. De re metallica. Metallurgy; Mineral industries. BOOK XI. 527 and hold it, lest it should fall out of the beam ; that end is hardly a digit thick, while the other round end is thicker than a digit. When the door is to be shut, this pin lies under the timber and holds the door so that it cannot fall; the pin Ukewise prevents the rectangular iron band which encircles the end of the beam, and into which is inserted the ring of a long hook, from falling from the end. The lowest hnk of an iron chain, which is six feet long, is inserted in the ring of a staple driven into the right wall of the fur
. De re metallica. Metallurgy; Mineral industries. BOOK XI. 527 and hold it, lest it should fall out of the beam ; that end is hardly a digit thick, while the other round end is thicker than a digit. When the door is to be shut, this pin lies under the timber and holds the door so that it cannot fall; the pin Ukewise prevents the rectangular iron band which encircles the end of the beam, and into which is inserted the ring of a long hook, from falling from the end. The lowest hnk of an iron chain, which is six feet long, is inserted in the ring of a staple driven into the right wall of the furnace, and fixed firmly by fiUing in with molten lead. The hook suspended at the top from the ring should be inserted in one of these lower links, when the door is to be raised ; when the door is to be let down, the hook is taken out of that link and put into one of the upper links. On the third day the master sets about the principal operation. First he throws a basketful of charcoals on to the ground in front of the hearth, and kindles them by adding live coals, and having throvim live coals on to the cakes placed within, he spreads them, equally all over with an iron shovel. The blade of the shovel is three palms and a digit long, and three palms wide ; its iron handle is two palms long, and the wooden one ten feet long, so that it can reach to the rear wall of the furnace. The exhausted Uquation cakes become incandescent in an hour and a half, if the copper was good and A—The door let down. B—Bar. C—Exhausted liquation cakes. D—Bricks. E— Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Agricola, Georg, 1494-1555; Hoover, Herbert, 1874-1964. New York, Dover Publications
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