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- Lever, the, 276.
- Lever, first use of, 219, 224.
- Levers, 286, 454.
- Lever-crank train, 285, 378.
- Lift-wheel, 269, 272.
- Limaçon, as centroid, 197.
- Link, kinematic, 46.
- Link, fixed, 47.
- Link-formation, 441, 443.
- Link motion, 311.
- Link, reversing, 95.
- Linkworks, 590.
- Locks, 466.
- Locomotive, 491.
- Loose couplings, 445, 469.
- Loose ring, 91.
- Lower pairs of elements, 116, 532,
- Lüdecke, 425.
M.
- Machinal and Kosmic systems, 244.
- Machine, Ampère's definition of, 11.
- Machines, analysis of, 52, 510, 516.
- Machines, definition of, 35, 50, 503, 585.
- Machines, natural, 51.
- Machines, study of, 37.
- Machines, synthesis of, 52.
- Machino-facture, 525.
- Main train of a machine, 512.
- Maltese cross-wheel, 564.
- Maudslay, 552, 576.
- Mechanical powers, 275, 604.
- Mechanisms, analysis of, 284.
- Mechanisms (definition of), 47.
- Mechanisms, early treatment of, 9.
- Mechanisms (formation of), 50.
- Mechanisms, formulæ for, 270.
- Men as direct-actors, 508.
- Men as prime-movers, 500.
- Minari, 369.
- Mixed chains, 572.
- Molard, 390.
- Monge, 9, 17.
- Mono-kinetic pairs of elements, 175.
- Morey, 362.
- Morgan, 378.
- Morin, 14, 596.
- Morton's disc-engine, 609.
- Moseley, 487.
- Motor, 502.
- Mouline, 362.
- Moveable couplings, 445.
- Murdock, 356, 407.
- Myers, 368.
N.
- Nail-making machine, 490.
- Name symbols, 252.
- Napier, 353.
- Nasmyth's dividing machine. 558.
- Natural forces, early use of, 225.
- Newcomen's engine, 232.
- Nomenclature of trochoidal curves, 592.
- Noria, the, 229.
- Normal cross-block, 313.
- Normal double slider-chain, 313.
- Notation, kinematic, 247.
O.
- Oldham's coupling, 315, 446.
- Omission of links, 333.
- One-toothed wheels, 418.
- Ortlieb and White, 365.
- Oscillating-engine, 297, 35^
- Outer wheels, 431.
P.
- Pair-closed cam-trains, 460.
- Pair-closure, 179, 226.
- Pair-closure of chains, 292,
- Pairing, higher, in chains, 195, 559,
- Pairs of elements, 43, 86, 230.
- Pairs of elements, see Lower, Higher, &c.
- Panteg steel works, engines at, 189.
- Papin, 7.
- Pappenheim wheels, 403.
- Paragon pump, 347.
- Parallel cranks, 287.
- Parallel curves as profiles, 157.
- Parallel motion, 3, 355, 576.
- Parallel trains, 432.
- Partner element, 258.
- Pattison, 348.
- Pawl, 455.
- Payton, 414.
- Penn, 347, 450.
- Peri-trochoids, 119, 592.
- Phoronomy, 56, 58.
- Picota, 219, 228.
- Pins, 444.
- Pin-teeth, 158.
- Pin-wheel and disc, 304.
- Pipes, 473.
- Piston, 473.
- Place-changing machines, 493, 499.
- Planet-train, Watt's, 234, 433, 575.
- Planet-wheel chain, 575.
- Plaustrum, 209.
- Plummer blocks, 447.
- Poinsot, 15, 80, 591.
- Point of restraint, 98.
- Point-paths, common, 126.
- Point-paths, concentral, 129.
- Point-paths, curtate, 126.
- Point-paths, homocentral, 129.
- Point-paths, prolate, 126.
- Point-paths as tooth profiles, 156.
- Point-paths of higher pairs, 121, 133.
- Polishing machines, 300.
