The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 403
er circle of the drum of a water-meter water-tight, thatbeing in water it may be buoyant, and prevent the weiglit of thedrum from pressing upon the axis. The principle on which thefirst part of this invention depends, is the well known law, thatthe discharges of the same Huid through diiferent… … The drum, revolving upon an axis in water, is divided into com-partments so arranged that, as the gas enters, it sliall in succes-sion fill all the chambers, and be discharged measured. The innercircle c, c, of the drum is made water-tight, so that when themeter is filled to a certain level with…
Architecture · Civil engineering · Science
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