Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 755
this construction have been worked, and are found to act well, producing gas of averagequality and in greater abundance than bv the ordinary method. The reason of the gas being only ol 752 GAS. an average quality is, that the carburetted hydrogen made after the production of bituminous vapor… … If, instead of having only two retorts in a set, the number could be increased to six, and after thefirst hour the gas be allowed to pass away on the ordinary plan, both the quantity would be augmentedand the quality improved. Revolving web retort.—This retort is arranged so that the coal is acted…
Mechanical engineering · Mechanics · Engineering
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