. Forging of iron and steel, a text book for the use of students in colleges, secondary schools and the shop . 176 FORGING OF IRON AND STEEL. Fig. 227 Taper Work. — Owing to the construction of thehammers only parallel sides can be worked without theaid of the special tool (Fig. 222). In Fig. 227 at (a) is shown a tool held with thecurved side to the work andthe piece drawn out andtapered by the fullering ac-tion of the curved surfaceat (6). The tool is thenturned over so that the flatface levels off the bumps and makes a smooth taperedsurface. Bending or Offsetting is accomplished by placing
. Forging of iron and steel, a text book for the use of students in colleges, secondary schools and the shop . 176 FORGING OF IRON AND STEEL. Fig. 227 Taper Work. — Owing to the construction of thehammers only parallel sides can be worked without theaid of the special tool (Fig. 222). In Fig. 227 at (a) is shown a tool held with thecurved side to the work andthe piece drawn out andtapered by the fullering ac-tion of the curved surfaceat (6). The tool is thenturned over so that the flatface levels off the bumps and makes a smooth taperedsurface. Bending or Offsetting is accomplished by placing thework between the steel blocks (a and b, Fig. 228) andhitting a blow with thehammer. The piece willbe bent as shown at (c). Drawing Out. — Thehammer is the most usefultool for drawing out stock. lg The same care must be observed in drawing down toround as in performing a similar operation with a hand-hammer. It must be drawn down square first, then oc-tagonal, and so forth until it is round. If a square piece gets out of shape, as(a) in Fig. 229, it canbe trued up again byturning and striking asat (6), rolling it overslightly and
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1915
