PROJECTS IN SHEET-METALWORK 251 



lies flat on the bench, fasten the bent edge of tin over the wire 

 at each end with a pair of pliers, then carefully pound the re- 

 maining portion of the bent edge over the wire until it lies 

 smooth and hugs the wire the entire length (Fig. 283) . Fig. 



284 shows the process of 

 folding a wire in the edge 

 of a piece of tin. 



. EDGE OF TIN 



FASTENED AT EACH END OVER WIRE .b Old the end lapS Ol 



FIG. 283. Inserting wire. the pa ttern in opposite 



directions to form the lock joint seam for the cup, as shown 

 in insert, Fig. 279. Roll the entire surface over the cylin- 

 drical end of the piece 

 of wood used to form 

 the bottom of the cup, 

 having the wire on the 

 outside; lock the joint, 

 pound down with the 

 mallet and, at the same 

 time, slip the cylindri- 

 cal surface from the 

 wood. 



Solder the inside and 

 outside of the lock 

 seam, slip the body of 

 the cup into the bot- 

 tom, and solder around FlG - 284 - Folding metal over wire, 

 the bottom edge. The cup is now complete except for the 

 handle. 



220. Handle for Drinking Cup. Fold the two 1/8" 

 outside edges of the strip for the handle (Fig. 285) as in the 



