arid Miscellaneous Implements at Hull. 
625 
like bell-cranks, by means of rope and pnlley upon bolts fixed to the frame, 
which pass through them at their angles. The shaft from the horse-works 
drives a chain-wheel at one of these angles, and a steel chain conveys the power 
to the ladder-shaft at the bottom of the hojiper. This substitution of steel 
for leather is an improvement on the machine last described. While the 
rick is low the bottom of the trough is near the ground, but is raised from 
3 to 7 feet higher by moving the crank. In the illustration given, Fig. 8, the top 
Fig. 8. — Messrs. Perldns and Co.'s StacJdng-MacMne, No. 5104. 
of the trough has been raised by the long ropes to its full height, the hopiper has 
been removed, and the bottom of the trough is partly raised. As the hopper- 
end is raised, the delivery-end is pushed farther on to the stack. The cost of 
this contrivance is moderate, adding only 57. to the price of the machine. 
Although the inclination of the trough was reduced by elevating its lower 
eud, this was not sufficient to prevent the straw rolling back on its passage, 
owing to the shortness of the teeth. Towards the end of the trial with 
straw we had an illustration of the evil of driving the ladder-chains by 
chain-wheels with a small groove. The groove on one of the wheels was 
partially filled up by straw wrapping around it, thus increasing its diameter, 
and causing the chain on the opposite wheel to sWp twice ; the diameters of the 
wheels being made different, the two chains of the ladder travelled at different 
paces. To prevent the rake-heads from turning over, iron spurs were used ; 
although they effected the purpose for which they had been added, they had 
the bad effect of catching the straw and dragging it back. 
The two-wheeled elevators come next in order. The first of these (No. 4839, 
Tasker and Sons) is in all respects the same machine as was highly com- 
mended last year at Cardiff, aud will be found illustrated and described on 
page 452 of the 'Journal' for 1872. It was not, however, shown in quite 
so good a form as last year, for the wooden slats then used as a protec- 
