A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice. . are used, 4 ft. C 2 ft. 9 in., which areheated in large squareovens. With regard to therelative advantages ofcylindrical retorts orsquare boxes, it shouldbe remarked that thecylinders are moreadapted for the distilla-tion of the large billetsof Gloucestershire, andthe refuse ship timber ofGlasgow, Newcastle, andLiverpool ; but, on tlieother hand, where lightwood is used, such as that generally carbonized in the Welsh factories, the square ovensanswer bette
A supplement to Ures Dictionary of Arts, Manufactures, and Mines, : containing a clear exposition of their principles and practice. . are used, 4 ft. C 2 ft. 9 in., which areheated in large squareovens. With regard to therelative advantages ofcylindrical retorts orsquare boxes, it shouldbe remarked that thecylinders are moreadapted for the distilla-tion of the large billetsof Gloucestershire, andthe refuse ship timber ofGlasgow, Newcastle, andLiverpool ; but, on tlieother hand, where lightwood is used, such as that generally carbonized in the Welsh factories, the square ovensanswer better. The most recent and ingenious improvement in the manufacture of pyroligneous acid isthat patented by the late Mr. A. G. Halliday, of Manchester, and adopted by several largemanufacturers. The process consists in effecting the destructive distillation of waste mate-rials, such as saw-dust and spent dye-wood.«, by causing them to pass in continuous motionthrough heated retorts. For this purpose the materials, which are almost in a state ofpowder, are introduced into a hopper, h {fg. 8), whence they descend into the retort, b,supplementtoures00hunt. 13
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Keywords: ., bookcentury1800, bookdecade1860, bookpublishernewyo, bookyear1864
