720 
Report on the Exhibition of Implements, 
be adjusted to fulfil either of its threefold functions. The disc 
is skeleton in form — a ring with centre-bar and axle, and plates 
to fill it in. There are two pairs of plates — one with knives for 
cutting finger-pieces, replaceable in a few seconds by slicing- 
knives, and the other fitted with pulping-knives. The arrange- 
ment of the knives in the finger-piece cutting-disc is entirely 
novel, and is applied to a new single-action machine as well as 
in the combination I am describing, and which will be readily 
understood by the illustrations (Figs. 13 and 14). 
Fig. 13 (p. 719) shows the disc of the root-cutter on the old system, in 
which the cutting was commenced on the outside and finished at the centre 
of the disc. The knives thus placed had a tendency to drive the roots to the 
outside of the hopper. 
Fig. 14 shows the disc on the new system. Here the cutting commences on 
the outside and at the centre about the same time, and finishes about midway 
between the axis and the periphery of the disc. It will be seen that the clear 
spaces between the finishing of the cut and the commencement of the next cut 
is greater, giving the root more time to fall close to the disc, so that a full cut 
is made every time, instead of in some cases only a thin slice. 
Fig. 14. — Disc on the new system. 
