Appleton's dictionary of machines, mechanics, engine-work, and engineering . s three tuyeres, whichis an establishment for a furnace of the largest class; yet very many have but two, and smaller onesare worked with but one tuyere. Fig. 2348 gives an enlarged view of the disposition of the hearth and boshes. Here, besides the partsalready indicated by letters before used, s shows one of the cast-iron girders, or sows, for supporting thethrust of the arch; y is the tymp-stone, protected by a casting called the tymp-plate, (tymp, in Welch,means a delivery, and hence is applied to the place where
Appleton's dictionary of machines, mechanics, engine-work, and engineering . s three tuyeres, whichis an establishment for a furnace of the largest class; yet very many have but two, and smaller onesare worked with but one tuyere. Fig. 2348 gives an enlarged view of the disposition of the hearth and boshes. Here, besides the partsalready indicated by letters before used, s shows one of the cast-iron girders, or sows, for supporting thethrust of the arch; y is the tymp-stone, protected by a casting called the tymp-plate, (tymp, in Welch,means a delivery, and hence is applied to the place where the product of the furnace is brought forth,)both from the iron ringards, or long crow-bars, of the workmen, and from the adhesion of the cinder,which is very strong to heated stone ; and d is the dam-stone, protected, for similar reasons, by a castingcalled the dam-plate ; h shows here the hearthstone, or sole, which is a single, large, refractory stone,and ought to underlie, in part, the dam-stone. This hearth-stone ought to have a fall of at least J inch IRON. 87
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Keywords: ., bookcentury1800, booksubjectmechanicalengineering, bookyear1861
