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CONTENTS.
xv
Page
§ 118. Crossheads and Guides 454
119. Click-wheels and Gear 455
120. Reversed Motion in Free Click-trains 459
121. Ratchet-trains 461
122. Brakes and Brake-gear 467
123. Engaging and Disengaging Gear 468
124. Recapitulation of the Methods used for Stopping and Setting in Motion 472
125. Pipes, Steam and Pump-cylinders, Pistons and Stuffing-boxes 473
126. Valves 473
127. Springs as Constructive Elements 480
128. General Conclusions from the Foregoing Analysis 480
Chapter XII. The Analysis of Complete Machines 486
§ 129. Existing Methods and Treatment 486
130. The Tool 490
131. Kinematic Nature of the Tool 493
132. The Receptor 497
133. Kinematic Nature of the Complete Machine 502
134. Prime-movers and Direct-actors 505
135. The Principal Subdivisions of Complete Machines. Descriptive Analysis 510
136. Examples of the Descriptive Analysis of Complete Machines 516
137. The Relation of Machinery to Social Life 522
Chapter XIII. Kinematic Synthesis 527
§ 138. General Nature of Kinematic Synthesis 527
139. Direct Kinematic Synthesis 528
140. Indirect Kinematic Synthesis 529
141. Diagram of the Synthetic Processes 531
142. Synthesis of the Lower Pairs of Elements 532
143. The Simpler Higher Pairs 533
144. Synthesis of Toothed-wheel Pairs 535
145. Cam Pairs 537
146. Recapitulation of the Pairs of Rigid Elements 538
147. Pairs of Elements containing Tension-Organs 539
148. Pairs of Elements containing Pressure-Organs 542
149. Recapitulation of the Pairs containing Flectional Elements 544
150. Determination of the Simple Chains 545
151. The Screw Chain 546
152. Cylinder-Chains 549