546 
Fluid friction, 460 
Fluids, 431 
Fly-wheels, 321 
Foot-pound, 24 
_ Foot-ton, 24 
Force, 18 
Force, moment of a, 20, 42 
Forced lubrication, 274 
Forced vortex, 443 
Forces, composition of, 34 
Forces, lettering of, 36 
Forces, parallelogram of, 34 
Forces, polygon of, 35 
Forces, resolution of, 34. 
Forces, resultant moment of a system 
of, 43 
Forces, triangle of, 34 
Formule for shafts, 82 
Forth Bridge, 132 
Fottinger’s torsion meter, 359 
Foundation bolt, 79 (Ex. 20) 
Fourneyron turbine, 493 
Fracture by shearing in tension and 
compression tests, 175 
Fracture by tension in torsion tests, 
176 
Fracture in tension test bar, position 
of, 173 
Framed structures, stress diagrams for, 
191 
Francis turbine, 493 
Francis’s formula, 452 
Free vortex, 443 
French truss, 203 
Frequency of contact of wheel teeth, 
376 
Friction and lubrication, 260 et seq. 
Friction angle, 261 
Friction axis of a link, 271 
Friction circle, 270 
Friction, fluid, 460 
Friction of an axle, 270 
Friction of band on pulley, 277 
Friction of governors, 334 
Friction of pivots and collars, 265 
Friction of screws, 262 
Friction of sliding keys, 275 
Friction ratchets, 410 
Function of a governor, 329 
Functions of 7,1 
Funicular polygon, 36, 38 
pant on fluctuation of energy 
‘in, 
Gases, ist. 
Gearing, belt, rope, and chain, 363 
et seq. 
Gearing, toothed, 375 et seq. 
Gears, change speed, 389 
Geometrical mean, 3 
Geometrical progression, 3 
Girard impulse wheel, 489 
Girder, bow-string, 233 
APPLIED MECHANICS tag 
Girder, box, 216 
Girder, fish-bellied, 216 
Girder, hog- -backed, 216 
Girder, lattice, 232 
Girder, Warren, 231 
Girder, wind, 246 
Girders, braced, 231 et seq. 
Girders, plate, 214 et seg. 
Governors, 329 et seq. 
Gradient, hydraulic, 463 
Gramme, 2 ‘ 
Gravity, accelerating effect of, te 
Gravity, centres of, 45 
Guest’s formula for shafts, 145 
Gutermuth valve, 508 
Hardening, 182 f 
Hardening effect of overstraining, - 
Harmonic motion, simple, 296 — 
Hat-leather packing, 520 
Head, artificial, 433 ~ 
Head race, 485 2 
Heat, mechanical equivalent 8h a 
Helical springs, 83 
Helical teeth, 386 
Hog-backed girder, 216 
Hollow shaft, 82 
Hooke’s joint, 405 
Hooke’s law, 66 
Hoop tension, 76 
Horse-power, 26 
Howe truss, 232 
Humpage’s gear, 392 
Hunting cog, 376 
Hurdy-gurdy, 487 
Hydraulic accumulator, 521 
Hydraulic crane, 527 
Hydraulic gradient, 463 
Hydraulic intensifiers, 524 
Hydraulic lifting-jack, 526 
Hydraulic mean depth, 461 : 
Hydraulic press for making lead p’ 
525 
Hydraulic preemies machines, 520¢ 
Hydraulics, 1 ms 
Hydraulics, general principles of, 
et seq. 
Hydrodynamics, 1 
Hydrostatics, 1, 431 et seq. 
Hyperbolic logarithms, 4 
Hypocycloid, 11 
Impact of jet oncup, 479 
Impact of jet on flat vane, 475 
Impact of jet on succession of va 
477 
Impulse, 19 
Impulse turbines, 493 ; 
Inch-pound, 24 i 
Inclined plane, efficiency of, 262 
Indefinite integral, 7 - 
India-rubber disc valve, 508 
Indicator diagrams, 313 — 
