The hand-book of household scienceA popular account of heat, light, air, aliment, and cleansing, in their scientific principles and domestic . x-hibits the meter as if seen endwise, withthe ends of the drums removed. A A A Ais the outer cylinder; B B B B the fourcompartments of the inner one; c is thegaspipe supplying one of the it enters the partition E rises, and thewater passes out at the slit Z), into thespace between the two cylinders. The in-ternal one revolves from left to right, thegas passing in the direction of the arrows, 6rst displacing the water and fil
The hand-book of household scienceA popular account of heat, light, air, aliment, and cleansing, in their scientific principles and domestic . x-hibits the meter as if seen endwise, withthe ends of the drums removed. A A A Ais the outer cylinder; B B B B the fourcompartments of the inner one; c is thegaspipe supplying one of the it enters the partition E rises, and thewater passes out at the slit Z), into thespace between the two cylinders. The in-ternal one revolves from left to right, thegas passing in the direction of the arrows, 6rst displacing the water and filling the compartments, and thenpassing out into the space between the two drums, where it is con-veyed away by a tube not shown in the figure. The revolving drumis connected with clockwork, which shows by an index the numberof revolutions made, and the capacity of the compartments beingknown, the quantity of gas which passes through is correctly deter-mined. The meter reports the amount of gas that actually passesthrough it; but its indications are by no means to be taken as infalli-Dle proofs of honesty on the part of the gas company. Their tempta-6. L Meter for measuring the flow ofGas. 122 PEODUCTnONS OF ARTIFICIAL LIGHT. tion is, to put on pressure and crowd more gas through than is neces*sary, or than can bo burned with economy, for increased consumptionof gas does not at all involve a corresponding increase of light (222).Nor do meters aflford any indication whatever in reference to thequality of the gas ; the companies control this, and may do quite asthey please, the customer being unprotected. We do not intimate,however, that the gas-companies ever yield to the evil temptationswith which they are beset. 222. How Gas Is burned.—From the fountain of distribution—thegasometer—the gas flows away through the branching system of tubesunder the influence of pressure. When little openings are made inthe pipes, this pressure drives out the gas in jets or streams, and it i
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectfood, booksubjecthome
