prepared by Mr. Amos Jun. 
contains the results of the dynamometer experiments to which each mill was 
subjected. By reference to the 5th and 8th columns, which give the units of 
power required to grind 1 lb. of barley and wheat, it will be seen that the 
variation was immense, not only as between diftereut mills, but in the same 
mill when ojDcrating on barley or wheat. This was probably, partly at least, 
the result of mismanagement. The influence of these figures in determining 
the ijrizes was subservient to the consideration of quality and quantity of 
work performed, indeed it must be apparent that the less thoroughly the corn 
was ground the lighter would be the operation. It will be seen that the first 
prize mill consumed more power than the second or third prize, and all 
were more than 100 per cent, in excess of the article No. IG, shown by 
Weighell's Mill, 6751, was chiefly commendable as strongly framed, making 
good work, and being very reasonable, viz., 30?., with 3-feet diameter Derbyshire 
stones. The frame was of wood, and the corn fed from the hopper in the old- 
fashioned way ; which is probably best for a farmer, as requiring less delicate 
adjustment, and as indicating by its rattle when the feed is regular. The 
gearing was as 54 to 34, the revolutions 140 per minute, and very imiform and 
steady throughout ; the quality of both barley and wheat-flour equal to test- 
sample. 
Messrs. Turner's Mill, price 55?., was exceedingly well made. The frame 
is of cast-iron ; the table, which is very strong, supported by iour columns, 
5 inches in diameter. Foundation-plate, columns, and tabic, are held together 
l)y bolts running down the centre of each column. The gearing is by mitre- 
wheels. The bridge-tree suj^porting the shafting carries the pot with brass 
toe, adjustible by a lever worked by a wheel and screw. The grain is 
delivered to the stones by a silent feed — which we believe was Sir W. Fair- 
baim's invention — the corn falls upon a revolving cup, and is distributed 
evenly into the stones ; the tube of the hopper is adjustible, being raised or 
lowered according as it is desirable to supply more or less feed. The stones, 
4 feet diameter, are French burr, and enclosed in a stout iron vat. A screw 
crane is fixed on the table for lifting the runner. The bearings are large 
and well lubricated. The mill worked beautifully ; friction very slight. 
The mill exhibited by Marshall, Sons, and Co. (Limited), was supported on 
strong frame, the gearing being by mitre-wheels driving 3 ft. G in. Derbyshire 
Greystones. As the toe wears a thread on the shaft allows of the gearing 
being altered. This mill was run at 140 revolutions. Price 54?. 
The mill shown by the " Heading Iron Works " was well made, the frame 
containing much weight of metal, the price aj^peared enormous, viz., 80?. 
■without crane, for which an additional 6?. was charged. It is a large mill, 
the stones 4 feet in diameter, French burr bed, and Peak runner. The work 
was good, the mill went very steadily. 
Awards. 
6751. John Weighcll 
4836. E. R. and F. Turner 
7083. Marshall, Sons, and Co 
4014. Heading Iron Works Company ., 
Commended. 
£8 
7 
5 
T. Baker. 
