Cotton weaving: its development, principles, and practice . CONSTRUCTION OF A WEAVING ESTABLISHMENT. 369 to it which its importance deserves, and which in the wayof economy it will well reward. This neglect, however,seems likely soon to be remedied, as its turn for attentionis beginning to be recognized. It has been seen that thewasted heat ought to be utilized, and attention is beingclosely directed to the accomplishment of this end. Onemethod of doing this is illustrated in fig. 187, whichshows an improvement in the construction of the furnace. Fig. 187.—Improved Boiler Flue. flue. The inven
Cotton weaving: its development, principles, and practice . CONSTRUCTION OF A WEAVING ESTABLISHMENT. 369 to it which its importance deserves, and which in the wayof economy it will well reward. This neglect, however,seems likely soon to be remedied, as its turn for attentionis beginning to be recognized. It has been seen that thewasted heat ought to be utilized, and attention is beingclosely directed to the accomplishment of this end. Onemethod of doing this is illustrated in fig. 187, whichshows an improvement in the construction of the furnace. Fig. 187.—Improved Boiler Flue. flue. The inventor recognizes that the air and gasesdeveloped in the boiler furnaces are heated to a tempera-ture of from 1,700 to 2,000° F. This of course wouldfuse the entire furnnce and its surroundings, were it notconducted to the water contained in the boiler, or allowedto escape into the air. Its escape into the air is notdesirable; its absorption by the water is. It is unneces-sary to do more than remark that water vapourizes andpasses off in steam at 212° F. This occurs with the waterin contact with the external surfaces of the furnace flues, PB 370 COTTON WEAVING. water of a lower temperature taking its place until itattains the same degree of heat, when it passes away in asimilar manner. The whole volume of water the boilercontains thus becomes heated to the same degree, and thecirculation goes on, the vapourized water passing into thesteam space of the boiler, where it is stored until requiredby the engine. The point to be observed here i
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