None
way, 425 Propeller efficiency, 300a guide blade, 299 race, 290, 293, 296 screw turbine, 299 shafting, 282 theoretical efficiency, 291 Propellers, diameter and pitch of, 322 of masted ships, 317 screw, 315 Properties of mild steel, 454 steam, 26, 27 Propulsion, 287 Protection box, 72 Pulsometer, 37 Ip Pulverising liquid fuel, 55c, 55d Pumping arrangements, 371-37U' engine, hydraulic, 381 Pumps, circulating, 371t feed, 392 Purves flue, 69 QUADRUPLE-EXPANSION engines, 14, 165, 223 screws, 300a Quantity of condensing water required, 265 water entering ship through hole, 362 RACE of propeller, 290, 293, 296 Radial paddle wheels, 295, 309 valve gears, 209, 211 Radiation, 23, 42 Radius rods of paddles, 313 Raising steam, 417 and getting under way, 416-427 Ramsbottom rings, 192, 234 Rankine's formula for efficiency, 59 Rapson's slide, 376 Rate of conduction of heat, 24 Rateau turbine, 2856 Ratio of cylinders, 218 Real ratio of expansion, 345 slip, 295 Receiver, 214 safety valve, 240 Rectangular boiler, 60 Reduced power working, 143 Reducing valves, 242 Reduction of boiler pressure, 127 pitch of propeller, 322 INDEX 499 Reefing paddle wheels, 310 Refrigerating chamber, 409 engines, 407 Regulating valve, 166 Relative volume of steam, 145 Release, instant of, 174 Relief rings for slide valves, 190, 192 adjustment, 447 Reserve fresh-water tank, 257, 363 Resistance augmentation, 296, 297 of ships, 287 Retarders, 40, 52 Return connecting-rod engines, 7 tube boilers, 63 Reversibility with single fixed eccentric, 179 Reversing arrangements, 197 valve, 207 of steering engine, 37 Richards' indicator, 337 Riggs' propeller, 298 Rotary engines, 160, 2856 motion, 268 Rotor shaft glands, 285n Rudder gears, 376 posts, 320 Rusden & Eeles' oil burners, 55a SAFETY arrangements, Belleville, 80 for steering gear, 375 valve lifting gear, 106, 109 valves, 106 blowing, 424 receiver, 240 springs, 109 tests, 108 Saponification, 128 Saturated steam, 145 Save-all pump, 37 11 Scale, formation of, 244 Scavenging, 4 15 h Screw engines, 10 propeller, 6, 295, 315 turbine propeller, 299 Screwing up gear for glands, 236 Scrooping of cylinders, 426 Sea injection, 246 water composition, 244 Sediment chamber, Belleville, 78 See's ash ejector, 388 Self closing furnace doors, 73 stop valves, 118 Sensible heat, 25 Sensitive hydrometer, 118 Separate circulating pumps, 257 Separator, 12 , 124 column, 385 Serve tubes, 52 Setting slide valves, 190 Shaft brackets, 333 Shaft couplings, 282 glands of turbines, 285n horse power, 361o Shafting, stern, 327 Shape of propeller blades, 320 Sheave, eccentric, 195 Shell, cylinder, 225 Shorteniug the link, 347 Side lever engines, 2 Siemens-Martin steel, 454 Silent blow-off to condenser, 424 Siren, 405 Situation of circulating pump, 37 Ij Size of voice pipes, 407 Slide diagrams, Zeuner's, 182-184 jacket, 172 drains, 239 relief rings, 190, 192 valve setting, 190 without lap or lead, 178 wrongly set, effect, 347 valves and fittings, 172, 188 Slip of propeller, 296, 297 Slotted link, 199 Sluice valves, 371 Smoke, 39 box, 100 Snow box, 409 Sole plates, 276 Solid bar link, 193 Specific gravity of petroleum, 54 volume of steam, 145 Speed of screw, 296 turbines, 286a ' Speedy ' boiler, 95 Spiegeleisen, 454 Spindles of under-water valves, 260 Splinter deck, 47 nets, 104 Spreading fires, 418 Spring ring for piston, 231 Springs for safety valves, 109 Stage expansion engines generally, 162 Stand pipe, 106, 111 Starting valves, 239 and reversing arrangements* 197 stopping, 421 gear, Stay tubes, 63 Steady pipe, 111 Steam blast, 45 collector, Belleville, 77, 78 efficiency of, 134 ejectors, 371n fog whistle, 404 injectors, 404 jacket, 155-159 jacketing, extent of, 156 openings too small, effect, 346 pipe arrangement, 120 drains, 124 pipes, auxiliary, 124 600 THE MAKINE STEAM-ENGINE Steam producing power of heating sur- face, 58 properties of, 26, 27 siren, 405 sprayers for oil, 55a starting gear, 204, 205 steering wheels, 375 trap, 124 turbine, 17, 2856 turret turning engines, 385 used for liquid fuel, 55d shown by diagrams, 352 Steel, 453 castings, 455 mild, 454 nickel, 456 plates, 129 Whitworth's fluid compressed, 455 Steering engine, 372 gear, hydraulic, 376 wheels, 375 Stern gland, 326 posts, 320 shafting, 326 tube, 325 bearing, 443 Stoking, 34 and economy of fuel, 431 Stone's underwater ash expeller, 389, 390 Stop valves, 105, 118, 120 Strength of cast iron, 452 propeller blades, 322 Stresses on crank shafts, 483 String, indicating, 350 Stuffing boxes, 236 Suction pipe to double bottom, 37 1/, Superheated steam, 146, 158, 159, 161 Superheaters, abandonment of, 159 Supply of feed-water, 427 Supporting weight of horizontal pistons, 235 Surface blow-out valves, 106, 116 condensation, 10, 245, 247 condenser details, 247 introduction of, 245 Suspension furnace, 69 Switch board, 411 TABLES of properties of steam, 26, 27 Tail piece, 324 rod, 236 Taking charge of watch, 428 diagrams, 337 Tandem engines, 213, 218, 222 Tank, feed, 2566 hot well, 2566 reserve, 257 Telegraphs, 406 Telemotor, 375 Telescopic funnels, 100 Tell-tales, 407 Temperature, 22 effect on dynamo, 414 of gases in funnels, 40 feed-water, 426 products of combus- tion, 39, 40 Tempering, 453 Test cocks, 106, 114 Testing boiler water, 118a Tests of boilers, 448 safety valves, 108 Theoretical diagrams, 340, 353-356, 459 of stage expan- sion engine, 353-356 of triple-expan- sion engines, 472 efficiency of jet propeller, 291 Thermal unit, 23 Thornycroft boiler, 95 Three-cylinder compound engines, 12, 213 Throttle valve, 166 Throttling, 142 Through tube boilers, 67 Throw of eccentric, 176 Thrust arrangements, 330 block, 284, 332 curves, 302 forces of turbines, 285* indicated, 302, 303 of propeller, 291 Tipping of turbine blades, 286/, 2864 Tongue pieces, 231 j Topping faes, 418 Torpedo boat boilers, 69 gunboat boiler, 71 machinery, 385-387 Torsion meter, 36 la Total heat of combustion, 37, 38 evaporation, 28 Trailing of shafts, 361A j Transfer of heat, 23, 25 Trap, steam, 124 Trials of compound versus simple engines, 163 double versus triple-com- pound engines, 164, 165 paddles versus screws, 6 Triple-expansion engines, 12, 164, 216- 222 screws, 300a Trunk engines, 7 Tube ferrules, 65 heating surface, 58 plates, 63 Tubes, condenser, 251 stay, 63 INDEX 501 fabulous boilers, 74-99 Turbine adjusting gear, 286o adjustments, 286? balancing, 286d bearings, 28Ga blades, 286*, 286m bye pass valves, 286» construction, 286 i cruising, 286fc details, 285/ dummy pistons, 285J low pressure, 285A machinery advantages, 286# manoeuvring arrangements, 28<5A screw propeller, 299 steam engine, 2856 Turning engines, 274 wheels and gear, 274 Turret turning engines, steam, 385 Twin screws, 300 Two-cylinder compound engines, 212 UNDBB-WATEB valves, 258 Undulation of indicator pencil, 349 Unequal contraction in cooling, 451 Uniform wetness, curve of, 361 Unit of heat, 23 work, 19 United States packing, 238 Uptake, 100 ' Useful expansion, limit of, 139- 141 Use of gearing for screw engines, 6 lime, 79, 129 oil, 429 water service, 442 Usual arrangement of triple expansion engines, 218 VACUUM, amount of possible, 253 gauge, 263 in steam turbines, 286/ line, 135 Values of clearance, 344 Valve-arrangement of Weir's feed-pump, 389 circles, 182-185 gears, radial, 209 Valves, air pump, 254 feed, 105, 115 Kingston, 258 under-water, 258 Vaporisers, 415<7 Varieties of furnace tubes, 69 links, 199 Ventilating engines, 388 Ventilation of coal bunkers, 448 stokehold, 101 Vertical air-pump, 252 engines, 12 Vibration of indicator pencil, 349 Virtual angle of advance, 202 eccentric radius, 202 Vis-viva, 289 Voice-pipes, 406 WARMING cylinders, 423 engines, 419 turbines, 286w Waste of fuel, 39 heat from blowing off, 267 Watchkeeping, 428 Water ballast, 37 Ir gauges, 106, 110, 111, 126 in cylinders, 359 jet propulsion, 291, 292 out of gauge glass, 437 pressure tests, 448 required for condensation, 265 service, 282 use of, 442 tube boilers, 74, 99 corrosion of, 133 turbine, theory of, 2S5d used per horse-power, 352 Water-tight bulkheads, 362 compartments, 362 doors, 364-368 Watt, James, 144, 162 Wave making resistance, 287, 288 Waves, resistance of, 289 Weathering of coal, 449 Weight of machinery, 17 Weir's evaporator, 402 feed heater, 393& pump, 392 independent air pump, 255 regulator, 3936 Welding, 452 Wet bottom boiler, 72 coal, avoidance of, 449 steam, 146 Wetness, curve of, 361 Wheels, immersion of, 309 steering, 375 Whistle, fog, 404 White cast-iron, 450 metal bearings, 282, 458 White-Foster boiler, 93 Whitworth's fluid compressed steel, 455 Width of floats, 309 Wind resistance, 289 Windings, field magnet, 412 Wire drawing during exhaust, 342 on steam side, 341, 342 ropes for steering gear, 375 Wooding fires, 418 Work, 19 during expansion, 149 principle of, 290 502 THE MARINE STEAM-ENGINE Working fluids for internal combustion engines, 415a steam, 352, 353 Workmanship in boilers, 73 Wrought-iron, 452 YARROW boiler, 92 Yarrow Schlick and Tweedy system, 221r ZERO line, 135 Zeuner's valve diagram, 182 Zinc, 458 protectors, 133, 260, 458 Zoelly turbine, 2856, 28666 PRIXTJD BV SPOTTISWOODE AND CO.