----------------+-----------------+----------+--------------+--------- Industry. |Material Treated.| Quantity.|Oil Recovered.|Per Cent. ----------------+-----------------+----------+--------------+--------- | | | Pints. | Agricultural | Cotton-waste | 18 lb. | 9·75 | 54·16 machinery | | | | Biscuit | Cotton-waste[1] | 10 lb. | 4 | 40 manufacture | | | | Colliery |{Cotton-waste[2] | 39·75 lb.| 63 | 158·69 |{Cotton-waste[3] | 15·75 lb.| 10 | 57·5 | | | | Cycle and parts |{Rags |112 lb. | 80 | 71·42 |{Sponge cloths | 1 gross | 8 | -- Foundry | Cotton-waste | 13 lb. | 11·25 | 86·53 Machine-tool | Cotton-waste | 8·25 lb.| 2·75 | 33·33 manufacture | | | | Motor-car |{Cotton-waste | 16 lb. | 1·25 | 7·81 |{Rags | 12 lb. | 2·75 | 22·91 | | | | Railway |{Cotton-waste | 14 lb. | 2·625 | 13·75 |{Cotton-waste[4] | 10 lb. | 13 | 130 | | | | Steel and |{Cotton-waste | 8·25 lb.| 9·25 | 112·12 iron-works | | | | |{Mutton cloths | 2 lb. | 1·5 | 75 Tramway | Cotton-waste | 13 lb. | 1·25 | 9·61 Wood screw | Cotton-waste | 21 lb. | 13·75 | 65·47 manufacture | | | | ----------------+-----------------+----------+--------------+--------- But so far as industrial operations are concerned oil reclamation is by no means confined to the treatment of the waste and cloths. As already mentioned, oil is freely used in working metal, acting as the lubricant to the cutting tool. While trough facilities are provided to catch the oil to enable it to be used again, much clings to the turnings and other refuse. Even where works are not equipped with oil-recovery apparatus of some description or another an attempt to secure a proportion of what would otherwise be lost is made. The turnings are permitted to drain. The quantity of oil recovered in this manner, however, is very low. Certainly it does not exceed 40 per cent., because the oil clings somewhat readily and freely to the metallic surface.