Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts . 9 726 The iron obtained was said to be superior to that obtained from an ordinary puddling furnace, andthe waste of iron was much less. The cost prices taken from the books showed a difference in favor ofthe Pernot furnace as compared with the old system of about 40 francs per ton of 1,000 furnace has been quite extensively adopted on the continent ofEurope. (Journal of the Iron and Steel Institute., i., 1874, p. 143;i., 1876, p. 265.) Girdlow^s Oscillating Puddling Fur
Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts . 9 726 The iron obtained was said to be superior to that obtained from an ordinary puddling furnace, andthe waste of iron was much less. The cost prices taken from the books showed a difference in favor ofthe Pernot furnace as compared with the old system of about 40 francs per ton of 1,000 furnace has been quite extensively adopted on the continent ofEurope. (Journal of the Iron and Steel Institute., i., 1874, p. 143;i., 1876, p. 265.) Girdlow^s Oscillating Puddling Furnace.—This furnace, recentlyinvented in England by Mr. Thomas Girdlow, is shown in Fig. is thus described by the inventor: It consists essentially of a reverberatory furnace differing but lit-tle in construction fromthe furnaces in generaluse, the essential featureof novelty being that thefurnace is mounted on anaxis and is free to rockor oscillate. The rock-ing or oscillating motionis given by a small en-gine, and a neck with acurved end is providedto keep up an open com-munication between the. furnace and the chimney or flue during the oscillation, so that the products of combustion may be freeto escape. The figure shows a side elevation, with section partly marked. The body of the furnaceis supported so as to be free to rock on the bearings B ; C is the curved neck, which fits against thechimney D ; Fis the gearing by which motion is given to the furnace; F is the hearth, which con-tains the metal being puddled; G are hollow bridges kept cool by air or water passing therethrough ;His the fire-grate; lis the door through which the furnace is charged and the blooms removed; J isthe firing-door. After the fettling and cinder are placed in the hearth in the usual manner, the fur-73 194 IRON-MAKING PROCESSES—PUDDLING. nace is charged with iron, and is then ready for action. The furnace is first inclined so that the heatedcases and products of combustion from the fire-
Size: 1893px × 1320px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorbenjaminpark18491922, bookcentury1800, bookdecade1880
