Fig. 43.
CHAPTER III.
Corner Weld—Brazing—Fagot Weld—Turning a Loose Eye—Hammock Hook—Finishing Wrought Iron—S Link—Welded Eye Pin.
A corner weld made by using heavy stock, for example, one and one-fourth inch square, is to have a square corner by welding. See [Figure 44]. With the dimensions six inches from one end, the bar is heated and cut about half thru from one side with a hot chisel. The bar is then heated and bent to about a right angle, as shown in [Figure 45]. A piece of ¾-in. square stock is cut on four sides as shown in [Figure 46]. This piece is welded into the corner as shown in [Figure 47]. The heat is separate, and the smith takes both pieces to the anvil when hot. He places them in position as shown in the drawing, the helper doing the welding. The long part of the bar is then broken off, another heat is taken and the corner is finished up by the smith.
Fig. 44-45.
Brazing.
Iron and steel can be fastened together by brazing. In doing this, the ends are tapered or dove-tailed together and bound with wire or a rivet to hold them in position. They are then placed in the fire and brought to a red heat. Some borax and spelter are put on and the heat is raised until the brass flows. The work is then taken out of the fire and let cool; then it is finished with a file, or by grinding. Spelter is an alloy of copper and zinc, and may be purchased from dealers. Brass wire may also be used in brazing, and sometimes copper.
