150
RETORT-HOUSES.
Dr.
S.
d.
To coals, 18s. per ton (producing 9200 cubic feet per ton)
l
11-45
„ fuel (30 per cent, of coke produced, @ 15s. per chaldron)
0
5-85
„ labour .........
0
4'75
,, wear and tear of retorts ......
0
3-25
,, lime ..........
0
0-50
„ wear and tear of works and mains ....
0
3-50
3
5-30
Cr.
s.
d.
By coke sold, @ 15s. per chaldron .....
0
977
„ breeze, tar, etc. .......
0
1-00
0
10-77
2
6-53
To this must be added the cost of distribution and the
loss
by
leakage, say ........
.
0
600
3 053
Fig. 45.
vmttlalor
coal store
In the next example (Fig. 45) advantage was taken of sloping ground to form a coke-shed, which saved a considerable quantity of brickwork. The charge, as it was drawn,fell through the space in front of the retorts, and down an inclined plane into the shedbehind.
This house was considerably larger than that described in the last example, being capable