a7id Miscellaneous Implements at Hull. 619 
of both classes showino; a great improvement in construction 
since tliej were exhibited last year at Cardiff. 
In describing the machines it will be convenient to classify 
them according to the principles of their construction. I shall, 
therefore, leave the four with horse-jiower below the frame to be 
described last. Nine of the other eleven machines are carried 
upon four wheels, and the other two upon two wheels only ; 
taking the four-wheeled machines first, it will be seen that three 
of them fold the upper part of the trough down, two of them slide 
it telescopically into the lower part of the trough, and three 
fold it over to lie flat upon the lower half, while in the ninth 
machine a net is substituted for the ladder and trough. 
No. 4841. Tasker and Sons. This machine is in naany respects a great im- 
provement on the four-wheeled machine by the same makers, that was highly 
commended at Cardiff, and described and illustrated in last year's Report.* 
The trough now folds downwards instead of over, and is well braced with iron. 
A very simple arrangement for raising and folding it now takes the i)Iacc of 
the complicated contrivance of poles and ropes then used. The carriage-lrame 
is lighter, the hopper is round instead of square, and a clever device is adopted 
for keeping the ladder-chains taut. The trough is raised by the wire-ropes 
wound upon V-grooved pulleys, and fastened to the heads of the two movable 
shafts which terminate in friction-rollers ; it will be seen that the bottoms 
of these shafts revolve upon the iron axle of the fore-wheels; this is an im- 
provement on a similar arrangement shown last A-ear in Messrs. Marshall and 
Sons' machine ; the shafts there rested on the fore-part of the carriage-frame, 
and the chains at first starting worked at such an acute angle with the 
rods, that power was wasted, and the winch unfairly strained. The friction- 
rollers at the top of these shafts run beneath metal rails on the under side of the 
trough. At their lower extremities these rails are made to project from the 
imder side of the trough ; as soon as the shafts are drawn back far enough to 
reach the curved parts of the rails, the trough itself rises at a quicker rate, 
and the friction-rollers begin to act as pulleys to the ladder-chains, keeping 
the curve of the slackened chains away from the wheels that drive them at 
the bottom of the trough. In Fig. 4, p. 620, showing the machine unfolded, the 
trough is not raised to its full height, and the shafts must be drawn two or three 
feet further back before the rollers will reach the projecting parts of these rails. 
The wire rope that moves the shafts is wound upon a drum furnished with two 
V-shaped grooves ; in the second of these another wire rope is carried tightly 
wound up when the trough is open. It will be noticed that the trough when 
opened is braced by means of wire ropes attached near its two extremities and 
carried over two short wood poles ; when the trough is to be folded the lower 
end of these ropes is hooked on to the spare ropes in the second V-pulleys. 
The trough having been previously lowered, the handle is turned and the 
shafts are drawn up ; the second ropes are then slackened out till the top of the 
trough hangs down and can be fastened to the axle of the fore-wheels, as shown 
in Fig. 5. In this figure the daughtsman has, by mistake, represented the 
hopper as square instead of round. Fig. 5 shows the machine folded for 
travelling short distances, but by lowering the shafts until their pulleys touch 
the joints of the trough it can be packed in nmch smaller compass for putting 
away in a shed. The trough of this machine is well braced, of ample width, 
and not too heavy ; the round hopper formed of iron-bound wooden staves is 
* ' Journ. Koyal Agric. Soc.,' 2Dd Series, vol. viii. Part 2, No. XVI. p. 450. 
