CONTENTS 9 



weld. 199. Forge tongs. 200. Repointing cultivator shovel. 

 201. Sharpening plowshare. 202. Pointing plowshare. 203. 

 Shortening buggy tire without cutting. 



PART IV 

 SHEET-METALWORK 



CHAPTER XXII. TOOLS AND SUPPLIES; FUNDAMENTAL 



PROCESSES ........ 234 



204. Need for sheet-metalwork on the farm. 205. The process of 

 soldering. 206. Classes of solder. 207. Soldering fluxes. 208. The 

 soldering-iron. 



CHAPTER XXIII. PROJECTS IN SHEET-METALWORK . 239 



Problem 1 : Making a Lap Joint as Used on Tin Roof. 



209. Stock and tools for lap joint. 210. Working instructions for 



lap joint. 

 Problem 2: To Patch a Tin Receptacle. 



211. Preparation for patching. 212. Completing the patch. 

 Problem 3 : To Construct a Shallow Watering Pan for a Chicken Coop. 



213. Strengthening the edge. 214. Laying out and cutting tin to 



shape. 215. Folding. 



Problem 4: To Construct a Receptacle Requiring the Assembly of Heavy 

 Pieces of Tin or Galvanized Iron. 



216. Constructing watering trough. 



Problem 5 : Making a Cylindrical Receptacle with Handle and Rein- 

 forced Edge. 



217. Methods of inserting wire. 218. Shaping bottom. 219. In- 

 serting wire in the edge. 220. Handle for drinking cup. 



Problem 6: To Make a Conical Dish. 



221. Laying out conical shapes. 222. Construction of funnel. 



CHAPTER XXIV. SUPPLEMENTARY PROJECTS IN SHEET- 

 METALWORK 255 



223. Cylindrical receptacle. 224. Cubical box with lid. 225. Stove- 

 pipe collar. 226. Conductor elbows. 227. Roof ridge flange. 228. 

 A measure. 229. Three-piece elbow. 230. Roof cap and ventilator. 

 231. Gutter miter. 



