INDEX 



477 



Sheet metals Continued 



nature of work with, 441 



nick el, 454 



pewter, 456 



platinum, 450 



tempering, 451 



tin, 445 



zinc, 448 

 Shrink rule, 384 

 Shrunk fits, 398 



allowance for, 398 

 Shunt dynamo, 194 

 Siemens-Martin process 403 

 Silencer, 364 

 Siphon, 96 

 Sizing, 163 

 Smoke, 323 

 Soldering, 



aluminum, 457 



fluxes, 456 



process of, 456 

 Solution, 143 

 Sound, 122-123, 124 



intensity of, 122 



pitch of, 122 



quality of, 122 

 Spark-plug, 365 

 Specific gravity, 80 

 Specific heat, 105 

 Spectrum, 119 

 Speed, 11 



Spontaneous combustion, 164 

 Springs, 64 

 Starting box, 200 

 Starting handle, 363 

 Steam, 



amount produced by specific 

 amount of water, 352 



characteristics of, 302 



exhaust heating, 345 



generation of, 302, 327 



hammer,397 



heating, 343 



low-pressure heating, 346 



source of, 302 



temperatures of, 324 



valves, 351 

 Steam engine, 328-341 



alignment of pipes, 334 



boiler of, 302 



condensing, 333 



corrosion of pipes, 336 



crank, 331 



governor, 330 



history of, 328 



installation of pipes, 333 



piping material, 337 



principal parts of, 329 

 Steam pressure, 105 

 Steel, 400-4 17 



annealing, 410 

 water, 412 



Bessemer process, 402 



case-hardened, 409 



castings, 407 



crucible, 406 



hardening of, 400 



influence of impurities on, 408 



influence of nickel on, 409 



mild, 408 



open-hearth process, 404-406 



Properties of, 400 

 iemens-Martin process, 403 



structural, 415-417 (See also 

 "Structural steel") 



tempering of, 400, 401 



testing strength of, 413 



tool, 400 



annealing, 411 



tungsten, 407 

 Storage batteries, 176 

 Strains, effect of, 235 

 Strength of materials, 233-248 



chains, 244 



effects of load of force on body, 

 233 



factors of safety, 243 



need of knowledge of, 233 



table of, 241 



testing laws concerning, 239-241 

 Stresses, 



kinds of, 234 



measurement of, 237 



of compression, 239 



of elongation, 238 

 Structural Steel, 415-417 



ornamental work, 415- 



uses of. 415 - 



working with, 416 

 Sublimation, 143, 148 

 Switchboards, 



power house, 206 



telephone, 2 14 

 Synthesis, chemical, 130 



