Award of Medals, ^c, at Kilburn. 
697 
Fig. 2 (p. 695) gives a front view of tlie machine, sliowing driving pulleys, 
main shaft, gearing, &c. 
The main driving shaft carries the front masticating roller, 5 in. in diameter, 
which revolves 300 times per minute. The second roller is driven from the 
first by ordinary cog-wheel gearing. The speed of the knife shaft is reduced 
to 134 revolutions by gearing on the right-hand side by the fly-wheel. 
Fig. 3 (p. 696) shows the gearing on the opposite side to the fly-wheel. 
A small pinion reduces the speed of the bottom feed-roller to 2-1, which drives 
the top roller to the same speed. On the shaft of the lower roller is a gear- 
wheel, which actuates a second wheel, which drives the front masticator at 
22 revolutions per minute. 
Fig. 4 shows a section of the masticators. 
Fig. 4. — Section of the Masticators of McKenzie's Gorse Mill. 
The Judges organised a trial with 23 lbs. of very coarse 
strong gorse. The time occupied was 3^ minutes, the machine 
running at about 380 revolutions per minute, and driven by an 
8 H.-P. engine with 13 lbs. steam in the cylinder — actually 
about 2^ H.-P. employed. 6'60 lbs. of gorse was crushed per 
minute. I think that with more power a greater result could 
be obtained, and it is, I think, fair to assume that about 2 tons 
per day could be masticated. The work was done well, and 
there is little doubt that this machine will supply a great want 
where gorse is used as cattle food. The price of the machine 
tested, which has a 11-in. box, is 15/. 15s. 
