Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 837
ig row. These pots are about 4I ft. in diameter, and the same indepth. Each is provided with a stirrer, which is made to revolve by abevil-wheel, f, on its spindle, working with a pinion on a shaft, b, driven by asteam engine. A layer of water is kept on the tops of the lids, the waterbeing… … Fig. 354.—Section of Apparatus for making Nitro-Bensol. vapour, which would otherwise escape with the nitrous fumes that pass offby the pipe, a. There is at e an opening, through which the material maybe introduced, and in the bottom of the vessel is an aperture through whichthe products may be…
Inventions
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