544 Report of the Trials of Plowjli^ Harrows, ^r,, at Hull. 
acts as a wedse, and further by a screw-bolt in the centre. The land-furrow 
Avlieel is adjustable by a wedge. The beams are made of 2k inches by ^ 
iron. The beams are 4 feet 2 inches long. The ploughs are raised or lowered by 
means of Pirie's patent leverage, which is used by Mr. Murraj'. This consists of 
a land-side wheel, acted upon by a leverage from the handles ; and the plough, 
raised on one side, is readily turned, although it must be allowed that a secoml 
wheel or skid, to take a bearing on the right side also, is preferable. No slade 
is employed on either plough. The coulter attachment slides on a projection 
on the beam. Here again, as in several instances, the draught is taken from the 
bridle or cock — an arrangement that was not considered by the Judges so 
perfect as when the draught comes direct from the centre of resistance. The 
best attachment is by a rod to each frame joined together by a link, and this 
terminating in one rod again (Fig. 18). These frames are very well stayed ; 
indeed, no other plough in the class appeared so strong, or capable of such good 
Fig. 18. 
a. Draught-rod from hindmost plough. I c. I.ink. 
6. Ditto from front plough. | d. Shigle rod to bridle. 
work. One point, however, was not liked, and that is the position of the land- 
wheel during work, which is nearly in the centre of the plough, and consequently 
interferes with steady motion, although to a certain extent it allows the plough 
to suit itself to the inequalities of the surface. The work was not cut clean, 
owing, it was said, to some defect in the under surface of the share, but also 
probably to the want of steadiness in the plough. The bottom was left very ridgy. 
E. Fage and Go. No. 2631. — A few words will suffice to describe this im- 
plement, as there is really nothing of novelty to chronicle. Beams of wrought 
iron 2 inches by i inch, nttnclied by two bolts and capable of variation, from 
7 to 11 inches. The draught is taken from a point in each beam rather in advance 
of the iront iJough : this is a good arrangement. The frames are adjustable 
by a slot. The ploughs arc supported by a vertical friction-wheel behind. 
Fig. 19. — SJcetcli of Perlcins's Douhle-furroiv Plough, No. 132. 
05- 
a. The beam. I d. Lever spring aim. 
h. The land-side wheel. c. Bow, with notdios to secure the spring 
c. 'I'he connecting rod. | bolt. 
