" 430 Report on the Trials of Implements at Cardiff. 
The small belt from the fan-shaft drives a pinion, which works into a spur- 
wheel on the frame of the rotary screen. In the fore-carriage, we may notice 
Fig. 12. — Vieio of the riqlit-hand side of Messrs. Bansomes, Sims, and 
Head's Threshing Machine. No. 4658. 
tlie ball-and-socket joint in the locking £;ear, which enables the wheels to adapt 
themselves to the inequalities of roads when travelling, and causes the 
machine to stand steady on uneven ground. 
Several novelties have recently been introduced into this machine, after 
having been patented by their inventor, Mr. Brinsmead. Of these we take 
first the hexagonal drum, of which a section (I.), and a plan of part of its 
periphery (II.) are shown in Fig. 13. 
Fig. 13. — Section (I,) and Plan of part of Periphery (II.) o/ Brinsmead's 
Patent Hexagonal Drum, 
c c 
I. II. 
