The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 163
e set fast by corrosion or become in-jured by frei|uent use. ind. When open it is part of the main orpipe, as shown in fig. 1, and presents the same uninterrupted pas- sage as the pipe itself, and as the means used for closing or stop-ping the circulation have no communication with the gas or… … Fig. 2. the elastic material of which the cock is composed never can be-come injured by pressure, as long as the metallic casing which sur-rounds the fie.xible tube remains perfect. SEPARATING IRON FROM ORE. Arthur Wall, of India-row, East India-road, Middlesex, for ■ a new or improved apjmratiix…
Architecture · Civil engineering · Science
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