Report on the Trials of Implements at Cardiff. 4Gj 
pace was attained ; at a given signal tlie corn was thrown into 
the hopper, and the time occupied by jit in passing through 
duly noted. Samples were taken of the dressed corn and were 
set apart for a very careful subsequent examination and com- 
parison. Ten machines were selected for a second trial, in which 
the pulleys were replaced by the handles, and the machines were 
worked by the exhibitors' men in the usual way. The time 
occupied in this second run is recorded in Table IX., p. 466, in 
column II, and the awards given in column 12. 
Among the twenty-two implements tried, there were very few 
that presented any novelty in construction. The great majority 
were of one pattern, differing only in minor details, and it will 
be sufficient to confine our remarks on construction to the prize 
implements, and one or two of the others that presented some 
special feature of interest. 
Fig. 30. — Cooclis Corn-dre sinj Machine, No. 3148. 
No. 3148. J. Cooch. — lu this machine the riddle-shoe is placed low in the 
frame, and the hlast from the fan acts upon the corn as it falls from the 
hopper down to the riddle. The workmanship is throughout excellent, and the 
construction may be understood from the view given in Fig. 30. The handle 
is fixed upon a short driving-shaft bearing a spur-wheel with a small bevel- 
wheel in the centre ; the spur-wheel gears into the pinion above it, and thus 
moves the fan fixed upon the shaft that carries the pinion. The opening 
through which the air enters to the fan can be diminished by lowering the 
slide-board, which thus regulates the fjrce of the blast. The outside shaft 
from the bevel-wheel terminates in a cog-wheel, which gears into one or both 
of the two cog-wheels placed near the middle of the frame. These two 
cog-wheels are keyed upon the shafts of two feed-rollers placed at the bottom 
of the hopper. The feed-roller furthest from the fan is held in position by a 
lever balance-weight, shown inside the frame, at the opening for the escape of 
air and chaQ". The feeding space is thus self-regulating ; and if a stone has 
been shot with the corn into the hopper, it passes through without doing 
VOL. VIII. — s. s. 2 u 
