Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 197
es into theflame between the front of the furnace and the fire-brick lined lip O.2, Fig. j, secured to the furnace. Bothedges are thus simultaneously heated to the welding point,and are hammer welded as they emerge from the furnace.The hammer mechanism is not shown upon the drawings ;but it… … Fig. 2. halves and bored out to fit the tube. This is expected toguide the metal, and keep the pipe of a uniform diameter. This machine was never successful, and among itsdefects may be mentioned the following : (i) The general designs and peculiar motions did notpermit of making the parts strong…
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