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Scientific American, Vol. 41, No. 9 (1879) (1879)
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i hero TI 1 LD expan ee) ! IZ LY lim Ait Bgeeeey per Annum. NEW YORK, AUGUST 30, 1879. Vol. XLI.—No. sel (POSTAGE PREPAID. | NEW SERIEs.] to & inch wrought iron plates, and is mounted on trunnions, BESSEMER STEEL, … The process of decarburizing iron requires about twenty high. They are made of a refractory material, the walls be- ing about 1 foot thick. ~The exterior iron shell is made of 14 [Continued on page 137.] i i i VA all a? © 1879 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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