420 
Report on the Trials of Implements at Cardiff. 
macbine ; in Eansomes' machine we find an open frame and a form of straw- 
shaker essentially differing from that used in all the other machines. 
In describing the machines we shall frequently have occasion to speak of 
the back and front, the right and left sides, and, to prevent confusion, it will 
be well at starting to explain how these terms are used. In the accompany- 
ing illustration (Fig. 5) of Marshall's machine we call that part of the machine 
Fig. 5. — Vieic of Messrs. Marshall, Sons, and Co.'s Threshing Machine^ 
showing the bach and right side. 
the front which in work is furthest away from the engine, and where the 
straw is invariably delivered ; the back is the part facing the engine, where, 
in this instance, the corn is delivered into sacks ; the side facing us, where 
the chaff is in this case delivered, we call the right; the unseen side, which 
has the rigger for the driving belt, we call the left side. 
As the power is usually conveyed by means of friction-belts from the drum 
to the other parts of a threshing-machine, we have noted against each machine 
the number of belts (exclusive of the engine driving-belt) used on each side. 
The arrangement of these belts is not always the same in machines sent out 
by the same makers, but should be noted, as a bad arrangement may result 
in an unequal wearing of the bearings. In one imimportant particular the 
. . illustration (Fig. 5) differs from 
Fig. Illustrating _ the arrangement of a the prize machine, since in the 
set-screw to the hearings on a drum-shaft, trial the chaff was delivered on 
tlie left side, but is here repre- 
sented as delivered en the side 
shown in the drawing. On the 
right side three belts are driven 
from the drum-shaft, the strain 
of the two belts pulling back- 
wards lessens the pressure pro- 
duced by the belt pulling for- 
wards, and the pressure by 
which the sheaf-corn, as it 
passes between the concave and 
the drum, tends to drive the 
latter upwards and forwards. 
This arrangement is good ; the 
■bearings of the drum-shaft on this right side will wear but little, and will 
not be liable to get hot. The arrangement of belts on the other end of the 
