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| - At H is shown a creosote-tank connected with the cylinder A by the pipes I J, the latter being provided with a pump, K At the bottom of the tank is a pipe, L, provided with a stop-cock, and at the top is another pipe, M,havi ng a pump, N, whose use is to exhaust the air and moisture from the cylinder A. The cylinder is provided with a door or head, 0, at each end, which is preferably connected to
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