. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. manner to that commonly resorted to for obtaining hot blast in the manufacture of iron, which steam is conducted by a pipe into that part uf a gas retort most distant from where the gas passes oR" from the retort. The steam is generated under a pressure about that of the gas, and it flows into the retort freely at the com- mencement of gas making, after charging the retort, and it is stopped after the most matters iiave been driven oft'from
. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. manner to that commonly resorted to for obtaining hot blast in the manufacture of iron, which steam is conducted by a pipe into that part uf a gas retort most distant from where the gas passes oR" from the retort. The steam is generated under a pressure about that of the gas, and it flows into the retort freely at the com- mencement of gas making, after charging the retort, and it is stopped after the most matters iiave been driven oft'from the CO d or other matter used. The fourth part of the invention relates to improvements in Argand gas burners, by so arranging the gallery for carrying the cliimney for directing the air to the external of the. , that it may rise and fall, and be fixed at the required position by a screw or other means, and thus allow of a nice adjustment of the admission of air to the Hame. The fifth part cf the invention consists of treating blocks of dry peat in the same manner as that described under the first part of the invention for gas making. STEAM HAMMER. John Condie, of Glasgow, engineer, for "Improvements in machin' ery used in manufacturing malleable !>;—Granted Oct. 15, 1846 ; Enrolled Aprd 15, 1847. The improvements relate, first, to the arranging or constructing steam hammers, that the steam cylinders have the hammer faces ap- plied thereto and move therewith; and, secondly, to the introduction of malleable irou tubes into anvils and hammer and squeezer faces. Fig. 1 is a front elevation of the hammer and steam apparatus ;. fig. 2 a vertical section, taken at right angles to fig. 1; and fig. 3 a plan of the cylinder. The steam is admitted through the valve a and tube b, which encases the piston rod, into the steam cylinder c, and presses on the piston d (which is fixed) and the cylinder top, and raises the cylinder, which is made moveable, togeth
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