table of factors for Dulong's laws Radiators, experiments with, 545 Radius of curvature of wire rope, 922 of gyration, graphical method for of gyration of structural shapes, of oscillation, 421 Rails, size of bolts for splicing 210 steel, maximum safe load on, 865 Railroad axles, 384 trains, resistance of, 851 trains, speed of, 859 Railways, electric, 1041 narrow-gauge, 865 compressed-air, modulus of, 247 of ships, 1002 of trains, 851 work of, of a material, 238 Reversing-gear for steam-engines, Retarded motion, 424 Rhomboid, definition and area of, 54 Rhombus, definition and area of, 54 Rivet-iron and steel, shearing re- Rivets, bearing pressure on, 356 211 diameters of, table, 360 in steam-boilers, rules for, 700 pressure required to drive, 1080 hand, strength of, 355 pressure required for, 362 Riveted iron pipe, dimensions of, joints, 299, 354-363 joints, drilled vs. punched holes, joints, efficiencies of, 359, 361 joints, proportions of, 358, 359 Rupture, modulus of, 267 Safety, factor of, 314 valves for steam-boilers, 721- Salt brine, properties of, 464 solution, specific heat of, 458 Sand, cubic feet per ton, 170 Sandstone, strength of, 312 Sawing metal, 966 Scale, boiler, 716 boiler, analyses of, 552 Scales, thermometer, comparison Scantling, table of contents of, 21 939 Screw, 60 bolts, efficiency of, 974 conveyors, 912d curve, 50 differential, efficiency of, 974 (element of machine), 437 propeller, coefficients of, 1011 Screws, cap, table of standard. lag, holding power of, 290 threads, English standard, 205 threads, standard for taps, 207 threads, U. S. standard, table of proportions of, 205 threads, Whitworth, table. 205 wood, holding power of, 290 Sea-water, freezing-point of, 550 Secant of an angle, 65 table of, 159-162 Sector of circle, 59 Sediment in steam-boilers, 717 Seger's fire-clay pyrometer, 453 Segments, circular, table of areas of, Separators, steam, 728 hollow, torsional strength of, 282, steam-engine, 806-813 steel propeller, strength of, 299, Shafting, 867-872 horse-power transmitted by, 869- horse-power to drive, 963 Shaku-do, Japanese alloy, 326 structural, properties of, 272-280 and tension combined, 282 poles. stresses in, 442 Shearing, effect of, on structural resistance of rivets, 363 strength of iron and steel, 306 Shells of steam-boilers, material spherical, strength of, 286 Sheet brass, weight of, 203 metal, weight of, by decimal Sheets, iron and steel, weight of, Shibu-ichi, Japanese alloy, 326 coefficient of performance, 1003 horse-power for given speeds, horse-power of, from wetted sur- jet propulsion of, 1014 resistance of, per horse-power rules for measuring, 1001 speed in canals, 1008 trials of, 1007, 1008 twin-screw, 1017 Shocks, resistance of metals to re- stresses produced by, 241 Shop operation by compressed air, Short circuits, electric, 1036 Shot, American standard, sizes of, Shrinkage fits, 973 Sign of differential coefficients, 76 Silicon-bronze wire, 225, 327 influence of, on cast iron, 365, 370 relation of, to strength of cast Silver-melting, temperature deter- Silver, properties of, 168 ore, cubic feet per ton, 170 Single-phase circuits, 1068 Skin effect of alternating currents, Skylight glass, sizes and weights, 184 in wrought iron, 377 Slate roofing, dimensions and areas, roofing, weight of, 183 Slide-valves, steam-engine, 824-835 Slope, table of, and fall in feet per Smoke prevention, 712-714 Snow, weight of, 184, 281, 550 Soda mixture for machine tools, heat of ammonia, 992 heats of gases, 458 heat of ice, 550 heat of iron and steel, 459 heat of liquids, 457 heats of metals, 458 heat of saturated steam, 660 heat of superheated steam, 661 heats of solids, 457, 458 for elliptical steel springs, 352 for petroleum lubricants, 943 for steel castings, 397, 406 for steel rivets, 399, 401 for steel in Memphis bridge, 382 for structural steel for bridges, for structural steel for buildings, for structural steel for ships, 399 Spheres of different materials, table plane, 60 gears, 897 Spiral-riveted pipe, table of, 198 Splicing of ropes, 341 of wire rope, 346 Spring steel, strength of, 299 elliptical, sizes of, 352 elliptical, specifications for, 352 helical, formulæ for deflection and helical, specifications for, 353 helical, steel, table of capacity locomotive, specifications for, 400 to resist torsion, 352 root, 8 roots, tables of, 86-101 Squares of numbers, table, 86-101 St. Gothard tunnel, loss of pressure of a dam, 417 guy-ropes for, 293 heights of, to resist wind-pres- heights of, for various diameters thickness of bottom plates, 295 Stand-pipe at Yonkers, N. Y., 295 |