g the fire. strength and substantial construction of apparatus, render- where they remain for ten minutes under the spell of an- ‘‘ A six inch oil pipe seventy-five feet high stands a short ing it very durable. other intense heat. After this reheating they are taken to distance away. This is sealed… … successful operation in the North Staffordshire coal field. There is also an overflow pipe attached, ‘by means of which weigh between 175 and 200 Ib. apiece, their market value One view represents the tipping machine at rest, and in the the large pipe is relieved when full, the oil returning to a…
Internet Archive · Public domain (published before 1931). Free to use for anything.
