Report on the Trials of Implements at Cardiff. 451 
at their upper extremity they carry friction rollers, C, which slide upon the 
under side of the trough. The end of the wire rope is attached to the upper 
end of the rod near 0 ; it then passes over the pulley B to the dnini A. 
By turning the handle placed in front of the fore-whcols, the rope is unwound 
from the drum, and the trough lowered to any height that may be desired. 
When the trougli has been opened out for work, tlie joint at D is kept rigid 
by a joint-pin. To fold the trough up it is first lowered to a horizontal posi- 
tion, the joint-pin is then withdrawn, and the rope wound up till the folding 
part of the trough is upright, the rope then takes half a turn round the pulley 
B, and the upper trough passing between the fixed rods becomes suspended 
upon the rollers, C, and is gradually folded over as the rope is slackened from 
the drum. In folding up the trough, some weakness was observable at the 
joint, but the general construction of the machine is good, and it did its work 
fairly. It is furnished with a round hopper, and can deliver at any angle. 
The sides of the octagonal pullej-s which carry the endless chain jare shorter 
than those in the machines previously described, being only 5i inches long. 
No. 5049. Stephen Lewin. — This is adapted to work either by steam or horse 
power, and is precisely similar to the No. 5048 machine, which took a prize 
in Class V., and is there illustrated and described. 
No. 4848. Albert Watson. — This is a cheap machine of very simple construc- 
tion ; it has a square hopper, and can deliver straw in a straight line or at 
right angles. A [long and very light frame is carried upon four rather small 
cast-iron wheels. A pair of wooden shafts, 16 feet long, are fixed in a nearly 
vertical position above the two fore-wheels, and are capped by two pulleys, 
through which the chains for raising the trough are passed. A winch and 
pulleys in the middle of the frame wind up the chains ; the ends of these 
chains are attached to the trough at a short distance above the joint, and the 
weight of the top of the trough thus tends to keep the joint wide open, so 
that no joint-pins are required. In folding up the trough it is first lowered, 
and the slack chains are shifted to the end of the trough ; when they are again 
wound up, the upper half folds upon the lower, the upright shafts can then be 
taken down, and the machine is in a very compact form for putting away in a 
cart-shed. Sliort ropes for preventing the straw from blowing away are 
stretched over the upper part of the trough. The ladder-chains are light, 
and cogged chain-wheels take the place of tlie octagonal wheels that are more 
usually emploj'ed. The bottom of the trough is made of sheet-iron. The 
workmanship in this machine is rough, but the design is neat. The upright 
shafts need trussing, and means should be adopted to support the slack chains. 
No. 4978. Wallis and Steevens. — In this machine the trough is carried between 
two trussed and oblique wooden shafts, and it is raised and lowered by means of 
a rack and pinion. One-third of the length of the trough can be folded down, 
the head of the trough being thus brought just in front of the fore-wheels. It is 
raised by means of an automatic apparatus formed of three pairs of iron rods, of 
which one pair is fixed to the fore part of the carriage-frame, one to the oblique 
shafts, and one to the folding part of the trough ; when the trough has been 
raised for work, this apparatus is removed, and laid up on the frame of the 
elevator. The straw-hopper is square : the straw can be delivered at any angle, 
but the change from one angle to another is not accomplished with facility. 
No. 4982. Nalder and NaJder. — One of Andrews' Patent Straw-Elevators, 
manufactured by the exhibitors. In this form of elevator the trough folds 
over, and is raised and lowered by drawing the fore-wheels to or from the 
hind-wheels. This fonn, though not commended as an elevator to be worked 
with a threshing-machine, was shown of rather lighter construction in Class V., 
maniifactured by Messrs. Reeves. In that class it was highly commended, 
and will be found illustrated and described. 
No. 4998. W. Tasker and Sons. — A Patent Folding Balance Elevator, with 
more originality in its design than any other elevator ; it differs from all others 
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