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CHAPTER V.-OF AGGREGATE COMBINATIONS IN MECHANISM.
SECTION I.-General Explanations.
225. Aggregate Combinations De-
fined,
235
226. General Principle of their
Action,.
227. Aggregate Combinations Ter-
minating in a Primary Piece, 235
228. Shifting Trains,
229. Methods of Treating Problems
Respecting Aggregate Com-
binations,
230. Aggregate Combinations Classed
according to their Purposes-
Aggregate Velocities-Aggre-
gate Paths,
231. Converging Aggregate Com-
238
239
240
SECTION II.-Production of Uniform
Aggregate Velocity-Ratios.
232. Differential Pulley and Windlass, 240
233. Compound Screws, .
238. Aggregate Linkwork in General, 248
239. Harmonic Motion in Aggregate
250
Linkwork,
240. Link-Motions for Slide-Valves, 253
241. Differential Harmonic Motions, 260
SECTION IV.-Production of Curved
Aggregate Paths.
242. Circular Aggregate Paths,
243. Epitrochoidal Paths,
244. Rolled Paths in General,
245. Elliptic Paths Traced
Rolling,
246. Trammel,
261
. 262
265
by
5 266
267
247. Feathering Paddle-Wheels, . 270
248. Spherical Epitrochoidal Paths-
Z-Crank,
SECTION V.-Parallel Motions.
249. Parallel Motions in General,
250, Exact Parallel Motions,
251. Approximate Grasshopper Par-
allel Motion,.
272
274
.
242
234. Epicyclic Trains with Uniform
275
243
252. Watt's Parallel Motion-General
Description,
SECTION III.-Production of Varying Aggregate Velocity-Ratios.
235. Reciprocating Endless Screw,
236. Epicyclic Trains with Periodic
253. Watt's Parallel Motion-Rules
for Designing,
277
246
254. Watt's Parallel Motion-Extent
of Deviation..
281
236A. Sun-and-Planet Motion,
237. Eccentric Gearing, .
247
255. Tracing Approximate Circular
Arcs by the Parallel Motion,. 283
256. Roberts's Parallel Motion,
285
CHAPTER I.-SUMMARY OF GENERAL PRINCIPLES,
275. Nature and Division of the Sub-
282. Centre of Gravity-Moment of
Weight,
313
314
328
283. Centre of Pressure,
284. Centre of Buoyancy,
329
285. Resultant of a Distributed
289. To Measure any Plane Area, 331
290. To Measure the Volume of any
Rules for the Mensuration of Figures and finding of Centres of Magnitude.
295. Centre of Magnitude of a
Curved Line,
336
Curve, .
333
296. Special Figures,
292. Centre of Magnitude,
334
SECTION I.--Of Resistance and Work.
CHAPTER II.-OF THE PERFORMANCE OF WORK BY MACHINES.
311. Work Performed against Fric-
313. Summation of Work of Accele
ration-Moment of Inertia,
357
314. Centre of Percussion-Equiva-
301. Work in Terms of Angular
lent Simple Pendulum-Equi-
valent Fly-wheel, .
Reduced Inertia,
361
362
316. Summary of Various Kinds of
Work,.
SECTION II.-Of Deviating and
Centrifugal Force.
Work,
343
317. Deviating Force of a Single
306. Representation of Work by an
Body,
363
Arca,
345
318. Centrifugal Force,.
364
307. Work against varying Resist-
319. Revolving Pendulum,
ance,
308. Useful Work and Lost Work,
309. Friction,
348
321. Resultant Centrifugal Force,
365
SECTION III.-Of Effort, Energy,
Power, and Efficiency.
Art.
323. Effort,
324. Condition of Uniform Speed,
325. Energy-Potential Energy,
326. Equality of Energy Exerted and
Work Performed, .
327. Various Factors of Energy,
328. Energy Exerted in producing
Acceleration,.
329. Accelerating Effort,.
Page
368
369
370
371
. 371
330. Work during Retardation-
Energy Stored and Restored,. 373
331. Actual Energy.
373
374
. 375
332. Reciprocating Force,
333. Periodical Motion,
334. Starting and Stopping,
. 376
$35. Efficiency,
376
341. Prony's Friction Dynamometer, 383
342. Morin's Traction Dynamometer, 383
343. Morin's Rotatory Dynamometer, 386
344. Torsion Dynamometer,
345. Elasticity of Spiral Springs,
346. Steam-Engine Indicator,.
347. Integrating Dynamometers,
348. Measurement of Friction,.
Addendum to Article 309, page 348.
Friction of Pistons and Plungers, 399
CHAPTER III.-OF REGULATING APPARATUS.
349. Regulating Apparatus Classed-
Brake-Fly-Governor,
SECTION I.-Of Brakes.
350. Brakes Defined and Classed,
351. Action of Brakes in General,
352. Block-Brakes,.
SECTION III.-Of Governors.
359. Regulator,
389
.390
. 394
. 335
400
. 410
360. Pendulum-Governors,
. 411
€ 400
361. Loaded Pendulum-Governor,
362. Parabolic Pendulum - Gover-
413
353. Brakes of Carriages,
354. Flexible Brakes,
402
363. Isochronous Gravity-Governor, 415
364. Fluctuations of Isochronous
355. Pump-Brakes,
356. Fan-Brakes,
406
SECTION II.-Of Fly-Wheels.
357. Periodical Fluctuations of Speed, 407
358. Fly-Wheels, .
368. Pump-Governors,
421
409
369. Fan-Governors,
CHAPTER IV.-OF THE EFFICIENCY AND COUNTER-EFFICIENCY OF PIECES,
COMBINATIONS, AND TRAINS IN MECHANISM.