. Forging of iron and steel, a text book for the use of students in colleges, secondary schools and the shop . which will stretch to lOf long. Draw out the balance of theB and smooth with flatter. Smooth with swage-stock to dimensions in 20Bend handle as shown 196 APPENDIX in 20 C, shape blades, punch eye and rivet and case-harden the points. Example 21. Welding. — Stock, Norway Iron f X1 x 24 long. Explanation. The stock is folded to make threethicknesses and welded to a solid piece and brought n n. Z03 down to f square section. To test the weld Fig. 21 Ais made after cutting off the imperfec
. Forging of iron and steel, a text book for the use of students in colleges, secondary schools and the shop . which will stretch to lOf long. Draw out the balance of theB and smooth with flatter. Smooth with swage-stock to dimensions in 20Bend handle as shown 196 APPENDIX in 20 C, shape blades, punch eye and rivet and case-harden the points. Example 21. Welding. — Stock, Norway Iron f X1 x 24 long. Explanation. The stock is folded to make threethicknesses and welded to a solid piece and brought n n. Z03 down to f square section. To test the weld Fig. 21 Ais made after cutting off the imperfect ends. (The restof the bar can be used for Example 26.) Operation. Lay off as shown in 21 B, fold as in 21 C,and weld. Bring down to f square section. Cut offimperfect ends, fuller with top and bottom fullers \\from end and draw down to § square. (See 21 A.) A COURSE OF EXERCISES 197 Lay off center portion 1§ and fuller all around the down to \ round and then form hexagon. Cut off excess stock so as to have the piece the correct length. « P D *- /£—t- >:-4 CfJ Q3 Ztf? ax: Z//3 ^ 7£ £ %i c Example 22. Chain Link. — Stock, Norway Iron fdiameter, 6§ long. Explanation. Three links of a chain are to be madefor Example 22 but before handing in for credit the threeexercises following are made and joined to them byadditional links. Operation. Fully explained on page 95.
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1915
