. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. 1839.] THE CIVIL ENGINEER AND ARCHITECT'S JOURNAL. <)31 waste of fuel csues, the flame being tlien apt to divide itself into two cur- rents, one on cacti side of the hoiler, and tlius rnn ott' to tlie cliinincy witli- out taliing much effect upon the boiler bottom ; others again have gone into the other extreme, and built a continued inverted arch from the tire bridge to the end of the boiler, which we need hardly observe, hurries the heated gases too rapidly off to the ch
. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. 1839.] THE CIVIL ENGINEER AND ARCHITECT'S JOURNAL. <)31 waste of fuel csues, the flame being tlien apt to divide itself into two cur- rents, one on cacti side of the hoiler, and tlius rnn ott' to tlie cliinincy witli- out taliing much effect upon the boiler bottom ; others again have gone into the other extreme, and built a continued inverted arch from the tire bridge to the end of the boiler, which we need hardly observe, hurries the heated gases too rapidly off to the chimney. Fig. Dimetisions of Boiler :— Diameto ^5 ^!1* al'l"!!!'} outside. One-half of the convex surface was w'holly exposed to the dii'^ct action of the flame and hot air, except about 4 inches in depth all round along each side and across the ends, amounting to abo>it 1 square yard. The quantity of water worked with was 15 cubic yards, which was kept uniformly supplied by means of the ordinary feed pipe and float; the temperatm'c of the feed water being the same as that of the atmosphere. Dirnetmioiin of Fire Grate:— Brefdft 5 -^ 6 '— } '^''="'' ^''""" *'"= '^'=='""S '«^^. '-""l ^"W" t'>^ side walls of the furnace. Fire bars in one length. If inch thick, -f^ inch between each, and set sloping, or declining towards the bridge, so as to be 2 feet 8 inches from the boiler bottom at the back and 1 foot 11 inches at the front end of the grate. The boiler was made by Mr. Falibairn, of Manchester, with the best Low Moor iron -,% thick. It supphed steam to a IC-horse engine, loaded so as to require never l;ss than 24 cubic feet of water evaporated per hour, also steam for heating drjing cyUuders, hoiling water, and a variety of other purposes, amounting at times to nearly as much as the engine required itself. The chapters upon the " Deposit of Sediment Incrustations," and "Causes of Explosions
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