Report on the Trials of Implements at Cardiff. 425 
Offered by the Society; they have long been noted for the excellent con- 
struction of their machines, and have recently introduced the trussed frame, a 
diagram of which is shown in Fig. 9. 
Fig. 9. — Exterior view of Messrs. Clayton and ShuttlewortVs Threshing- 
Machine. No. 4943. 
By this arrangement the side frame forms' a very deep -girder, taking its 
bearings directly upon the axles. The rigidity of the frame is a point of great 
importance, since it forms the foundation for all the moving parts of the 
machine. 
The chaff was well bagged ; and the feeding was done with admirable 
skill and judgment, the sheaves having been well spread, and delivered with 
great regularity. 
5014. Ruston and Proctor. — Four belts on the left side, one of them from the 
drum-shaft, in the same direction as the engine-bell ; four belts on the right side. 
This machine resembles Clayton's in having its frame well trussed. The truss 
iu this case is of flattened half-round iron, in a A shape ; the bases of the A are 
placed above the axles of the fore and hind wheels. The strength of this frame 
has been tested by a weight of 12 tons placed upon it without producing deflec- 
tion. It resembles Marshall's machine in having the corn-elevator within the 
frame, and in having both the fans placed beneath the frame, the second blast 
being carried along an air chamber to the second winnowing-sieves, and thence 
under the drum. The chaff is bagged, and is raised above the chaff-spouts by 
an elevator similar in construction to Underbill's well-known corn-elevator. 
The frame of the second sieve-box is moved from the riddle crank-shaft by 
two connecting-rods and a lever placed at the back, and outside the main frame. 
The caving-riddle, as usual, is of mahogany ; the holes are countersunk from 
the upper side, making them larger at the top than the bottom. 
4980. Nalder and Nalder. — Three belts on the left, only one of them from 
the drum-shaft, and that one draws in the opposite direction to the engine-belt ; 
three belts on the right, two of them from the drum-shaft, but on opposite sides 
of it. One of these straps passes round three pulleys on the shafts of the drum, 
hummeller, andupper fan respectively. The shog-board crank-sliaft is not driven 
by a belt from the drum-shaft, but by one from the straw shaker-shaft. Chatf 
is not bagged, but is delivered on to the ground just behind the hind wheels, a 
board being used to keep it clear of the corn-sacks. Instead of the usual 
