The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 214
Fig. 4.—Plug, ivlth Slandcock. Fig. 5 is a common single firecock with a round water-way 2J inchesdiameter. * Tile canvas dam is the Invention of Mr. Ilradlcy, for whlcb b wM aWBrded by theSociety of Am with a silver medal,—Ed, C.,E, f( A, Journal, … 1 .^. .\-Siiit;lt Fire-cock. Fig. G is a double firecock, as laid down in Her Majestys Dock-yards.
Architecture · Civil engineering · Science
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