658 Report on the Trials of Implements at Taunton. 
axles ; x, the hood, encompassing about one-quarter of the circumference (| 
the path of the revolving forks, and closed on the top and both sides. B 
using this hood, in place of a wire screen, the machine is more compact, an 
the horse is about three feet nearer to his work. The machine is adjustabl 
either higher or lower — to suit various crops — as follows : in the ends of th 
draught-shafts are two holes, with studs or pins, which studs are firmly fixe 
to the side-irons, p, the shafts being moveable on these studs ; the side-iroDi 
are prolonged to form quadrants, with notches for the reception of a bol'| 
which passes through the centre of the shafts at a distance from the studs t 
suit the radius of the quadrants. This bolt is made to slide in gear wit 
these notches. 
In Fig. 32, F is a cogged wheel, fixed on the nave of the travelling-wheel D, re- 
volving with it ; a and H are pinions cast together, having a slidijig motion ou a 
fast key, k, on the end of the barrel l; carrying the fork- bars R with the teeth, 
This barrel revolves on the main axle, and is put in motion by a lever for the 
three actions. When it is required to put the machine out of gear, the sliding 
pinion is withdrawn from the sliding cog-wheel, and becomes idle. The 
sliding pinion has a groove, i, turned on it for the reception of the fork j, which 
is moved by a jointed lever working on a fixed centre-pin. One end of the 
lever engages the fork, the other end has a jointed handle, working round a 
quadrant, having three notches, representing the three actions of the machine, 
viz., forward, out of gear, and backward, or reverse action, in such a way that 
when the lever is put opposite the required notch, the handle is turned down 
and locks itself. The backward or reverse action is obtained from another 
«louble pinion, n n and mm, working on a hollow bolt. One of the cog-wheelBi 
