. The American journal of science and arts. dditional apartment,since it constantly escaped at a much higher temperature than itcould be desirable to maintain in any part of a dwelling. To effect the proposed saving, it was only necessary to arrest thegas by a partition at the proper point, perforate the side of the chim- VoL. XXIII.—No 2. 42 330 Economy of Fuel. ney, and insert a pipe connected with a proper air chamber, or drum,of sheet iron through which the gas might be made to pass and againbe returned to the flue above the intercepting partition. The planactually adopted, as the most sim
. The American journal of science and arts. dditional apartment,since it constantly escaped at a much higher temperature than itcould be desirable to maintain in any part of a dwelling. To effect the proposed saving, it was only necessary to arrest thegas by a partition at the proper point, perforate the side of the chim- VoL. XXIII.—No 2. 42 330 Economy of Fuel. ney, and insert a pipe connected with a proper air chamber, or drum,of sheet iron through which the gas might be made to pass and againbe returned to the flue above the intercepting partition. The planactually adopted, as the most simple, was to cover the top of the fluefrom which the gas originally escaped, with a board laid in mortarover the top of the chimney, and when the hot air had traversed thedrum, to turn it into another flue which remained open at the top, butclosed at bottom, except a single aperture for the admission of a pipefrom the drum. The arrangement is seen in the accompanying fig-ure, where F is the flue coming from the basement; E is the six inch. pipe which receives the gas; D is the drum three feet and nineinches high by two feet in diameter, from which proceeds the pipee for the exit of the gas, into the chimney at P, through the brickwall with which the fire place has been closed. F is the fluethrough which the gas finally makes its escape into the open air; tis a thermometer with its bulb descending through a hole perforatedin the sheet iron, to the center of the pipe, and near where it comesout of the flue. This is intended lo mark the temperature of theentering gas. i is another thermometer similarly inserted into thepipe where it leaves the drum, and t^ is a third one, serving to notethe final temperature of the gas at its exit. The drum supports onits top a broad shallow dish containing water to be evaporated. Thethermometer which marked the temperature of the room stood with-in one foot of the upper end of the drum. The several thermome-ters represented, were designed not on
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Keywords: ., bo, bookcentury1800, bookpublishernewhavensconverse, bookyear1820
