INDEX. PAGE .,cceleration . ..... : .................................... 3r, 33, 141, 145 Acceleration of Cable Car. .. .. .. .. .. .. ... .. .. .. 53 Acceleration of Connecting-rod. • .. .. .. .. .. .. .. .. .. 110 Acceleration of Cr oss-head. .. .. .. .. .. .. .. .. .. .... 102 Acceler.ation Curves.. .. .. .. .. .. .. .. .. s 1 Acceleration, Diagrams of.................. .................. 44, 49, 5 r Acceleration Images. .. .. .. .. .. .. .. .. r55, rs7 Acceleration of Piston. .. .. .. .. .. .. .. .. .. .. .. 102 Acceleration, Polar Diagrams of. .. .. .. .. .. .. .. .. .. .. 53, 155 Acceleration, Radial. .. .. .. .. .. .. ... .. .. 34 Acceleration, Resultant.. .. .. .. .. .. .. .. .. .. 37 Acceleration in Simple Har.monic Motion. .. .. .. .. .. .. 61 Acceleration, Uniform. .. .. .. ... .... .. 3 1, 49, 2 r 7 Accumulator, Hydraulic.. .. .. .. .. .. .. 269 Addition, Vector... .. .. .. .. .. .. .. 36 Adjustable Escapements. .. .. .. .. .. .. .. .. 237 Adjustable Flui.d Escapements....... : ............................. 274 Air.-compressor... .. .. .. .. .... .. .. .. .. .. 259 Air-pump, Edwards'... .. .. .. .. .. .. .. .. 269 Alteration of Mechanisms. .. .. .. .. .. .. .. 164 Ampere. .. .. .. .. .. .... .. 347 Amplitude of Simple Harmonic Motion. .. .. .. .. .. .. .. 58 Anchor Escapement.. .. .. .. .. ... .. .. .. .. .. 238 Anemometer. .... .. .. .. .. .. 283 Angle, Pitch... .. .. .. .. .. .. .. .. .. .. 278 Angular Velocity................................................ 27, 32 Angular Velocity in Ball-bearings.. .. .. .. .. .. .. .. .3J6 Angular Velocities, Composition of.. .. .. .. .. 37 Angular Velocity of Connecting-rod.. .. .. .. .. 110 Angular Velocity of Cylinder in Oscillating Engine.. .. ... ........ 11 2 Angular Ve•1. oc1ty· 1n"Hk oo es'J 01nt" ................................... 316 Angular Velocities in Quadric Crank-chain.......................... 73 Angular Velocity in Universal Joint................................ 316 Annular Whee . .. .. .... .. .. .. ... .. .. .. .. .. 203, 209 359 INDEX. PAGB Anti-parallel Cranks. .. .. .. .. .. .. .. 17s Archimedean Drill... .. .. .. .. .. .. .. .. ..... .. .. .. 279 Archimedean Spiral.. .. .. .. .. .. .. .. .. 57, 2 16, 327 Arc-lamps, Electric... .. .. .. .. .. .. .. .. .. .. .. .. .. 230 . Atk1nson 's "Cyel e " Gas-engine . .. .. .. .. .. .. • . .. ..... 16o Augmentation of Chains.. .. .. .. .. .. .. .. .. .. .. .. .. .. 166 Augmentation of Mechanisms.. .. .. .. .. ... .. .. 166 Automobile. .. .. .. .. .. .. .. .. .. .. .. ... 330 Auxiliary Circle. .. .. .. .. .. .. .. .. .. .. .. 58 Average Velocity................................................. 29 Axial Pitch.. .. .. .. .. .. .. .. .. .. .. .. .. 288 Axis, Twist.. .. .. .. .. .. .. .. .. .. ... .. 279, 294 Axis, Virtual. .. .. .. .. .. .. .. .. .. 12, 30 5 Axle-box. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 171 ."-.xode................................................... 12,.191,305 Axode, Twist . .. .. .. .. .. .. .. .. .. .. .. .. .. 294 Babbage's Notation ............................................... 349 Back Gear of Lathe.. .. .. .. .. .. .. .. .. .. .. .. 204 Balance, Roberval .. .. .. .. .. .. .. .. .. .. .. .. .. 86 Ball-bearings. .. .. .. .. .. .. .. .. .. .. .. 167, 334 Ball-bearings, Angular Velocity in.. .. .. .. .. .. .. .. ... 336 Ball-bearings, Relative Spinning in. .. .. .. .. .. .. .. 337 Ball-and-socket Joint.. .. .. .. .. .. .. .. .. .. .. 21 BaseCircle . .. .. .. .. .. ... .. .. .. .. .. .. .. 196 Bearings, Ball . .. .. .. .. .. .. .. .. ... .. .. .. 167, 334 Bearings, Roller . .. .. .. .. .. .. .. .. .. .. 331 Bearing, Thrust............................................ • .. 331, 334 Beam-engine..... ............................................. 75, 141 Bell-crank Levers.. .. .. .. .. .. .. .. .. .. .. 220 Belts..................... • ..... • • ... • • • • • • • • • • • • • . .. .. 24, 244 Belt, Crossed... .. .. .. ... .. .. .. .. .. .. 245 Belt-gearing between Non-parallel Axes............................ 254 Belt-gearing, Variable Velocity Ratio in...........--. .. .. .. .. .. 246 Belt-gearing, Velocity Ratio in.. .. .. .. .. .. .. .. .. .. 244 Belt, Length of.. .. .. .. .. .. .. .. .. .. .. .. 246 Belt, Open ...................... · · · . .. .. .. .. .. .. .. .. 245 Belt-shifter... .. .. .. .. .. .. .. .. .. .. .. .. .. 220 Belt Transmission. .. .. .. .. .. .. .. .. .. 255 Belt, Thickness of. .. .. .. .. .. .. .. .. .. .. 251 Betancourt..................... · · · · .......... · ....... · · · · ...... · 347 Bevel-gear. ................... • • . .. .. .. .. .. .. 317 Bevel-gear, Compound Reverted. .. .. .. .. .. .. .. .. 329 Bevel-gear Cutting-machines.. .. .. .. .. .. .. .. .. 323 Bevel-gear, Differential.. .. .. .. .. .. .. • . .. ... .. 328 Bevel-gear, Epicyclic.. .. .. .. .. .. .. .. .. .. .. .. .. 328 INDE,'<. 301 PAGE Bevel-gear, Velocity Ratio in. .. .. .. .. .. .. .. .. 329 Bevel-wheels... ............................ ; .................. 3o6, 318 Bevel-wheels, Internal. .. .. .. .. .. .. .. .. .. .. 319 Bevel-wheels, Involute Teeth in. .. .. .. .. .. .. .. .. .. 321 Bevel-wheels, Spiral. .. .. .. .. .. ... .. • .. .. .. .. .. .. 327 Bevel-wheels, Teeth of.... .. .. .. .. .. ... .. .. .. 320 Bevel-wheel Teeth, Setting out... .. ... .. .. .. .. 322 Bevel-wheels, Velocity Ratio in....... ........................,. .. .. 319 Bicycle, Front-driving, Gear of. .. .. .. .. .. .. .. 208 Bicycle, Free-wheel.. .. .. .. .. .. .. .. .. 228 Bilgram Gear-cutting Machine.. .. .. .. .. .. ... .. .. 323 Blade, Guide... .. .. .. .. .. .. .. .. .. .. .. .. .. .. 283 Block, Breech.. .. .. .. .. .. .. .. .. .. .. 282, 284 Blower, Root. .. .. .. .. .. .. .. .. .. ..... 267 Body, Restraining.. .. .. .. .. .. .. .. .. 181 Borgnis.................................. ; .......... • .. .. 347 Brake. .. .. .. .. .. .. .. .. .. .. .. ... 232 Brake, Friction.......... .. .. .. .. .. .. .. .. 232 Brake, Froude.. .... .. .. .. .. .. .. .. .. .. .. .. .. .. .. 271 Brake-block. .. .. .. .. .. .. .. .. .. .. .. .. .. 235 Brake, Strap.. .. .. .. ... .... .... .... .......... .. .. 272 Breech-block.. ... .. .. .. ... .. .. .. .. .. 282, 284 Bremme's Valve-gear....... · . .. .. .. .. .. .. ..... .. 143, 151 Bricard Straight-line Motion.. .. .. .. ... .. .. .. .. .. .. .. .. 94 Brotherhood Steam-engine.. .. .. .. .. .. .. .. .. .. .. 173 Buffer-spring. .. .. .. .. .. .. .. .. .. .. .. 259 Burmester, Professor... .. .. .. .. .. .. .. .. .. .. .. 183, 349 Cable-car. .. .. .. .. .. .. .. .. .. .. .. .. .. 53 Calibre. .. .. .. .. .. .. .. .. .. .. .. .. .. 282 Cam, Cy.:!oidal.... .. .. .. .. .. .. .. .. 226 Cam, Cylindrical. .. .. .. .. .. .. .. .. .. .. .. ... 215, 219 Cam, Globoidal ................................................... ··226 Cam, Involute. .. .. .. .. .. .. .. .. ... .. 219 Cam-pair....................................................... .. 213 Cam, Positive-motion.... .. .. .. .. .. .. .. .. .. .. .. 222, 226 Cam, Rotating.... .. .. .. .. .. .. .. .. .. .. .. 215 Cam, Sliding.. ... .. .. ... .. .. .... ... ... .... .. .. 21 5, 219 Cam-train. .. .. ...