All About Engines

348 Index Geipel trap, 97 Gland, the, 7 Gnome engine, the, 225 et seq. Governors, 11, 250; centrifugal, 282; Crossley, 188 ; emergency, 162 ; gas engine, 188, 190 ; Hartnell, 122 ; Mirrlees Diesel, 240; Pickering, 122; Porter, 122; safety, 161 ; throttling, 188 ; turbine, 161 et seq., 171 Gradients, 271 Grate area, 261 Gravitational constant, 153 Gravity, centre of, 156 “ Great Bear,” the, 220, 259 Great Eastern, the, 276 Great Western Railway, 261 Green engine, the, 228 Gusset stays, 59 H Hartnell governor, 122 “ Headers,” 75 Heat, conversion of, into energy, 309 ; latent, 310 ; measurement of, 307 ; sensible, 310; unit of, defined, 307, 310; working value of, 116, 311 Hero’s engine, 24, 148, 164 High-pressure, 146 et seq. “ Hit and miss ” governor, 188 Holland submarine, the, 247 Hopper, the, 85 Horizontal engines, 132 Horse-power, brake, 320 et seq. ; definition and principles of, 18 et seq.; heating surface of, 84 ; indi- cated, 317 et seq., 320 ; meaning of, 313 et seq. ; measuring, 313 et seq. Hornblower, Jonathan, 47, 51 Hornsby-Ackroyd engine, 232 Howe’s reversing gear, 257 Hull, Prof. E., 328 Humphrey’s explosion pump, 202 Huskisson, M.P., Mr., 257 Hydrokineter, Weir’s, 283 Hydraulic brake, 324 I Ignition in gas engines, 187 Impulse turbine, 148 et seq., 153 et seq. ; valve, 100 Indicated horse-power, 317 et seq., 320 Indicator, steam engine, 315 Induction coil, 187, 211 Injector, the, 102 et seq., 283 ; pump, 180 Intermediate cylinders, 281 Internal combustion engine, 183, 206, 23b 3i9> 340 Iron, 328 Itala engines, 213 J JET condensers, 137 et seq., 285 Jevons, Prof. S., 329 Joints, steam-tight, 106 et seq. Joule, J. p., 311 Joy’s valve gear, 267 K Kilowatts, 324 Kinetic energy, 309 L Lancashire; boiler, the, 63, 65, 99 Langley, Prof. S. P.( 224 Latent heat, 310 Lathom, M., 225 Leaf springs, 219 Leblanc, M. Maurice, 180 Lenoir’s engine, 183 Lever, bell-crank, 129 Link motion, Howe’s, 257 " Load,” the, 11 " Loco ” boiler, 66, 261 " Locomotion,” the, 256, 259 Locomotive, the, 251 et seq., 269 et seq.; articulated, 271 ; early, 253 ; fuel for, 272 ; general arrange- ment, 260; types, 269; wheel arrangement, 269