54:2 Report of tlic Trials of Ploughs, Harroicg, S^-c, at Hall. 
adjustable by 3 screws, and arc capable of adjustment so as to plough 
furrows from Gs inches to 11 inches wide. The tail of the plough is sup- 
ported on an upright friction-wheel fixed under the centre of the last mould- 
board. Tliis wheel can be altered vertically according to the depth of work 
required, but has no adjustment laterally. The draught is taken from the 
cock or bridle, and the latter is made wider than the beams, and is reversible- 
according to the number of horses employed. The first plough is without a 
slade, the second has one of about 20 inches in length. The mouldboards, share^ 
and coulters are well adapted to secure neat work. Most farmers have heard 
of Ball's " Criterion " share : there are few better, if as good. The wings of 
this share come out 7 inches ; the mouldboard, of excellent form, is 4 feet 
long and 9 inches deep. No fault could be foimd with the work. The beams- 
are not so strong or rigidly attached as to resist strain, and a careful test 
proved that this plough sprung considerably in work. Under these circum- 
stances, and the fact, above all, that no attempt is made to relieve the workman 
of his hard laboiu- at the headland — no mechanism whatever being supplied to 
facilitate turning — the Judges came to a unanimous conclusion that they 
could not award a prize. The arrangements for securing rigidity are not of a 
very perfect character ; thus this depends wholly upon the collars of the screw- 
rods. In front the beams are not rigidly connected at all, which, however, is 
partly compensated for by having one bar for both front wheels. The following 
sketch illustrates the connection between the fore part of the frames and the 
cock. After work it was evident that the 
^ig- 14:. frames had given way and fallen about of 
an inch from the beam ; and seeing that the 
attachment of the frames or bodies to the 
beams was only by two screws, it was not 
surprising. The frame should be made with 
a flange resting on the beam ; displacement 
would then be impossible. 
Corbeft and Peele. No. 2845. — This im- 
plement has wrought-iron parallel beams 
6 feet 10 inches long, the total length of 
the machine being 11 feet 6 inches. The 
beams are well braced by 5 connections, 
and, not being adjustable, are very rigid — 
an important point. The only means of 
altering the width is by two |-inch iron 
packing pieces, used on the front body only, 
and by reversing their position the width of furrow can be altered from 8 to 9 
inches ; to effect this alteration the packing pieces are placed inside the beam. 
This will be better understood by the aid of a drawing (Fig. 15), from which it 
will be seen that, in order to widen the furrow, the two packing pieces {h li) 
must be taken out and put on the right-hand side ; this is not a long operation, 
and very satisfactorj-, inasmuch as we get a certain, although very limited, 
alteration of furrow, and secure at the same time much more ligidity of beam 
than is possible with adjusting beams. The question occurs how often do we 
require a greater alteration than is here provided. Many of the ploughs com- 
peting at Hull varied from to 10 inches, but we question if in ordinary 
work they would ever be altered more than an inch or two. If required as 
paring ploughs, it is important that the beams should expand considerably, 
and for such work the double plough is well adapted. A friction-wheel 
is provided, which is vertical. The hind plough has a slade 14 inches long, 
the front plough a land side of 6 inches. .As in several other cases the frames, 
notwithstanding the attachment by two strong screws, dropped a little in 
work, and it would be better if they had flanges to cover the beam, as is shown 
in Fig. 16. The draught is taken from the beams just in front of the first 
[ 
