them more easily understood by the non-mechanical reader, they are as accurate as relates to proportion of parts as the best engineering drawings and all represent existing mechanisms which are in daily use. The important elements to which attention is directed in the text are clearly designated by arrows and named in the illustration, so the main object of making them intelligible has been attained without sacrificing correct proportion. Any suggestions from readers for improving this work and calling attention to errors, either of commission or omission, will be welcomed by the publisher and the author. This treatise has been entirely revised and all new improvements in automobile engine and chassis design have been included. Attention is directed to the new lesson on electric starting and lighting systems. VICTOR W. Pagé. February, 1917. SYNOPSIS OF LESSONS 1—The Modern Gasoline Automobile and Its Principal Parts 17 2-Action of Two and Four Stroke Cycle Motors..... 3—Parts of Gasoline Motors and Their Functions.. 4-Fuels for Automobile Motors ... 5—Theory of Carburetion and Its Application 6—Types of Carburetors and Their Action... 7—How Gas is Exploded in Cylinder to Produce Power. 141 8-Parts of Ignition Systems and Their Purposes.. 9-Current Producers, Batter.es, Dynamos and Magnetos ... 164 10—Low Tension Ignition Systems. 11-Hgh Tension Ignition Systems. 12—Methods of Lubricating the Automobile Power Plant..... 210 13—Cooling the Gasoline Engine by Air..... 14-Typical Water Cooling Systems... 15—Use of Clutch and Var ous Types Described. 16—The Friction Transmission.... 17—The Individual Clutch Change Speed Gear... 18-Action of Sliding Gear Transmissions. 19-Methods of Drive to Rear Wheels ... 20-Differential Gear Construction and Operation.. 22—Automobile Frames and Springs.. 23—The Steering Gear and Front Axle. 25-Automobile Bearings and Their Care... 26w-How to Start and Control Automobile Power Plants ..... 425 LEBRONS PAGE 433 448 456 . 465 487 494 27—Methods of Speed Changing Outlined.. 521 534 545 565 583 . 619 683 ACKNOWLEDGMENT The writer wishes to acknowledge his indebtedness to a number of the leading automobile and parts manufacturers who furnished instruction books and photographs from which a number of the illustrations used were taken and which also offered valuable suggestions for treatment of this subject. While in nearly all cases credit is given in connection with illustration to the user or maker of the construction shown, general credit is due to the following manufacturers whose co-operation has made the production of a complete and authoritative work possible: Packard Motor Car Ço., Detroit, Mich. |