The Americana; a universal reference library, comprising the arts and sciences, literature, history, biography, geography, commerce, etc., of the world . oduced through apipe, E, entering one end of the meter case and compartments filled and emptied is the amountof gas that passes through the meter. This isregistered on a dial connected to the drumthrough an appropriate series of gear meter drum revolves because the gas en-tering is forced by the exhauster into the spacebetween the outer surface and the inclined sideof the compartment opening at the moment abovethe water. The point
The Americana; a universal reference library, comprising the arts and sciences, literature, history, biography, geography, commerce, etc., of the world . oduced through apipe, E, entering one end of the meter case and compartments filled and emptied is the amountof gas that passes through the meter. This isregistered on a dial connected to the drumthrough an appropriate series of gear meter drum revolves because the gas en-tering is forced by the exhauster into the spacebetween the outer surface and the inclined sideof the compartment opening at the moment abovethe water. The point of view of Figure 8 is the inletend of the meter. The drum revolves in thedirection of the arrows. Compartment D4, asshown, has its inlet submerged and its outletopen, and as the meter revolves the water entersthis compartment, expelling the gas, which flowsout of tlie drum and through the space betweenthe drum and the case to the meter outlet, Di is full of gas with both inletand outlet submerged, the outlet being about torise above the water. This will happen before D4is entirely emptied of gas. D2 is filling with gas. suroc rising to above the water line through a hood,F, covering the inlet end of the drum. Into thishood open the inlet ends of the compartmentsof the drum. As the drum revolves, the inletend of each compartment in turn rises above thewater and receives gas through the inlet pipeand hood. Because the other end of the com-partment receiving gas is below the surface ofthe water, no gas passes through, but all thatenters is retained in the compartment until itsinlet end is again sealed by passing into thewater. At that moment its outlet end risesabove the surface, and the water, entering theinlet end as the revolving drum carries the inletdown, forces the gas through the outlet end ofthe compartment. As one compartment empties,another is filling, and the flow through the meteris continuous, though intermittent as to anycompartment. The sum of
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectencyclo, bookyear1908
