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- Dead-points, 186.
- Definition of the machine, 35, 503, 585.
- Degrand, 381.
- De la Hire, 154, 594.
- Delivery-gear, 513.
- Deprez's reversing gear, 320.
- De Sarques, 154.
- Descriptive analysis, 511.
- Development of ruled surfaces, 81.
- Diagram of synthetic processes, 531.
- Differential gear, 431.
- Differential screws, 547.
- Direct-acting engine, 345.
- Direct-actors, 507.
- Direct kinematic synthesis, 528.
- Director or directing-gear, 344, 512.
- Disc-engine, 385, 609.
- Disc-crank, 305.
- Discovery and invention, 243.
- Disengaging-gear, 468.
- Dividing machine, 558.
- Donkey-engine, 374.
- Double-action, 452.
- Double-crank, 285, 382.
- Double-cylinder engine, 188, 200, 289.
- Double-lever, 285.
- Double-slider chain, 313.
- Double-wood, 204.
- Doubling of chains, 568.
- Drag-link coupling, 71.
- Driver, 499, 511.
- Driving-link, 272.
- Duaugle, 116.
- Dübs locomotive coupling, 292.
- Duclos, 393.
- Dudgeon, 407.
- Duncan, 391.
- Dundonald, see Cochrane.
E.
- Eade's pulley-block, 577.
- Early treatment of machines, 9.
- Eccentric, 306.
- Elements, pairs of, 43, 86, 532, 538, 544.
- Elements, fixture of a pair of, 467, 472.
- Elements, separation of, 469, 471, 472.
- Elliptic chuck, 316, 336.
- Emery, 362.
- Endless belt, 215, 452.
- Endless screw, 83.
- Energy, see Storing.
- Engaging-gear, 468.
- Envelopes, 42, 87.
- Envelopes, in form-changing machines, 493.
- Epicycloidal teeth, 153.
- Epicyclic chamber-wheel gear, 427.
- Epicyclic trains, 427.
- Equidistant curves as profiles, 157, 178.
- Ericsson, 378.
- Escapements, 463.
- Euler, 15.
- Eve, 422.
- Evrard, 416.
- Expansion of elements, 304.
F.
- Fabry, 409.
- Face-wheel, 83.
- Fast click-train, 457.
- Feathers on shafts, 91.
- Feed of a machine, 513.
- Field of restraint, 99.
- Field of sliding, 99.
- Field of turning, 103.
- Figures of constant breadth, 129.
- Fire-drills, 205.
- Fire, early use of, 205.
- Fire production, 597.
- Fixture of a pair of elements, 467, 472, 549.
- Fixed closure, 484, 549.
- Fixed-couplings, 445.
- Fixed link, 47, 271, 450.
- Fixed link, omission of, 260.
- Flange coupling, 445.
- Flectional elements, 173, 181, 183.
- Flectional elements, closure of, 183.
- Flectional elements, table of pairs with, 544.
- Fly-wheel, 187, 238, 453.
- Fluids in pure mechanism, 12, 176.
- Fluid click-trains, 474.
- Fluid ratchet-trains, 476, 479.
- Force-closure of axoids, 171.
- Force-closure of chains, 187, 278.
- Force-closure, disuse of, 226.
- Force-closure in early machines, 227, 233.
- Force-closure of pairs of elements, 169.
- Forced joints, 443.
- Form-changing machines, 493, 499, 503.
- Form-symbols, 253.
- Formulæ, contracted, 263.
- Formulæ for chains, 258.
- Formulæ for compound chains, 270.
- Formulæ for links, 255.
- Formulæ for mechanisms, 270.
- Formulæ for pairs, 255.
- Formulæ for pressure-organ chains, 268.
- Formulæ, general, 272 .
- Formulæ, special, 272.
- Fowler's clip-drum, 541.
- Frame (in a crank-chain) 284.
- Framing, 447.
- Free click-trains, 457.
- Friction, 171, 595.
- Friction-couplings, 470.
- Friction-wheels, 164, 171, 452.
- Funicular machine, 281, 605.
- Fusee, 539, 540.
