Machinery and processes of the industrial arts, and apparatus of the exact sciences (1869)
Barnard, Frederick A. P. (Frederick Augustus Porter), 1809-1889 · Washington, Govt. print. off. · leaf 247
cal form andis contained in a cylindricalchamber attached to andcommunicating with themeter. The semi-cylinderturns freely on a centralaxis, which coincides in po- Constant Level Meter. sitlOU with the SUltaCC of the invariable water level. The annexed figure illustrates the con-struction and… … CONSTANT LEVEL GAS METER. the under side of the wedge, just at the water level. When there is nowater at all in the meter, or very little, the float occupies naturally, bygravity, the lower half of the chamber ; but it carries on its plane sideat the extremity which is thus brought immediately…
Machinery · Scientific apparatus and instruments
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