A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice. . these gases, technically called water-gas, into the retort in which the illuminating gasesaio being generated, and in such a manner that these latter gases shall be swept out of theretort as rapidly as possible, so as to remove them from the destructive influence of a hightemperature. The retorts used for the hydrocarbon-gas process may be of various shapes and settings are similar to those for the ordinary retorts, and any number which is neces-sary m


A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice. . these gases, technically called water-gas, into the retort in which the illuminating gasesaio being generated, and in such a manner that these latter gases shall be swept out of theretort as rapidly as possible, so as to remove them from the destructive influence of a hightemperature. The retorts used for the hydrocarbon-gas process may be of various shapes and settings are similar to those for the ordinary retorts, and any number which is neces-sary may be placed in an oven. They difler only from the ordinary retorts by having ahorizontal partition, or diaphragm, cast in the centre, dividing the retort into two cham-bers, and extending to within 12 inches of the back. This diaphragm is found in practiceto strengthen the sides of tlie retorts, and thus to add to their durability. The water-gasretorts may be cast from the same pattern as the caunel retorts, and may be set in exactlythe same manner. Figs. 193a and 194 represent a setting of two retorts in one oven, and 193a ^. show the same in elevation, transverse section, and longitudinal section. The retorts hereshown have an internal cubical capacity of about 16 feet, and the bed of two is capable ofproducing about 10,000 cubic feet per diem of hydrocarbon gas. The temperature at whichthe retorts are worked is about the average. The water-gas is generated in the retort a inthe following manner:—The upper and lower chambers are well filled with coke or char-coal, and a very fine stream, or rapid drops, of water flowing from the tap enters the upperchamber through the siphon pipe, falling into a small steam-generating tube, which is placedinside to receive it, and instantly converts it into steam. The steam, in passing backwardsalong the upper chamber, and forwards along the lower one, becomes to a great extent de-composed into hydrogen, carbonic , and carbonic acid


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Keywords: ., bookcentury1800, bookdecade1860, bookpublishernewyo, bookyear1864