None
Mile-ohm, weight of wire per. 217 Mill columns. 1022 power, value of, 589 Muling cutters for gear-wheels, 892 cutters inserted teeth, 960 cutters, number of teeth in, 958 cutters, pitch of teeth, 957 cutters, qpiral, 960 Milling cutters, steel for, 957 machines, cutting speed of. 958'- 960 machines, feed of, 959, 960 machines, high results with, 959 machine v«. planer, 960 Miner's inch, 18 inch measurements, 585 Mines, centrifugal fans for, 521 Mine fans, experiments on, 522 ventilation 531 ventilation, equivalent orifice. 533 Modulus of elasticity, 237 of elasticity of various materials, 314 of resistance. 247 of rupture 267 Moisture in atmosphere, 483 in steam, determination of, 728* 731 Molesworth's formula, flow of water, 562 Moments, method of, for determin- ing stresses. 445 Moment of a couple, 418 of a force, 416 of friction, 938 of inertia, 247,419 of inertia of structural shapes, 248, 249 statical, 417 Momentum, 428 Monobar, 9126 Morin's laws of friction, 933 Mortar, strength of, 313 Motion, accelerated, formulfe for, 427 friction of. 929 Newton's laws of, 415 on inclined planes, 428 perpetual, 432 retarded, 424 Motors, alternating-current, 1071, 1077 compressed-air, 507 electric, direct-current, 1055, 1074-1076 water-current, 589 Moulding-sand, 952 Moving strut. 436 Mule, work oi, 435 Multiphase electric currents, 1068 Muntz metal composition of, 325 Multiple system of evaporation 463 Mushet steel, 409 Nails, cut va. wire, 290 cut, table of sizes and weights, 213 wire, table of, sizes and weights, 214, 215 Nail-holding power of wood, 291 Naphtha engines, 850 Napier's rule for flow of steam, 669 Natural gas, 649 Nautical measure, 17 mile, 17 Newton's laws of motion, 415 Nickel-copper alloys, 332 1113 Hie-pip TKDM. Nickel, properties of, 168 steel, 407 steel, tests of, 408 Nozzles for measuring discharge of pumping-^ngines, 584 Oats, weight of, 170 Ocean waves, i>ower of, 599 Oersted, definition and value of, 1050 Ohm, definition and value of, 1024 Ohm's law, 1029 law, applied to alternating cur- rents, 1064 law, applied to parallel circuits, 1030 law. applied to aeries circuits, 1029 Oil, amount needed for engines, 943 as fuel, 646 fire-teat of, 944 lubricating, 942--945 (see Lubri- cants) paraffine, 944 well, 944 pressure in bearings, 937 tempering of steel forgings, 396 vs. coal as fuel, 646 Open-hearth furnace, temperature determinations in, 452 steel {see Steel, open-hearth) Ordinates and abscissas, 69 Ores, weight of, 170 Orifice, equivalent, in mine ventila- tion. pip-pou 1113 Pipes, coiled, table of. 199 0ffectfl of bends in, 488, 578. 672 equation of , 491 fitting, cast-iron, sixes and weights, 187 fittings, spiral-riveted, table, 198 flanges, for cast-iron pipe, table, 193 flanges, extra heavy, table, 193 flanges, table of standard. 192 flow of air in, 485, 489 flow of gas in, 657 flow of steam in, 669-673 flow of water in, 657. 566-572 for steam-heating, 540 house -service, flow of water in, table. 578 lead, safe heads for, 201 lead, tin-lined, sizes and weights, table, 201 lead, weights and sizes of, table, 200 loss of air-pressure in, 487 ; tables, 488, 489. 490 loss of head in, 573-579 (see Loss of head) quantity of water discharged by, 673 riveted hydraulic, weights and ^ safe heads, table, 191 riveted -iron, dimensions of, table, , 197 riveted, safe pressures in, 707 riveted -steel water, 295 spiral riveted, table of, 198 Steam (jsee Steam-pipes) table of capacities of, 120 threads on, 195 wrought -iron, standard, table of dimensions, 194 volimie of air transmitted in, table, 486^ water, relation of diameter to capacity, 566 Pipe-coverings, radiation through, 671 Hstons, steam-engine, 795 Piston-rings, steam-enijpne, 796 Piston-rods, steam-engine, 796-798 Piston -valves, steam-engine, 834, 1016 Pitch, diametral, 888 of gearing, 887 of rivets, 357-359 of screw propellers, 1012 Pitot tube gauge, 583 Pivot-bearings, 939 Pivot -bearing, mercury bath, 940 Plane, inclined, 437 (see Inclined plane) surfaces, mensuration of, 54 Planers, cutting speed of, 953 Planer, heavy work on, 960 horse-power required to run, 963 tools, forms of, 955 va. milling-machine, 960 Plates, acid-pickled, heat transmis- sion through, 474 Plates, areas of, in square feet , table, 123 boiler, strength of. at high tem- peratures. 383 brass, weight of, table. 202 corrugated-steel, properties of, table, 274 Carnegie trough, properties of, table, 274 circular, strength of, 283 copper, weight of. table, 202 copper, strength of, 300 flat, cast-iron, strength of, 286 flat, for steam-boilers, rules for, 701,706,709 iron, approximating weight of, 403 iron, weight of, table, 175 of different materials, table for calculating weights of, 169 stayed, strength of, 286 for stand-pipes, 293 perforated, strength of. Powell's screw-thread. 975 Power, animal, 433 definition of, 429 factor of alternating currents, 1062 hydraulic, in London- 617 measure of, 27 of electric circuits. 1031 of a waterfall, iSS of ocean waves, 599 unit of 429 Powers of numbers, tables, 7, 86- 102 of numbers, algebraic, 33 Pratt truss, stresses in, 443 Preservative coatings, 387-389 Press, hydraulic, thickness of cylin- ders for, 288 Pressed fuel, 632 Presses, hydraulic, in iron works, 617 punches, etc., 972 Pressure, collapsing, of flues. 265 collapsing, of hollow cylinders, 264 Priming, or foaming, of steam- boaers, 652,718 Prism, 60 Prismoid, 61 rectangular, 61 Prismoidal formula, 62 Problems, geometrical, 37-52 in circles, 39, 40 in lines and angles, 37 , 38 in polygons, 42 in triangles, 41 Producers, gas, use of steam in, 650 Producer-gas, 646-651 (see Gas) Progression, arithmetical and geo- metrical, 11 Prony brake, 978 Propeller, screw, 1010-1013 {see Screw-propellerj) shafts, strength oi, 299 Proportion, 5 compound, 6 PuUeys, 873-875 arrangement of, 874 arms of, 820 cone, 874 convexity of, 874 differential, 439 for ^ope-dri^'^ng, 925 or blocks, 438 proportions of, 873 speed of, 884. 891 Pulsometer, 612 tests of, 613 Pumps and pumping-engines, 601- 614 air, for condensers, 841 air-lift, 614 boiler- feed, 605 boiler-feed, efficiency of, 726 centrifugal, 606-609 centrifugal, as suction -dredge, 609 centrifugal, efficiency of, 608 centrifugal, relation of height of lift to velocity. 606 Pumps centrifugal , siases of. (507 centriftu?al tests of 609 circulating for condensers 843 compressed air mine. 511 deptn of suction of. 602 direct -acting, efficiency of, 604 direct-acting , proportions of steani cylinder, 602 duplex steam , sizes of, 604 feed for marine engines. 843 horse-power of, 601 jet, 614 leakage test of. 611 lift, water raised by 602 piston speed of, 605 single steam, sizes of. 603 speed of water in passages of. 602, 605 suction of, with hot water 602 theoretical cap£u;ity of, 601 vacuum, 612 Pump-valves, 606 Pumping by compressed air. 505a Pumping-engines duty trials of, 609 economy of , 782 table of data and results of duty trials, of, 611 triple-expansion, 782 use of nozzles to measure dis- charge of, 584 Punches, clearance of, 972 spiral, 972 Punched plates, strength of, 354 Punching, effect of. on structural steel. 394 and drilling of steel. 395 Purification of water, 554 Pyramid, 60 frustum of , 61 Pyrometer, air, Wiborg's, 453 copper-ball, 451 fire-clay. Seger's, 453 Hobson's hot-blast. md^rlr 1115 Radiating surface, computation of, for hot-water heating, 543 surface, computation of, lor steam heat, 536 Radiation of heat, 467 of various substancefl, 475 table of factors for Dulong's laws of, 476 Radiators, experiments with, 545 heating value of, 477, 534 overhead steam -pipe, 537 Radius of curvature of wire rope, 922 of gjrration. 247, 420 of gyration , graphical method for finding. 248 of gyration of structural shapes, 249. of oscillation. 421 Rails, size of bolts for splicing 210 size of spikes for, 212 steel, maximum safe load on, 865 steel, specifications for, 398 steel, strength of, 298 Railroad axles, 384 trains, resistance of, 851 trains, speed of, 859 Railways, electric. 1041 narrow-gauge, 865 Railway, street, compressed-air, 510, 511 Ram, hydraulic, G14 Ratio 5 Reactance of alternating currents, 1063 Reamers, taper, 972 R««aumer thermometer-scale, 448 Recalescence of steel, 402 Receiver-space in engines, 766 Reciprocals of numbers, tables of, 80-85 use of, 85 Rectangle definition of, 54 value of diagonal of, 54 Red lead as a preservative, 387 Ileduction, ascending and descend- ing, 5 Rectangular prisraoid, 61 Reese's fusing disk, 966 Reflecting power of substances, 468 Refrigerating - machines a i r - m a - chines, 983 ammonia-absorption, 984, 987 ammonia-compression, 983, 986 cylinder-heating. 997 ether-machines, 983 heat-balance, 990 ice-melting effect, 983 liquids for, pressures and boiling- pofnts, 982 operations of, 981 pipe-coils lor, 985 pertormances of, 994-997 properties of brine, 994 properties of vapor. 993 relative efficiency of, 988 relative pei^ormance of ammonia- compression and absorption macnines, 983 RefrijBerating-machines, sulphur-di< oxide machine, 985 temperature range, 991 tests of, 990-992 using water vapor, 988 Refrigeration, 981-1001 means of applying the cold, 990 Registers for steam-heating, 539 Regnault's experiments on steam, 661 Reluctance, magnetic, 1050, 1051 Reservoirs, evaporation of water in, 463 Resilience, 238 elastic, 270 Resistance, elastic, to torsion, 282 electrical, 1027-1032 electrical, effect of annealing, 1029 electrical, effect of temperature, 1029 electrical, in circuits, 1029-1031 electrical, internal, 1031 electrical, standard of, 1029 electrical, of copper wire, 1029, 1034 electrical, of steel, 403 elevation of ultimate, 238 of metals to repeated shocks, 238 modulus of, 247 of ships, 1002 of trains, 851 work of, of a material. 238 Resolution of forces, 415 Reversing-gear for steam-engines, dimensions of, 816 Retarded motion, 424 Rhomboid, definitioo and area ot, 54 Rhombus, definition and area of, 54 Rivet-iron and -steel, shearing re- sistance of, 363 Rivets, bearing pressure on, 356 cone-head, for boilers, weight of, 211 diameters of, table, 360 in steam-boilers, rules for, 700 pitch of, 359 pressure required to drive, 1080 rules for strength of, 360 steel, specifications for, 401 Riveting, efficiency of different methods, 355 hand, strength of, 355 hydraulic, strength of, 355 machines, hydraulic, 618 of structural steel, 394 pressure required for, 362 Riveted iron pipe, dimensions of, table, 197 joints, 299, 354-363 joints, drilled V8. Kiveted joints, single-riveted lap, 357 joints, calculated strength of double-riveted, 361 joints, tests of double-riveted lap and butt, 360 joints, tests of, table, 303 pipe, flow of water in, 674 pipe, weijsht of iron for, 197 Roaas, resistance of carriages on, 435 Hock-drills, air required for, 505a requirements of air-driven, 506 Rods of different materials, table for calculating weights of, 169 Hoof -truss, stresses in, 446 Hoofs, safe loads on, 184, 281 strength of, 1019 Hoofing materials, 181-184 materials, weight of various, 184 Holler-bearings, 940 Rolling of steel effect of finishing temperature, 392 Ropes and cables, 338-346 cable-traction, 226 charcoal-wire, 228 cotton and hemp, strength of, 301 for coal-hoisting, 343 hemp and wire, table of, working loads for, 339 hemp, table of, strength and weight of, 340 hoisting (see Hoisting-rope) "Lang Lay," 229 locked-wire, 231 manila, 340 manila, weight and strength of, 344 splicing of, 341 steel flat, table of sizes, weight, and strength, 229 steel- wire hawsers, 229 stevedore, 340 table of, strength of iron, steel, and hemp, 338 table of rarength of flat iron, steel, and hemp, 339 technical terms relating to, 341 transmission, 340 wire (see Wire-rope) Rope-driving, 922-927 English practice, 926 horse-power of, 924 pulleys for, 925 sag of rope, 925 tension of rope, 925 various speeds of, 924 weight of rope, 928 Rotary blowers, 626 steam-engines, 791 Rotation, accelerated, work of, 430 Rubber belting, 887 vulcanized, tests of, 316 Rnle of three, 6 I Rupture, modulus of ,267 Rustless coatings for iron, 388 Safety, factor of, 314 valves for steam-boilers, 721-* 724 Salt brine, properties of, 464 ^ manufacture, evaporation in, 463 solubility of, 464 solution, specific heat of, 458 weight of, 170 Sand-blast, 966 Sand, cubic feet per ton, 170 moulding, 952 Sandstone, strength of, 312 Saturation point of vapors, 480 Sawdust as fuel, 643 Sawing metal, 966 Scale, boiler, 716 boiler, analyses of, 552 Scales, thermometer, comparison of, 448; table, 449 Scantling, table of contents of, 21 Schiele's anti-friction curve, 50 939 Screw, 60 bolts, efficiency of, 974 conveyors, 912d differantial, 439 differential, efficiency of, 974 efficiency of, 974 (element of machine), 437 propeller, 1010-1013 propeller, coefficients of, 1011 propeller, efficiencv of, 1012 propeller, slip of, 1012 Screws, cap, table of standard, 208 lag, holding power of, 290 machine, proportions of. 209 machine, taps for. sep^sol 1117 parators, steam, 728 t-scre'veB, holding power of, 977 standard , table of, 208 'wers, grade of, 666 laft-bearings, 810 laft-govemors, 838 lafts, hollow, 871 hoUo'w, torsional strength of, 282; 806 steam-engine, 806-813 steel propeller, strength of, 209, 815 lafting, 867-872 deflection of, 868 formulee for, 867 horse-power transmitted by, 869- 871 horse-power to drive, 963 laying out, 871,872 keys lor, 975 >haku-do, Japanese alloy, 326 •hapes of test specimens, 243 structural, properties of, 272-280 ihear and compression combined, 282 and tension combined, 282 poles, stresses in, 442 Shearing, effect of, on structural steel, 394 resistance of rivets, 363 unit strains of , 379 strength of iron and steel, 306 strength of woods, table, 312 Sheaves, wire-rope. 917 , 919 Shells of steam-DoUers, material for, 700 spherical, strength of, 286 Shell-plate formulse for steam-boil- ers. 701 Sheet brass, weight of, 203 copper, weight of, 202 metal, strength of, 300 metal, weight of, by decimal gauge, 32 Sheets, iron and steel, weight of, 174 Shibu-ichi, Japanese alloy, 326 Shingles, weights and areas of, 183 Skips, coefficient of fineness of, 1002 coefficient of performance, 1003 coefficient of water-lines, 1002 displacement of, 1001, 1009 horse-power of, 1009 horse-power for given speeds, 1006 horse-power of, from wetted sur- face, 1005 jet propulsion of, 1014 resistance of, 1002 resistance of, per horse-power 1006 rules for measuring, 1001 rules for tonnage, 1001 speed in canals, 1008 trials of. .1007. 1008 twin-screw, 1017 wetted surface of, 1005 Shipping maaeure, 19, 1001 Shocks, resistance of metals to re- peated, 240 stresses produced by. 241 Shop operation by compressed air, 509 Short circuits, electric, 1036 Shot, American standard, sixes of, 204 Shrinkage fits, 973 of cast iron, 368 of castings, 961 Signs, arithmetical, 1 Sign of differential coefficients, 76 of trigonometrical functions, 66 Silicon-aluminum -iron alloys, 330 Silicon-bronze, 328 Silicon-bronee wire, 226, 327 Silicon, distribution of, in pig iron, 369 influence of, on cast iron, 366, 370 influence of, on steel, 389 relation of, to strength of oast iron, 369, 370 , Silver-melting, temperature deter- minations, 462 Silver, properties of , 168 ore, cubic feet per ton, 170 Simplex gas-engine, test of, 848 Smokestack guys, 223 Simpson's rule, 66 Sine of an angle, 66 tables of, 159-162 Single-phase circuits, 1068 Sinking-fimds, 17 Siphon, 581,582 Skin effect of alternating currents, 1065 Skylight glass, sises and weights, 184 Slag in cupolas, 948 in wrought iron, 377 Slate roofing, dimensions and areas, 183 roofing, weight of, 183 Slide-valves, steam-engine, 824-835 {see Steam-engines) Slope, table of, and fall in feet per mile, 558 Smoke prevention, 712-714 Smoke-stacks, locomotive, 856 sheet -iron, 741 Snow, weight of, 184, 281, 560 Soapstone lubricant, 945 strength of, 312 Soda mixturo for machine tools, 945 Softeners in foundry practice, 960 Softening of water, 554 Soils, resistance of, to eronon, 565 Solder, brazing, composition of, 325 for aluminum, 319 Solders, composition of various, 338 Soldering aluminum bronze, 329 Solid bodies, mensuration of, 60-64 measure, 18 of revolution, 62 Solubility of common salt, 463 of sulphate of lime, 463 1118 anu-atB wifio gnvltv, 163-165 Tftvity and Baume's hydtom- beal of ice. sm heat of iron and 8t«e1, 459 heat of tiQuids. 457 beat of woods, 45S Spccilications for boiler-plate, 390 foroar-wbeeliion, 375 forhduil' for MmI aides. 397 for Btwl billets, 401 for Bleel oastlnga, 397 , 4CK for steal crank-pins. 401 for Meel formngi. 397 for steel uu^-rods. 401 for et«l parsllel rods, 401 for steel in Memphis bridge, 3S2 tor rtruetural ateel, 400 tor etniBtural steel for bridges, tor structural steel tor buildings, tor structural steel for ships, 399 ■Is. iSSo-io table of volumes Sphetieal polyton u«s of. Bl tTiaogle area and volume of. 61 lone. area and volutne of 62 shellB, strength of. 286 ■hell, thiclmetH of. to nast a liven pressure, 286 Spheroid. 63 Spilies, boat, suev and ifu^kla of, 212 holding power of. 289 wrought, 213 Siundle, surface ai Spiral, 50. 60 Bplice-b^, steel, specification SplicinK of ropes. and deflection, 347 , 353 laminnled steel. 347 locomotive, apeciiicationa foi phoBPhor-bronie, 352 eeroj-elhpticai. 347 to resist torsion, 352 Spruce, strength of . 310 , of. M' ^B05 "Sft5 and plates, table, 204 thicliness of battom platea, 2 thickoeas of plates in, 293 INDEX. ■ta-ste 1119 /-bolt iron, 379 yed. surfaces, strength of, 286 ys, steam-boiler, loads on, 703 :eaxn-boiler, material for, 703 y-bolts in steam-boilers, 710 am, 669-676 .etermining moisture in, 728- 731 Lry, definition, 669 Iry, identification of, 730 expansion of, 742, 743 low of, 668-674 (see Flow of stefun) Saseous, 661 generation of, from waste heat of coke-ovens, 638 heat required to generate 1 pound of, 660 latent heat of, 659 loss of pressure in pipes, 671 mean pressure of expanded, 743 moisture in, 728 properties of, as applied to steam- heating, 540 Hegnaulvs experiments on, 661 relative volume of, 660 saturated, definition, 659 saturated, density, volume, and latent heat of, 660 saturated, properties of, table, 663-668 saturated, specific heat of, 660 saturated, temperature and pres- sure of, 659 saturated, total h€»t of, 659 superheated, definition, 659 superheated, economy of steam- engines with, 783 superheated, properties of, 661 superheated, specific heat of, 661 temperature of, 659 weight of, per cubic foot, table, 662 wet, definition, 659 work of, in single cylinder, 746- 753 Steam-boiler, 677-731 Steam-boilers, bimiped heads, rules for, 706 conditions to secure economy of, 682 construction of, 700-711, 1085 construction of, United States merchant- vessel rules, 705-708 corrosion of, 386, 716-721 dangerous, 720 domes on, 711 down-draught furnace for, 712 effect of heating air for furnaces of. 687 efficiency of, 683 explosive energy of, 720 factors of evaporation, 696-699 factors of safety of, 700 feed-pumps for, efficiency of, 726 feed-water heaters for, 727 feed-water, saving due to heat- ing of. Steam-boilers, tannate of aoda com- pound in, 718 tests of, 685-609 tests of, at Centennial Exhibition, 685 tests of, hydraulic. 700 tests, rules for, 690-6956 tubes, holding power of, 704 tubes, iron vs. steel, 704 tubes, material for, 704, 709 tube plates, rules for, 704 use of kerosene in, 718 use of zinc in, 720 using waste gases, 689, 690 Steam-calorimeters, 728-731 Steam-domes on boilers, 711 Steam-engines, 742-847 advantages of compounding, 762 at Columbian Exposition, 774 bearings, size of, 810-813 bed -plates, dimensions of, 817 capacity of, 748 clearance in, 751 compound, 761-768 compound, best cylinder ratios, 768 compound, calculation of cylin- ders of, 768 compound, combined indicator diagrams, 764 .compound, condensing, 788 compound, cylinder proportions in, 765 compoimd, economy of, 780 compound, efficiency of. 784 compound, expansions in two- cylinder, 765 compound, formulse for expan- sion and work in, 767 compound, high-speed, perfor- mances of, 778, 779 compound, high-speed, sines of, 778, 779 compound marine, approximate horse-power of , 766 compound marine, cylinder ra- tios of, 766 compound, non-condensing, effi- ciency of, 784 compound, pressures in two cylinders, 765 compoimd, receiver t3T>e, 762 compound, receiver, ideal dia- gram, 763 compound, receiver space in, 766 compound, steam -jacketed, per- formances of, 778 compound, steam-jacketed, test of; 788 compound, Sulxer, water con- sumption of, 783 compound, two v». three cylin- ders, 781 compound, velocity of steam in passages of, 772 compound, water consumption of;777 Bteam-enginejt, oompound, Wolff type, 762 compound, Wolff, ideal diagram, 763 compression, best periods of, 752 compression, effect of, 761 condensers, 83&-847 (see Con- densers) connecting-rods, dimensiona of, 799 connecting-rod ends, 800 Corliss, 773, 780 cost of, 1085 counterbalancing of, 788 cranks, dimensions of, 805 crank-pins, dimensions of, 801- 804 crank-pins, pressure on, 804 crank-pins, strength of, 803 crank-shafts, dimensions of, 813 crank-shafts for torsion and flex- ure, 814 crank-shafts for triple-expansion, 815 crank-shafts, three-throw, 815 crosshead and crank, relative motion of, 831 crosshead-pin, dimensions of, 804 cut-off, most economical point of, 777 cylinder condensation, experi- ments on, 753 cylinder condensation, loss by, 752 cylinders, dimensions of, 792 cylinder-heads, dimensions of , 794 cylinder-head bolts, size of, 795 dimensions of parts of, 792-817 eccentrics, dimensions of, 816 eccentric-rods, dimensions of, 816 economic performance of, 775-791 economy at various speeds, 786 economy, effect on, ox wet steam, 781 economy of compound vs. 783 effect of moisture in steam, 781 estimating I.H.P. of compoimd, 755 estimating I.H.P. of single-cyUn- der, 755 efficiency in thermal units per minute, 749 exhaust steam used for h««-ti»^fc 780 , expansions in, table, 750 expansive working of steam in, ta- ble, 747 flywheels, 817-824 fljnvheels, arms of, 820 IKDEX. 8te iin SLm-^n^ne, fljrwheels,' centrifugal force in , 820 t^rwbeels, diameters of, 821 ly"wh,eels, formulse for, 817 l3rwheels, thickness of rim of, 823 ly^wheels, speed variation in, 817 El^nvheels, strains in, 822 Ei3rwheels, weight of, 818, 819 fiy^^rheels, wire-wound, 824 ftywheels, wooden rim, 823 foundations embedded in air, 789 fx-ames, dimensions of, 817 friction of, 941 eovemors, fly-ball, 836 eovemors, flywheel, 838 governors, shaft, 838 governors, ^^rings for, 838 KiiideSj sise of, 798 High piston speed in, 787 bigh-speed Corliss, 787 liigh-speed, performances of, 777- 780 liigh-speed, siaes of, 777-780 Horse-power constants, 766-768 indicated horse-power (I.H.P.) of single-cylinder, 755-761 indicator diagrams, 754 indicator diagrams, to draw clearance, line on, 759 indicator diagrams, to draw ex- pansion curve, 759 indicators, effect of leakage, 761 indicators, errors of, 756 indicator rigs, 759 limitation of speed of, 787 links, size of, 816 link motions, 834-836 mean and terminal pressures, 743 marine, 1016-1019 mean effective pressure, calcula- tion of , 744 measures of duty of, 748 non-condensing, 776, 778, 779 oil required for, 943 pipes for, 673 pistons, clearance of, 792 pistons, dimensions of, 795 piston-rings, size of, 796 piston-rods, fit of, 796 piston-rods, siae of ,797 piston-rod guides, siae of, 798 piston-valves, 834 prevention of vibration in, 789 progress in, 773 proportions of, 792-817. 1086 quadruple expansion, 772, 773 ratio of expansion of steam, 745 reversdng gear, dimensions of, 816 rotary, 791, 792 shafts, bearings for, 810-813 shafts, bending resistanoe of, 808 shafts, dimensions of, ^)6-813 shafts, equivalent twisting mo- ment of, 808 shafts, flywheel, 809 ■hafts, twisting resistance of, 806 angle-cylinder, economy of, 775 Steam-engines, sing^e-cyiinder, water ^ consumption of, 776 single-cylinder, high-speed, sizes and perfonnances of, 778 slide- valves, crank-angles, table, 830 slide-valves, cut-off for various lap and travel, table, 831, • .832 slide-valve, definitions, 824 dide-valve diagrams. Sweet's, 826 slide-valve di£«rams, Zeuner's, .827 slide-valve, diagram of port open- ing, cut-off. Steam-engines, water consumption of, 753, 776, 777, 783, 785, 786 water consumption from indica- tor-cards, 760 work of one pound of steam, 749 work of steam in single-cylinder, 746-753 wrist-pin, dimensions of, 804 Steam heat, storage of, 789 heating, 534-541 heating, diameter of supply mains, 539 heating, indirect, 537 heating, indirect, size of registers and ducts, 539 heating of greenhouses, 541 heating, pipes for, 540 heating, properties of steam and condensed water, 540 jackets on engines, 787 ^et blower, 527 ^et exhauster, 527 Jet ventilator, 527 loop, 676 -metal, compoeition of, 325 pipes, 674-676 pjpes, copper, strength of, 675 pip)es, copper, tests of, 674 pipes, fauures of , 676 pipes for engines, 673 pipes for marine engines, 674, .1016 pipes, riveted-steel, 675 pi()es, uncovered, loss from, 676 pipes, valves in, 675 pipes, wire-wound, 675 pipe coverings', tests of, 471 power, cost of , 790 power, cost of coal for, 789 separators, 728 turbines, 790 vessels (««« Ships) Steel, 389-414 aluminum, 409 analyses and properties of, 389 and iron, classification of, 364 annealing of, 412, 413 axles, specifications for, 397 axles, strength of. ■te-str 1123 9el«^ spring, strength of, 299 springs isee Springs, steel) strength of, 297-303 strength of, variation in, 398 structural, annealing of, 394, 395 structural, drilling of, 395 structural, earliest uses of, 405^ structural, effect of punching and shearing, 394 structural, for bridges, specifica- tions of. 399 structural, for buildings, specifi- cations of, 398 structural, for ships, specifications of, 399 structural, properties of, 272-280 structural, punching of, 395 sl^ctural, riveting of, 394 structural, specifications for, 400 structural, size and weights, 177- 180 structural, treatment of, 394-396 structural, upsetting of, 394 structural, welding of, 394 struts, 259' tempering of, 414 tensile strength of, at high tem- peratures, 382 tensile strength of pure, 392 tires, specifications for, 398 tires, strength of, 298 tool, heating of, 412 tungsten, 409 water-pipe, 296 welding of, 396 wire gauge, tables, 29 working of, at blue heat. 395 working stresses in bridge mem- bers, 262 Stevedore rope, 340 Stokers, mechanical for steam- boilers, 711 under-feed, 712 Stone-cutting with wire, 966 Stone, specific gravity of, table, 166 weight of, table, 166 strength of, 302, 312 StoragjB-batteries, 1045-1048 efficiency of, 1048 Storage of steam heat, 789 Storms, pressure of wind in, 494 Stoves, compressed-air heatmg, efii- ciency of^ 507 Stove foundries, cupola charges in, 949 Strain, 236 Strains, formulae for unit, in iron and steel in structures, 379 Straw as fuel, 643 Stream, open, measurement of flow, 684-588 Streams, fire, 579-581 (see Fire- streams) running, horse-power of, 689 Strength, compressive, 244-246 compressive, of woods, 311 loss of, in punched plates, 353 Strength, range of. in steel, 391, 392 shearing, of iron and steel, 30i6 shearing, of woods, table, 312 tensile, 242 tensile, of iron and steel at high temperatures, 382 torsional, 281 transverse. 266-271 of aluminum, 318 of aluminum-copper alloys, 328, 329 of anchor-forgings, 297 of basic Bessemer steel, 390 of belting, 302 of blocks, 906 of boiler-heads, 285 of boiler-plate at high tempera- tures, 383 of bolts, 292 of brick, 302, 312 of bridge-links, 298 of bronze, 300, 319-332 of canvas, 302 of cast iron, 370, 374 of cast iron, relation of, to sili- con, 369 of cast-iron columns, 250-254 of cast-iron water-pipe, 251 of chains, table. 307 of chain cables, table, 340 of castings, 297 of cement mortar, 313 of chalk, 312 of colunms, 246, 260-261 of colunms. Strength of materials, Kirkaldy'a tests, 296-803 of perforated plates, 353 of phosphor-bronze, 327 of Portland cement, 302 of riveted joints, 299, 364-362 of roofs, 446, 1019 of rope, 301,338, 339 of sandstone, 312 of sheet metal, 300 of silicon-bronze wire, 327 of soapstone, 312 of spiing steel, 299 of spruce timber, 310 of stayed surfaces, 286 of steam-boilers, 700-711 of steel axles, 299 of steel castings, 299 of steel, open-hearth structural, 391 of steel propeUer-skafts, 299 of steel rails, 298 of steel tires, 298 of stone, 312 of structural shapes, 272-280 of tunber, 309-312, 1079 of twisted iron, 241 of unstayed surfaces, 284 of yellow pine, 309 of welds, 300, 308 of wire, 301, 303 of wire and hemp rope,. 301, 340 of wrought-iron columns, 256 tensile, of pure steel, 392 Stress and strain, 236 Stress due to temperature, 283 Stresses allowed in bridge members, 262-264 combined, 282 eflfect of, 236 in framed structures, 440-447 in steel plating due to water pressure, 287 permissible in structural mate- rials, 381 produced by shocks, 241 Structural shapes, elements of, 248 shapes, moment of inertia of, 248, 273-280 shapes, properties of, 272-280 shapes, radius of gyration of, 248 shapes, sizes and weights, 177-180 steel {see Steel, structural) Structures, formulnp for unit strains in iron and steel in, 379 Strut, moving. 436 Struts, steel, formulae for, 259 strength of, 246 WTought-iron , formulae for, 259 Sugar manufacture, 643 solutions, concentration of, 466 Sulphate of lime, solubility of, 464 Sulphur dioxide and ammonia-gas, ^ properties of, 9|92 dioxide refrigerating-machine, 985 influence of, on cast iron, 367, 370 Sulphur, infiuenoe of, on steel, 389 Stmi and difference of anelee, func- tions of, 66 Superheated steam, economy of steam-engines with. 783 Surface condensers, 840-844 Surfaces, imstaved flat, 284 Suspension cableways, 915 Sweet's slide-valve diasram, 826 Symbols, chemical, 163 electrical, 1078 Ssoichronoua motor, 1071 T shapes, properties of Ganie(ie steel, table, 279 Tail-rope system of hAulaoe, 913 Tanbark as fuel. 643 Tangent of an angle, 65 table of 159-162 Tanks, plating and fFaming for. 287 oapacities of, tables, 121, 125. 126 Tannato of soda boiler compound. 718 Taps for machine screws, 970 lormultt and table for screw- threads of, 207 Tap-drills, sises of, 208 table of, 970. 971 Taper, to set in a lathe, 956 pins, 972 Tapered wire rope, 916 Taylor's rules for belting. 880-882 theorem, 76 Tees, Pencoyd steel, weifl^ts and sizes, 179 Teeth of gears, forms of, 892 of gears, {proportions of. 889. 89C Telegraph-wire, copper, table uf size ,weight and resistanoe of. 221 joints in, 217 tests of, table, 217 Telescope, Mesurd and Nouei'i pyrometric, 453 Temperature,^ absolute, 461 determination by color, 454 determinations of melting-points. 452 of fire, 622 rise of, in combustion of gaaesi 623 stress due to, 283 effect of, on strength, 309. 382 Tempering, effect of, on steei, 412 of steel, 414 oil, of steel forgings. 396 Tenacity of metals. 169 of metals at various tempen- tures, 309. 382-384 Tensile strength, 242-244 strength, mcrease of. by twist- ing. 241 strength of iron and steel at higb temperatures. 382 strength of pure steel, 392 tests, shapes of specimeoa for, 243 IKDEX. ten-tra 1125 iiision and flexure, combined, 282 and sliear, combined, 282 srne-plate, 182 specifioations for, 1088 3rra-cotta, -weight of, 181 est-pieces, comparison of large and small, 393 ests of aluminiun lUloys, 330 of aluminum brass, 329 of cast iron, 369 calorimetric, of coal, 636 compressive, of wrought - iron bars, 304 compressive, specimens for, 245 tensile, precautions in, 243 tensile, specimens for, 243 tensile, table of, 242 of brick, 312 of cast-iron columns, 250-254 of centrifugal pumps, 609 of chains, table, 307 of chain cables, 308 of cold-drawn steel, 305 of cold-rolled steel, 305 of fans, 514, 522, 524 of gas-engines, 849 of petroleum-engines, 851 of hydraulic ram, 615 of lap and butt riveted joints, 360 of materials, Kirkaldy's, 296- 303 of nickel^steel, 408 of pine timber, 309 of pulsometers, 613 of pumpin^-engines, 611 of riveted joints, table, 303 of steam-boilers, 685-699 of steam-boilers, rules for, 690- 6956 of steel eye-bars, 304 of steel plate, 390 of steel m Memphis bridge, 393 of turbine wheels, 696 of woods, 306 of wrought-iron coltmins, 305 of vulcanized rubber, 316 Theory of exponents, 36 Thermal capacity, definition of, 457 units, 455, 660 units, comparison of British and French, 455 Thermodynamics, 478 Thermometers, 448 Thermometer, air, 454 scales, comparison of, 448 scales, comparison of, table, 449 Threads, pipe, 195 Three-phase circuits, 1068 Toothed-wheel gearing, 439, 887- 906 {see Gearing) Tidal-power, utilization of, 600 Tie-rods for brick arches, 281 - Tiles, weight of, 181 Timber beams, safe loads, 1023 expansion of, 311 measure, 20 properties of, table, 310 resistance of drift-bolts in, 290 Timber beams strength of, 309-312, 1079 table of contents in feet, 21 weight of, table, 310 Time, measure of, 20 Tin, properties of , 168 -aluminum alloys, 330 -copper alloys, 319, 320 -copper-aluminum alloys, 330 -copper-zinc alloys, 322, 323 lined pipe, sizes and weights, table, 201 pipe, weights and sizes of, 200 plate, 182 plate, specifications for, 1088 plate, American packages of 182 plate, comparison of gauges and weights, table, 182 Tires, steel, friction of, on rails, 928 steel, specifications for, 398 steel, strength of, 298 Tobin bronze, analyses and proper- ties of, 325, 326 Toggle-joint, 436 Tons per mile, equivalent of, 27 Tonnage of vessels, 19, 1001 Tools, machine, speed of, 953 metal-cutting, forms of, 955 Tool-steel, heating of, 412 Torque of an armature, 1056 Torsion and compression com« bmed, 283 and flexure combined, 283 elastic resistance to, 282 of shafts, 806 Torsional strength, 281 Total heat of evaporation, 462 Track bolts. Transmission, rope, 922-927 (see Rope-driving) wire-rope. 917-922 (aec Wire rope) Transmission-rope, 340 Transporting power of water, 565 Triple-expansion engine, 769-772 (see Steam-engines) Transverse strengtn, 266^271 strength of beams, formula for, 268 strength, coefficient of, 267 Trapezium. 54 Trapezoid, 64 Trapezoidal rule, 56 Trianele, mensuration of, 54 problems in, 41 spherical, 61 trigonometrical solution of, 68 Trigonometry, 65-68 Trigonometrical forrauUe, 66 functions, relations of, 65 functions, signs of, 66 functions, table of natural, 159- 161 functions, table of logarithmic, 162 Triple-effect evaporator, 463 Trough plates, properties of steel, table, 274 Troy weight, 20 Trusses, Burr. 443 Fink roof, 446 Howe, 445. King-post, 442 Pratt, 443 Queen-post, 442 roof, 446 Warren girder, 445 Whipple, 443 Tubes, boiler, table, 196 boiler, table of areas of, 197 condenser, 840 horse-power of water flowing in, 589 of different materials, table for calculating weights of , 169 expanded boiler, holding power of, 307 iron, collapsing pressure of, 265 Mannesmann, strength of, 296 seamless brass, table, 198 steam-boiler, holding power of, 704 steam-boiler, iron va. steel, 704 steam-boiler, material for, 704, 709 strength of small, 266 welded solid-drawn steel, 199 wrought-iron, extra-strong, 196 Tube plates, steam-boiler, rules for, 704 Tubing, brass, weight of, table, 200 copper, weight of, table, 200 lead and tin, 200 zinc, weight of, table, 200 Tungsten-aluminum alloys, 330 7Sten steel, 409 Turbines, steam, 790, 1085 steam, bearings for, 941 Turbine wheels, 591-599 wheels, dimensions of, 597 wheels, efficiency of, 594 wheels, Pelton, 597 wheels, proportions of, 591 wheels, table, 595 wheels, tests of, 596 Turf as fuel, 643 Tumbuckles, 211 Turret lathes, cutting-speed of, 954 Tuyeres for cupolas, 948 Twin-screw vessels, 1017 Twist -drill gauge, tables, 29 Twist-dnlls, sizes and speeds, 957 Twisted iron bars, 241 Two-phase currents, 1068 Type metal, 336 Uehling-Steinbart pyrometer, 463 Unequal arms on balances, 19 Units, electrical, 1024 equivalent value of electrical and mechanical, 1026 of the magnetic circuit, 1050 Unit of evaporation, 677 of force, 415 of power, 429 of heat, 455, 660 of work, 428 Unstayed surfaces, strength of, 284 Upsetting of structural steel, 394 United States, population of , 12 standard gauge, ^eet-metal, 30 standard gauge, sheet-metal, ta- ble. 31 Vacuum, drying in, 466 pumps. 612 Valve-gears, steam -en^e, 824-836 Valve-rods, steam-engine, 815 («ee Steam-enj^ines) Valves, marine-engine, 1016 pump, 606 in steam-pipes, 675^ Vapors, saturation-point of, 480 Vapor water, weight of, 484 and gas mixtures, laws of, 480 for refrigerating-machines, 982 Varnish, 387 Velocity, angular, 425 definition of. 423 expres.sion of, 429 linear, of a turning body, 425 measure of, 27 of air in pipes by anemometer, 491 parallelogram of, 426 table of height corresponding to a given acquired ^ 425 of water in cast-iron pi()e, 567 of water in open channels. 564 Ventilating fans, 517-625 ducts, flow of air in, 530 Ventilation, 528-546 air-cooling for, 631 blower system, 645 INDEX. ▼en-wIn 1127 Ventilation, efficiency of fans and chimneys. 533 head of air, 533 of large buildings, 534 of mines, 531 Ventilators, centrifugal, for mines, 521 Ventilator, steam- jet, 527 Venturi meter, 683 Versed sine of an angle, 65 sine, relations of, in circle, 58 Verticals, formulsB for strains in, 444 Vertical high-speed engines, 777 Vessels (»ee Ships) Vibration of steam-engines, 789 Vis-viva. 428 Volt, 1024 Vulcanized rubber, tests of, 316 Walls of buildings. 1019 "Warehouse floors, 1019 Warren girders, stresses in, 445 Washers, sizes and weights of, 212 Washing of coal, 638 Water, 547-555 abrading power of, 565 analyses of, 553, 554 boiling-point of, 550 boiling-point at various baro- metric pressures, 483 comparison of head, in feet, with various units, 548 compressibility of, 164. 551 consumption of locomotives, 862 consumption of steam-engines, 753. 776 777.783,785 erosion by flowing, 565 evaporation of. in reservoirs and cnannels. 463 expansion of, 547 fall, efiiciency of. 588 fall power of, 588 flow of 655-588 (see Flow of water) flowing in tube, horse-power of, 589 flowing measurement of, 682- 588 freezing-point of. 550 hardness of. 553 head of, 557 _ head of. equivalent to pounds per square inch table. 549 heat-units per pound, 548 horse -power required to raise, 601 impurities of 551 jets. 579 meters 579 power 588-620^ power plants, high-pressure, 1081 power value of. 590 pressure due to weight of, 549 pressure of one inch 27 549 pressure of one foot 27, 549 price of 579 pumpmg by compressed air, 505a purincation of 554 Water, quantity discharged from pipes, 573 relation of diameter of pipe to capacity, 566 softening of, 654 specific heat of, 550 transporting power of, 665 velocity of, in cast-iron pipe» 667 velocity of, in open channels, 564 weight of, 27,547,548 gas, 648 gas, analyses of, 653 gas, manufacture of, 652 gas plant, efflciency of, 654 gas plant, space required for, 656 lines, coefficient of, 1002 pipes, riveted-steel, 295 pip>e, cast-iron, transverse ^ strength of, 251 pipe, ca.st-iron, weight of, 188 tower (see Stand-pipe) vapor and air mixture, weight of, 484 vapor, weight of, table, 484 wheel, 691-599 wheel, Pelton, 597, 1081 wheels, power of, 1082 Watt, definition and value of, 1024 Waves, ocean, power of, 699 Weathering of coal, 637 Wedge. 437 volume of, 61 Weighing on incorrect balance, 19 Weights and measures, 17-27 and measures. . .'037 a fuel, 639. 640 jitJon of. 640 rensths of, 311 Bpecific eravity of, table, 165 weicht of. table. 165 strength of. 302, 309-312, 107 tests of. 306 Woods, shearing streogth of vajv speciBc'heatsof, 458 weight of various, table. 310 Wooden flywheels. 823. 824 Wondstone, proportioa of, 316 Woolf eompound engtnea. 762 Wootten'8 looomotivo. 855 Work, definition of. 27, 428 f, 420 I of., 27 tioas of wrought iroa U orm-gearing, 807, 1086 rist-pms. eteam-eogiae, S04 rought iron, 377-.17B i:fi^DEX. wro-zon 1129 3usht iron, influence of rolling on, 377 'on pipe, standard, table of dimensions, 194 ron, slag in, 377 ron, specifications for, 378 ron, strength of, 245, 297, 300, 304, 378 rpn, strength of, at high temper- atures, 383 iron tubes, extra-strong, table, 196 ylolith, properties of , 316 connection for alternating cur- rents, 1068 ield-point, 237 determination of, 237 bars, Carnegie steel, properties of, table, 280 weights and sixes, 178 Zero, absolute, 461 Zeuner's slide-valve diagram, 827 Zinc, properties of, 168 aluminum alloys, 330 -copper alloys, strength of, 323 ^ -copper alloys, table of composi- tion and properties, 321 -copper-iron alloys, 326 -copper-tin alloys, specific gravi- ties of, 323 -copper- tin alloys, table of proper- ties and composition, 322 -copper-tin alloys, variation m. strength of, graphic representa- tion, 323 -copper-tin alloys, variation in strength of, 324 tubing, weight of, table, 200 use of, in boilers, 720 Zone, spherical, 62 of spheroid, 63 of spindle, 63 >SIFIED INDEX TO ADVERTISEMENTS. AITIk HiOSE. PAGB »st€>aBelting^Co .♦. 15 well Belting Go 15 [NSPBCTION AND IS^UtLAKCS, Dusks. National Tube do 9' ruT5»s (B«ASS). Bandolph-Oowes Co .,...,..,.. lO* Water, Softening and PubificatioX. Rttc a "M" abcock <& WUcox Ob., The 6 John WUey ASons...... ;, l»-a* loDS, Sheets, Tubes, Wibb, etc. Lnsonia Brass and Copper Co 12 tandolph-Clowes Co 10 IS. \ A^^Kit^-^i^ PoBTiiAND. Atlas Portland Cement Co.... 20 Bridgeport Chain Co 1^ Hoists. Yale <& Towne Mfg. Co., The 1 SYS. Alphons Custodis Chimney Constniction Co 19 i, MlIiliING CUTTBBS, BXAiaEBS, SPBING CUTTBBS, TAPS, ^iorse Twist Drill and Machine Co 17 KssoRS^AiR, Gas. etc. lnger«oll-Raiid Co , .••«• 4 Norwalk Iron Works Co., The 6 ETE Construction (Reinforced), Brown Hoisting Machinery Co 20 Al phons Custoaia Chimney Constmotion Co », « 19 iNS&BS, Wateb-Tube Heatebs, etc. R Wires, Cables, Babs, Sheets, Tubes, etc. Ansonia Brass and Copper Co » 12 [ers-Obb, Rock, Stone. Geo. Y. Cresson Co .....••.....•.. ;•••• 14 .s. Power and Hand. IngersoU-Band Co ,. 4 Norwalk Iron Works Co., The ,,, 6 iS, Twist, Morse Twist Drill and Machine Ck>. 17 R Cylinders. pRiCAL Generators, Motors, Abc and Incandbsoent VMPS, ETC. General £lectrio Co., The «• ,Y AND GeBUNCKcic Wheels. Norton Co 16 NBBBS AND OONTBACTOBS. Allis^halmers Co ;..... , 7 Brown Hoisting Machinery Co 20 NES. Allis-Chalmers Co 7 American Engine Co 5 Bider-Ericison Engine Co 21 INKS, Blowing. Lambert Hoisting Engine Co 11 Lidgerwood Mfg. Co . . 11 D-WATEH Heatebs, Sepabatobs, Tbaps, Exhaust Heads, ;tc. s Bkick, Tiles, Slabs, Cupola Linings, Clay Retobts, btc. MauierA Son, Henry 19 CLASSIFIED INDEX TO ADVERTISEMEN'B^ FirXIr-EOONOMIZBBS AND FXTRNAdpS. PAOX Oreen Fael-Ekionomizer Co., The 6 HOISTINQ MACHINKBT— EliBYATOBSi, CONVXYOBd, BTC. Brown Hoisting Mo^chinery Co 20 Lambert Hoisung Engine Ck> U Li^gerwood Mfg. Co U HYDBANTeu Cliapman Valve Mfg. Co a iNSUIiATED WlBBS AND CABLBS. Ansonia Brass and Copper Co 12 New York Insulated wire Co Ig XiOOOMQTtVBS. Baldwin Locomotive Worl(9 2 METBBa. Natioqal Meter Co 9 Mfi^iiiNO Machines, Shapbbs, Planebs, PuNCimi, RoiiiiS, Bheaks, Lathes, Machine Tools, Bolts, etc. Oarvin Machine Co 17 Lodge <& Shlplev Machine Tool Co., The IS Sellers ^ Co., William (Incorporated) J? Mining and Quabbyino Machineby. Allis-Chalmers Co , 7 Brown Hoisting Machinery Co 90 Ingersoll-Rand Co 4 Norwalk Iron Works Co., The 5 Packing— Piston, Valve, Joint. Boston Belting Co 15 Pipe, Wateb and Gas. American Pipe Mfg. Co , 8 National Tube Co 3 Simmons Co., John .'...., 10 Pneumatic Tools. Ingersoll-Rand Co 4 Pumping Machineby. AUisChalmers Co 7 Epping-Carpenter Co , 9 National Meter Co 9 Rider-Ericsson Engine Co 21 Rubbeb QooDS. Boston Belting Co 15 Scalb-Pbevention. Steam Specialties and Enoinebbing Appliances. Hancock Inlgpirator Co 8 SuBVEYiNG Instruments. Keuffel <& Esser Co ^ 22 Queen <& Co., Incorporated 22 Tool Qbindebs. NortonCo 16 Tbansmission Rope. American Manufacturing Co 18 Geo. B. Carpenter <& Co .-. 14 Valves—Gas, Wateb, and Steam. Chapman Valve Mfg. Co 8 Hancock Inspirator Co 2 Wateb-Supply. Rider-Ericsson Engine Co 21 Wateb-Wobks, Contbactobs fob. American Pipe Mflg:. Go 8 Wxbe Rope and Telegbaph, Telephone, and Tbollst Wibs. Ansonia Brass and Copper Co 12 Roebling's Sons Co., John A 12 ALPHiBETICiL IIDEX TO ADYERTISEHEIITS. PAOS ALLIS-CHALMBR8 COMPANY 7 ALPHONS CUSTODIS CHIMNEY CONSTRUCTION CO 19 AMERICAN ENGINE COMPANY 5 AMERICAN MANUFACTURING COMPANY, THE 18 AMERICAN PIPE MANUFACTURING CO 8 AN80NIA BRASS AND COPPER COMPANY 12 ATLAS PORTLAND CEMENT COMPANY 20 BABCOCK A WILCOX CO., THE . 8 BALDWIN LOCOMOTIVE WORKS . 2 BOSTON BELTING COMPANY 16 BRIDGEPORT CHAIN COMPANY, THE 18 BROWN HOISTING MACHINERY CO 20 CARPENTER A COMPANY, GEO. B 14 CHAPMAN VALVE MANUFACTURING COMPANY 8 CRESSON A COMPANY, GEO. V 14 EPPING-CARPENTER COMPANY , 9 GARVIN MACHINE COMPANY, THE 17 GENERAL ELECTRIC COMPANY, THE 8 GREEN FUEL-ECONOMIZER COMPANY, THE.....^ 6 HANCOCK INSPIRATOR COMPANY, THE 2 INGERSOLL-RAND COMPANY 4 JEWELL BELTING COMPANY 16 KEUFFEL & ESSER COMPANY , 22 LAMBERT HOISTING ENGINE COMPANY 11 LIDGERWOOD MA NUF ACTURING COMPANY 11 LODGE & SHIPLEY MACHINE TOOL COMPANY, THE 18 MAURER ASON, HENRY 19 MORSE TWIST DRILL AND MACHINE COMPANY 17 NATIONAL METER COMPANY 9 NATIONAL TUBE COMPANY 8 NEW YORK INSULATED WIRE COMPANY 18 NORTON COMPANY .- 16 NORWALK IRON WORKS COMPANY. THE 6 QUEEN A COMPANY, INCORPORATED «. 22 RANDOLPH-CLOWES COMPANY 10 RIDER-ERICSSON ENGINE COMPANY 21 ROEBLING'SSONS.COMPANY, JOHN A 12 SELLERS A COMPANY, WILLIAM, INCORPORATED 17 SIMMONS COMPANY, JOHN 10 WILEY, JOHN A SONS 18-21 YALE A TOWNE MANUFACTURING COMPANY, THE 1 ^ 9 3 are available for almost every, contracting and engineering work. They are the most efficient hand hoists made,, ^4 effect pronounced saving^ in time, labor and repair bills-. , : : = .. Talf^Town^ Chain Blocker are constructed upon; the ^ most approved mechan- ical- prmei pies, and eaetr- part is carefully made and inspected. < Thi^ makesi each block absolutely jsaFd and promotes ease of operation and long life. Trjeplbx, — For greatest ease and quick- ness. 14 sizes. % to 20 tcMtts. DuPLEX.-r-^or ease and . handiness. lo sizes. ^ to 10 tons. Differential. — The Cheapest reliable chain block. 7 sizes. 3^ to 3 tons. Electric Hoist.— Best where conditions justify it. 4 sizes., i to 6 tons. Catalogues and other information ient on request. The Yale& Towne Mfg. Co. 9-15 Murray Street, New York tomt OjSkesV Chicago, Boston, Pbilactelphia, San Francisco. Baldwin Locomotive Works BURNHAM, WILLIAMS & CO., PHILADELPHIA, PA„ U. S. A. locomotives of Every Descripdoo Electric Locomotives, Electric Motor and Trailer Truclcs STANDARD STEEL WORKS HARRISON BUILDING, PHILADELPHIA. PA. STEEL TIRED WHEELS SOLID FORGED ROLLED STEEL WHEELS LOCOMOTIVE TIRES RAILWAY SPRINGS FORCINGS CASTINGS THE HANCOCK VALVES Made m one «r&.de ONLY FOR. ALL KINDS OF SERVICE OUR GUARANTEE 'e guarantee that each and every icockGlol)e, Angle. 60° and Cross ve, with our inonogram 011 it, has n tested with 1000 pounds water sure and foiind tight before 'ing the works." TbeHaicoclL Inspirator Co. 85-87-89 Liberty St. 22-24-26 So. Can»I St. NET YORK CHICAGO Tbe General Electric Company's Type M Control (Sprague-Qeneral Electric System) FOR ELECTRIC TRAINS HAS BEEN ADOPTED EXCLU- SIVELY BY THE NEW YORK UNDERGROUND RAILWAY. (Interborough Rapid Transit Company) ILL ELECTRIC TRAINS ON MANHATTAN ISLAND ARE EQUIPPED WITH THE SPRAGUE-GENERAL ELECTRIC SYSTEM OF CONTROL. General Office: SCHENECTADY, N. V. Nm York Offiei : 44 Broad Street. Sales Offices in aii \m cities NATIONAL TUBE COMPANY. MANUFACTURERS Of LAP- AND BUTT-WELDED WROUGHT PIP£ (■/s INCH TO aO INCHES DIAMETER.) Charcoal-IiOD and NM-Steel Boiler-Tubes FOR Marine, Locomotive, and Stationary Boilers SEAMLESS TUBES. TROLLEY POLES, OIL- AND WATER-WELL TOBULAR 6000$. LOCAL SALES OFFICES: BOSTON, NEW YORK, PHILADELPHIA, PITTSBURG, CHICAGO. SAN FRANCISCO. FOREIGN SALES-OFFICE: LONDON, ENGLAND 8 f • ; i n POWER APPLIANCES < « 1,1' ♦ 5 ♦ 'f h:.^tnl For thirty-five years the stancUkrcLf i.of progress in engineering work ,<■ J . ♦ I I AIR AND GAS COMPRESSO.^S .. ROCK DRILLS '• -^ ' COAL-MINING l\iJACHINiFrX\\T k STONE CHANNELEftS'^^^^'^' PNEUMATIC PUMPING ^SYSTEMS PNEUMATIC TOOLS' tJ^iA -haj Complete Pneunatio Power £i|iiitmefifti£llD Descriptive literature sent on request IN6ER$dLL-RANB JJOI CO. 1 1 BROADWAY. NEW VORK * •?! vi :m OFFICES IN ALL  CampBURd Air Cyliiid. en. CerliM Air «il.« on Ihe intake cylinder. B^''celThelnt»ro«i»» between the cylinder« »ion before tl>e work is done, nol after, and done""a''Vt™'lSbt'*p!l" ■nd puih on a sonlinu- aui piston roi. The — Uinad : the repair bill) Ihe mac ide is economii:^! and efficleal. Triple Stum Em orhigbprcure ,.iefy, e gaiei. CompoUDd ail4 THE NORWALK IRON WORKS CO., SOUTH NORWALK, CONN. AMERICAN-BALL DUPLEX COMPOUND ENGINE AND DIRECT-CONNECTED GENERATOR. The latest develop" ment in practical steam-engineering. The highest econ- ;;:;Omy of steam with ^the simplest possi- " ble construction, im equipments fur- nished of our own manufacture. AMERICAN ENGINE CO., New York Qfficfr-95 Liberty St. Bound Brook, N. J. The Babcock & Wilcox Co. 85 Liberty Street, New York. nakers of BABCOCK & WILCOX Stirling, A. & T. Horizontal, Cahall Vertical, Water Tube Steam Boilers. Steam Superheaters. riechanical Stokers. Works: Bayonnc, New Jersey. Barberton, Ohio. GREEN'S FUEL ECONOMIZER FOB STEAM BOILERS. «OXE MAKERa ly TMtC UNITED 8TAXEM. Tm GBEEI FUEL ECOIOHZEE CO. Of lattuiu, I, 1 LLIS-CHALMERS CO., CCNCRAL OrFICC) CHICAGO. U. S. A. N«w York L,if« Building SOL£ BUILDERS OF EYNOLOS CORLISS ENGINES FOR ALL POWER PURPOSES. Reynolds Horlsontsl Cross-Compciuiul Entilne. 4IGH DUTY, I TRIPLE EXPANSION I VND COMPOUND I UlTIi II1U LIIUIIILUl Sewerage and Drainage Pumps. Blowing and Hoisting Engines. REDLER PUMPS AND AIR COMPRESSORS. BR.ANCH OFFICES: NET YORK, 71 Broadway. BOSTON. PITTSBURG. CHARLOTTE. ATLANTA. IJEV ORLEANS. DENVER. SPOKA^TE. SALTIAKEOTY. SEATTLE. SAN FRANOSCa 1 TH£ AMERICAN PIPE MTQ. CO. ENGINEERS AND CONTRACTORS FOR Water -Works -Narvufacturers of- PHIPP'S HYDRAULIC PIPE 112 NORTH BROAD STREET PHILADELPHIA CHAPMAN VALVE MFG. CO., WORfCS AND MAIN OFFICE: INDIAN ORCHARD, MASS. BRANCH OFFICES: BOSTON, NEW YORK, PHILADELPHIA, BALTIMORE, ALLENTOWN, PA.; CHICAGO, ST. LOUIS, SAN FRAN- CISCO, LONDON, ENGLAND; PARIS, FRANCE; AND JOHANNESBURG, SOUTH AFRICA. VALVES MADE IN ALL SIZES AND FOR ALL PURPOSES AND PRESSURES. CaaiiESPONDENCE SOUCITEO. 8 THE OREATEST WATER METER RECORD EVER MADb. 560,000 Crown, Empire, Nash, Oem METERS IN USE. National Meter Company, NEW YORK, CHICAaO, BOSTON, PITTSBURG. EPPIHG-CARPENTER COMPANY, PITTSBURG, PA. IMPROVED PUMPING MACHINERY FOR EVERY SERVICE. AIM Surface Condensers, with Air and Cfrculating Pumpa, both Singly and Duplex. Randolph-Clowes Co. Waterbury, Conn. Brass »nd Copper Rolling Mills AND Tube Works. seamless brass and COPPER TUBES and SHELLS Up to 36 Inches Diameter. HOISTING ENGINES CDBLEWilirS, urn COHVETIKe DEVICES OF EVERY DESCRIPTION of the LIDGHRWOOD maKe Tor idiplation and cffklcn^. Ensinu arc built lo g«igt upllcate Part Syttem. ; delivery uiorcd. ir 28,000 in use. Sauifor Laleil Calahgaei. NEW YORK. LAMBERT HOISTING ENGINES ELECTRIC HOISTS p to date and built tor ' are built to gauges and apted for Oeaeral Con- driving, Quarrying, Mln- Hoisting and Conveying LOGQING ENGINES CABLEWAYS S»i)d for Catalogut O.D. LAMBERT HOISTING ENGINE CO^ II5-I3I Poinier street, Newark, N. J., U.S.A. New Votk Oflice, - • 8s Liberty Street. THE ANSONIA BRASS & COPPER CO MANUFACTURERS OF COPPER WIRE AND CABLES For Trolley Roads, Electric Lighting Companies, Power Transmission Plants, Etc. DRAWN COPPER BARS For Switchboanis. Commutators, Armatures, Etc. ! SOLE MANUFACTURERS | • "TOBIN BRONZE" IhHl* for Yacht Shafting, Bolts, Pump Pistons; also Sheets, Tiibt^ h 99 JOHN ST, NEW YORK OTY ^ Dozen treasons tvfy if^ere u tnore MEI^Ur^7T^ used ikan all omer brands combined:^ 1 // I J sel/' lubrtcattny - 2 Sire/cAed tnjtrocess af^ manufaciure- 9 Ouier yarns edp$d io retard exiernal u)ear- 4> BrrenoMilahempinromMui'nosjieiyiycarf- i\.ope Oii io exaci lenyiks required- Cous toj>ooft lony a)tmoui a sphce- Larfe s/ock m all sues insures prompi SMfmenis- Our experl spncers sen! anyiVhere- Dcpert consuliaiwnytv^n upon reguest- Dnvh designed c- drau)mjs/(irmsMyratiS' fto order too small or iootarj^eyor us- li IS iheyinesi example ^ ine rope makers* art , '^AMEMCAN MFG. CQ 65 WALL J'TI^EET NEW YOR^K. ** Tkt Blue Book of Rope Transmission " Jree upon request. 18 ••OLD COLONY ft Transmission R.ope Our Old Colony selected long fibre Manila Transmission Rope embodies every point of high quality and efiiciency that long experience and scientific experiment have contributed to the art of rope making. It is the one rope on the market sold absolutely on its merits, its price being always based on the market value of the best marks of Cebu Manila hemp, of which it is made. In the manufacture of Old Colony Rope the question of price is not considered, the purpose at all times vbeing to better its quality, if possible, rather than to decrease its cost. In equipping your plant with Old Colony Rope you are getting absolutely the best that money can buy. GEO. B. CARPENTER (SL CO. 200, 202, 204, 206, 208 S. Water St., Chicago Our 900-page gener&l c&t&logue of mill supplies, etc., is \irortf ovirning. Send 25c. in steLinps. 