Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 202
rough an arc of acircle so as to bring its opening at one time in front of the source of heat, and at another to tiltout the finished ball. The centre of motion is shown in the drawing as situated a little above thebottom of the pan, and the weight of the trunnion frame is adjusted so as to balance… … 192 IRON-MAKING PROCESSES—PUDDLING. bustion escape concentrically outsidethe tuyere and inside the edge of thepan. The gas enters from the maininto an annular space just above thetuyere, and the air is forced througha nozzle placed centrally, and perfo-rated with holes. This arrangementis capable…
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