The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 120
truction of the old meter, would escape when the plug was removed.Provided too much water be collected, it would prevent the influx of anvgas, consequently it must he at once detected; the consumer would thenhave only to unscrew the plug E, and allow the water to run off, which may1 e done without…
Architecture · Civil engineering · Science
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