The Theory of Machines Th Principles Cf Mechanism Elementary Mechanics of Machines, Vol. 1 (Classic Reprint)

The present treatise dealing with the Principles of Mechanism and Mechanics of Machinery is the result of a number of years experience in teaching the subjects and in practising engineering, and endeavors to deal with problems of fairly common occurrence. It is intended to cover the needs of the beginner in the .study of the science of machinery, and also to take up a number of the advanced problems in mechanics. As the engineer uses the drafting board very freely in the solution of his problems, the author has devised graphical solutions throughout, and only in a very few instances has he used formulae involving anything more than elementary trigonometry and algebra. The two or three cases involving the calculus may be omitted without detracting much from the usefulness of the book. The reader must remember that the book does not deal with machine design, and as the drawings have been made for the special purpose of illustrating the principles under discussion, the mechanical details have frequently been omitted, and in certain cases the proportions somewhat modified so as to make the constructions employed clearer. The phorograph or motion diagram has been introduced inC hapter IV, and appeared in the first edition for the first time in print. It has been very freely used throughout, so that most of the solutions are new, and experience has shown that results are more easily obtained in this way than by the usual methods. As the second part of the book is much more difficult than the first, it is recommended that in teaching the subject most of the first part be given to students in the sophomore year, all of the second part and possibly some of the first part being assigned in the junior year. The thanks of the author are due toM r. J. H. Parkin for his careful work on governor problems, some of which are incorporated, and for assistance in proofreading;
(Typographical errors above are due to OCR software and don't occur in the book.)