Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts . y mass into the main body, and then stops the furnace to arrange the iron readyfor balling. The mass is next thoroughly heated for about three minutes; then, slowly rotating thefurnace, the puddler by the aid of his tools folds the mass over itself, and it is rolled together in aspongy porous ball, the movable head-piece being pushed to one side, the ball is then removedfrom the furnace by means of a large fork suspended from a crane, and carried to the squeezer. The following commerci
Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts . y mass into the main body, and then stops the furnace to arrange the iron readyfor balling. The mass is next thoroughly heated for about three minutes; then, slowly rotating thefurnace, the puddler by the aid of his tools folds the mass over itself, and it is rolled together in aspongy porous ball, the movable head-piece being pushed to one side, the ball is then removedfrom the furnace by means of a large fork suspended from a crane, and carried to the squeezer. The following commercial details of working of the Danks furnace for two months in 1877 aregiven in a paper by Mr. John I. Williams, superintendent of the Millvale Works of Missis. Graff,Bennett & Co., to whom is due the credit of having first made the Danks furnace a practical these furnaces the iron is melted in the revolving chamber. Actual number of days worked 37 Number of heats made with nine furnaces, single turn 1,941 Amount of metal charged, lbs 1,740,000 Amount of muck-bar and croppings, lbs 1,093,010. FLOOR LINE Total loss, lbs Percentage of loss, 53, The amount of coal used for the above, including lighting, keeping up, melting fettling or fix,and all other requirements, was 3,065 lbs, per ton of 2,240 lbs. of muck-bar. The amount of orerequired for fixing was lbs., of scrap lbs., and of scale 55 lbs. per ton of 2,240 lbs.(Metallurgical Review, September, 1877.) The following details of the working of the improved Danks furnaces at Creusot are given by L. Holley: The two Creusot furnaces now make each a ton at a heat, and 20 heats per 24 hoursfor 0 days, or 12 turns per week. The crude iron is somewhat desiliconized in the premelting open-hearth furnace, and is for this reason easily puddled in half an hour. All the fettling (ore, scale,and a little scrap) is put in cold. The results of one furnace for the first six months of 1878 are asfollows: Numb
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