Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 401
ion. 1622. GAS PRESSURE REGULATOR, Powers patent. The small annular recepticlearound the end of the inlet pipe E is partly filledwith mercury, over which the inverted cup valveis suspended to a lever, the other end of w^hich isattached to a larger inverted cup sealed in anannular trough of mercury.…
Mechanical movements
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