600 Report of the Trials of Ploughs, Harrows, &j-c., at Hull. 
same as in Corbett's implement, viz., the lever handle acts upon the front 
wheels at the same time that it alters the position of the crank axle of the 
hind wheels. 
A stud or pin in the front wheel arm holds the end of the first lever, whose 
fulcrum is shown at a ; the second lever passes through a strong central 
bracket, or standard, its fulcrum being the point of attachment at b, the 
hinder portion of the bracket being pierced with pin-holes allows of the lever 
being held in place when raised out of work, and a spring, c, in the lever 
handle locks the lever in work. It will be ^cn by the drawing, which repre- 
Fig. 107. — Illustrating the leverage in Mr. W. Runt's Cultivator, 
No. 1636. 
sents the cultivator at work, that the lever arm of the second lever is raised 
when the frame has to be taken up, and the arm of the first lever is similarly 
depressed. The power required is very small, owing to the mechanical 
advantage of the leverage. 
This implement carries seven tines, capable of being fitted with different 
shaped shares, according as the object is cultivating or broad- 
Fig. 108. sharing. The form of share iised during trial combined both 
the point and the wing, and represents one of the most useful 
of the series (see Fig. 108). The frame, which is of wrought 
iron, is intersected with strong angular braces, and the slots for 
the insertion of the tines are solid and strong. 
Murray and Co. No. 3511. — This cultivator has a construc- 
tion totally different from that of the one exhibited in the 
lighter class; the frame, composed of curved iron bars, is not 
adjustable, but very strong and rigid, both on account of the 
strength of material used and the way in which it is braced. 
The radial breasts are employed, but the arrangement is different ; instead of 
following one another, and all being twisted in the same direction, we have one 
central breast — two in front and two behind, and these pairs are twisted in 
opposite directions, and thus throw up the land in small ridges. The Judges 
were much jileased with the nature of the work, and considered it would be of 
essential use on strong land. 
Fig. ]09 shows a plan of this cultivator, not drawn to scale or absolutely 
accurate, but sufficiently so to give an idea of the construction of the imple- 
ment. Tlie five radial breasts are shown in about the positions they would 
occupy. Tlie leverage for turning at the land's-end is not shown, but can 
readily be understood as acting on the crank arms of the travelling wheels. 
Price, 121. 12s. 
