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 305
such as is represented above, the coarse coal forms the skeleton of the heap inside, and atdistances of 8 or 12 feet, a kind of chimney is constructed with it. If coal coarse enough for thepurpose cannot he had, a flue is constructed of loose fire-brick on the floor, over the whole length ;… … with it, and likewise the chimneys which are constructed of sticks. The best plan, generally, is to formair-channels through the bottom and also the flues or chimneys, of coarse well-chaired coke; these donot swell; they hold good fire, and cause no loss—for what is burned in one kind of coal is…
Mechanical engineering
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