Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 759
p r> When the quantity of gas made in twenty-four hours does not exceed 30,000 cubic feet, or when thequantity made is decreased 1200 cubic feet at a time, on the approach of summer, the ovens maycontain two retorts, as shown in Fig. 1900. The flues are arranged in a similar manner to those in…
Mechanical engineering
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