Principles of Mechanism: Designed for the Use of Students in the Universities, and for Engineering Students GenerallyCambridge University Press, 25/11/2010 - 484 páginas Robert Willis (1800-1875) was a scientist, inventor and architectural historian of international repute. As Jacksonian Professor of Natural and Experimental Philosophy at Cambridge, he demonstrated specially made mechanical devices to huge audiences. First published in 1841, Principles of Mechanism provided the theory behind the demonstrations. He defined mechanism as the means by which any relations of motion could be realised. The book was extremely influential, with all books in English, French, and German on the subject for the next generation adopting Willis' classification and nomenclature. He worked closely with William Whewell, whose Mechanics of Engineering was published in the same year. These two books established the science of mechanism, and provided study materials for the rapidly growing engineering profession. The work became a standard textbook for engineering and mathematics students, with a second edition issued in 1870. |
Índice
CONTENTS OF THE SEPARATE ARTICLES | 1 |
On Trains of Mechanism in general Part I | 14 |
CLASS | 31 |
General Principles 42 Axes parallel Cylinders 43 | 39 |
Rolling surfaces 5057 Toothedwheels in general | 58 |
Arts 98 99 Spurwheels 100105 To find the least number of teeth | 106 |
Arts 113116 Spurwheels 117120 Length of teeth and Addendum | 121 |
Arts 130132 General principles 133136 Constructions and formulæ | 137 |
Arts 217222 General formulæ 223 Idlewheel 224 Marlborough | 233 |
Class B Directional Relation Constant Chap 8 | 239 |
Arts 258270 Theory of rolling curves 271273 Practical applica | 284 |
Directional Relation Changing Chap 9 | 286 |
Arts 352358 Cams 359 Swashplate 360362 Cylindrical cams | 290 |
Pin and Slitlever vide Art 364 291 Endless screw | 295 |
General solution vide Art 325 301307 Hookes joint | 308 |
On Mechanical Notation Chap 10 | 332 |
Chap 1 | 154 |
Arts 149153 Bevilwheel teeth 154 157 Facewheel geering | 158 |
CLASS A DIVISION B BY SLIDING CONTACT | 166 |
Class A JDirectional Relation Constant | 168 |
Arts 160165 Cams 166169 Screws 170173 Endless screws | 176 |
Arts 177 178 Bands in general 179 Material of bands 180 Form | 188 |
Arts 195 196 General principles vide Art 326 Dead points | 197 |
Trains of Elementary Combinations ClassA Chap 7 | 202 |
Arts 208210 General principles 211214 Tackles 215 | 215 |
PART THE SECOND | 338 |
On Aggregate Combinations Part II | 346 |
Arts 390 391 Long screw long pinion c 392 Travelling pully | 352 |
By Epicyclic Trains | 361 |
ON COMBINATIONS FOR PRODUCING AGGREGATE PATHS | 394 |
On Adjustments Part III | 417 |
Changewheels 460 fixed to the axes 461 with idlewheels | 437 |
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Principles of Mechanism: Designed for the Use of Students in the ... Robert Willis Visualização integral - 1841 |
Palavras e frases frequentes
addendum angle angular velocity ratio arc of action arrangement axes axis center of motion circumference clock cogs combination cone conical surface connexion constant contrivance corresponding crank cylinder describing circle detent diameter distance edge ellipse employed endless screw epicyclic train epicycloid equal equation example excentric extremity fixed fraction frustum geer given groove hyperboloid hypocycloid involute jointed last wheel line of centers link-work machine manner mechanism move number of teeth obtained opposite direction oscillation pair parallel pass path perpendicular piece pinion pitch circle pitch line plane point of contact position produce pully rack radial radii radius ratchet-wheel reciprocating respectively revolution revolve rods roller rotation round shew shewn side sliding slit solid of revolution space spur-wheel supposed surface synchronal rotations tangent termed tion toothed wheel values versin wheel-work