CHAPTER XXXIII.

=FORGING.=

=Testing Iron= by bending it 226 Testing machines 227, 228 =Tools for Blacksmiths= 228 to 232 Forges 228, 229 Chisels, &c. 230 Anvils 230 Swages 230, 231 Spring swages 231 Swage blocks 232 =Swaging= 232, 233 =Examples in Welding= 233, 235 Iron 233, 234 Steel to iron 234 Best method of 234, 237 =Examples in Forging= 238 to 252 Device for bolt forging 238 Forging turn buckles 239 Methods of bending iron 240 Device for bending iron 240, 241 Forging steel forks 241 Forging under the hammer 242, 243 Forging rope sockets 243, 244 Forging wrought iron wheels for locomotives 244, 245 Forging rudder frames 245, 246 Welding scrap iron for large shafts 247 Construction of furnace for heating scrap 247 Forging crank shafts 248, 249 Forging large crank shafts 249, 252 Forging machines 252 to 263 Foot-power hammer or Oliver 252, 253 Standish's foot-power hammer 252, 253 Power hammers and steam hammers 252, 253 Bradley's cushioned hammer 252, 253 Corr's power hammer 254, 255 Kingsley's trip hammer 255 The drop hammer 255, 256 Steam hammers 257, 258 Double frame steam hammer 258 Double frame steam drop hammer 258 Double frame steam drop hammer for locomotive and car axles and truck bars 259 The Edgemore Iron Works' hydraulic forging press 260 Dies for forging eye bars 260 Nail forging machine 260 Rolls for forming knife blades 261 Machine for forging threads on rods 261, 262 Finishing machine for horseshoes 262, 263 Circular saw for cutting hot iron 263