This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1900 Excerpt: ... 177 and 178) acts by means of a compensating float A, upon which is carried:1 valve B. The float is of semicylindrical form, turning on a horizontal axis X, which is mounted at or near the level of the liquid in the meter. The weight of the float is so adjusted that when it is in its highest position, with its flat ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1900 Excerpt: ... 177 and 178) acts by means of a compensating float A, upon which is carried:1 valve B. The float is of semicylindrical form, turning on a horizontal axis X, which is mounted at or near the level of the liquid in the meter. The weight of the float is so adjusted that when it is in its highest position, with its flat side or diameter horizontal, it will balance itself on the axis, and when the diameter is vertical one half will be immersed and will support the other half. As the water evaporates so the float descends, displacing a sufiicient quantity of water to maintain a constant water level. Upon attaining its lowest position the valve B comes into contact with the valve seat C, and closes the passage of the gas. Clegg's Hydraulic lete'r.--Clegg, the inventor of the wet gas-meter, patented, in 1858, a new hydraulic meter. The measuring drum was divided into five compartments, and in the centre of it was placed an air Vessel by which it was balanced in the water at a constant level, and rose or fell according to the quantity of water in tlie meter." Warmr and Cowana' 1leter.---In Warner and Cowans' meter the drum A (Figs. 179 and 180) is similar to that of an ordinary meter, but I92 WARNER AND COWANS' METER.' within it is placed a smaller drum B, of similar construction, only witha reverse action, so that it takes its supply from the filled compartments of the larger drum, thus returning gas to the inlet. Both drums being equally ' HUNT'S conrsmsnme nsrsa. 193 affected by alteration of water level, the one acts as a compensator to the other, any increase or diminution of measuring capacity of the larger drum being compensated for by a corresponding diminution or increase of that of the smaller drum. Jead'a Meter.--...
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