244 



SHEET-METALWORK 



Other Projects Suggested for this Groups 



Any low, straight-sided tin dish not requiring a wired 

 edge. 

 Stock Tin of medium weight cut to size and the same 



as, or similar to, pattern shown in Fig. 271. 

 Tools Those used for Problem No. 1, Sec. 209, and a 

 wooden mallet and ruler, or carpenter's square. It 

 will be necessary, also, to have a sharp-edged piece of 

 hard wood or a straight-edged piece of iron as long or a 

 little longer than the longest edge of the pan. 

 213. Strengthening the Edge. Ordinarily, it is de- 

 sirable to strengthen the upper edge of a tin receptacle by 



FIG. 271. Tin cut to shape for watering pan. 



running a wire around this edge under the tin which is rolled 

 over the wire, as in the case of a tin drinking cup or a funnel 

 (Fig. 278). 



This portion of the receptacle may be strengthened, but 

 not so well, by folding a small portion of the upper edge over 

 and pounding it down against the surface of the tin (Fig. 

 272). 



