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When the metal level is sufficiently high, the cupola tender opens the "tap hole" to let the metal flow into a ladle or other container to hold the molten metal. When enough metal is drawn off the "tap hole" is plugged with a refractory plug made of clay. [8] The cupola tender observes the furnace through the sight glass or peep hole in the ...
Protective elements for bronze fountains are particularly important, since water is one of the leading causes for alterations or corrosion in a bronze. [2] Bronze sculptures incorporated in fountains will need more layers of wax, because the spray of water will cause deterioration of the wax at a faster pace than would normally happen.
The center metal is often copper; its role is to act as a carrier for the alloy, to absorb mechanical stresses due to e.g. differential thermal expansion of dissimilar materials (e.g. a carbide tip and a steel holder), and to act as a diffusion barrier (e.g. to stop diffusion of aluminum from aluminum bronze to steel when brazing these two).
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Martha Bradley (fl. 1740s–1755) was a British cookery book writer.Little is known about her life, except that she published the cookery book The British Housewife (pictured) in 1756 and worked as a cook for more than 30 years in the fashionable spa town of Bath, Somerset.
Ondol (ON-dol; / ˈ ɒ n. d ɒ l /, [1] Korean: 온돌; Hanja: 溫突/溫堗; Korean pronunciation:) or gudeul (구들; ) in Korean traditional architecture is underfloor heating that uses direct heat transfer from wood smoke to heat the underside of a thick masonry floor. In modern usage, it refers to any type of underfloor heating, or to a ...
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This consists of two contributing buildings and one contributing structure that are associated with a former iron furnace. They are the ironmaster's mansion, furnace stack, and a log workers' house. The ironmaster's mansion, which was built during the 1830s, is a two-and-one-half-story stone house that was designed in the Georgian style.