242 



SHEET-METALWORK 



, 



run the iron slowly the entire length of the joint with one 

 stroke, to make a smooth finish. 



This exercise should be repeated, if necessary, until a 



perfect joint can be 

 made witha few strokes 

 of the soldering-iron. 

 Problem No. 2: To 

 Patch a Tin Receptacle 

 (Figs. 268 and 269). 



Stock Any tin re- 

 ceptacle with a hole 

 in it. 



Tools Those used 

 for Problem No. 1. 

 211. Preparation for Patching. Perhaps one of the most 

 general uses of the soldering-iron in the home is for patching 



LTxrcje hole 



FIG. 267-a. Correct position of soldering 

 iron. 



"hole 

 FIG. 268. Patching small hole. FIG. 269. Patching large hole. 



tin utensils. Such work may be listed under two heads, viz., 

 small-hole patching, where an additional piece of tin is un- 

 necessary, and large-hole patching, requiring a piece of tin to 

 cover the hole. 



In the first case, the hole'is first closed as far as possible by 

 pounding the tin around it with a mallet over a surface as 

 nearly the shape of the tin surrounding the hole as possible. 



