The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 384
Fig. I is athe pipe; fig w of one of thof cover; fig. e cocks; fi4, a transv . 2, plan aerse view; hoveand the level offig. 5, asec- lioual elevalion of n cock fully open,—the dotted lines show the positionof the valve wheu closed. … Fig- ■•. Fig, 5. Mr. Nasmyth claims as new—1st. The valves being formed with doublefaces ; 2ndly. The screw passing down through the valve ; and 3rdly. Thecasting of the cock in one piece. (To Messrs. Nasmyth, Gaskell, and Co.)Gentlemen,—I have great pleasure in complying with your request, togive…
Architecture · Civil engineering · Science
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