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Steam Engines PDF

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Presentedto the LIBRARY of the UNIVERSITY OF TORONTO by Mrs. Knowles in memory of Douglas W. Knowles /^/^ --^ ^ '/?/». .a/^ STEAM ENGINES ^ Qraw-O-lillBook (h.7m PUBLISHERS OF BOOKS FOR_/ Coal Age ^ ElectricRailwayJournal ElectricalWorld v EngineeringNews-Record AmericanMachinist v TheContractor EngineeringSMining Journal ^ Po"wer Metallurgical 6 Chemical Engineering Electrical Merchandising ENGINEERING EDUCATION SERIES A^ STEAM ENGINES PREPARED IN THE EXTENSION DIVISION OF THE UNIVERSITY OF WISCONSIN E. M. SHEALY ASSOCIATE FBOFESSOB OF STEAM ENQINEEBINQ THB TJinVKBSITT OF WISCONSIN First Edition Third Impression McGRAW-HILL BOOK COMPANY, Inc. 239 WEST 39TH STREET. NEW YORK LONDON: HILL PUBLISHING CO., Ltd. 6 d 8 BOUVERIE ST.,E. C. 1919 Copyright, 1919, by the McGraw-Hill Book Co., Inc. TKK MAI»r.K !•KKSS TOKIt 1*A PREFACE This book on Steam Engines was written to be used as a text- book for correspondence students in the University of Wisconsin Extension Division. It is the third of a series of three textbooks designed for those students who are pursuing a general course in Steam Engineering, the other two being "Steam Boilers" and "Heat." In this course in Steam Enginesweaimtoteach thefundamen- tal principles underlying the operation of the steam engine and to do this in as simple and nonmathematical a manner as possi- ble. This is particularly true with those parts which deal with thermodynamic principles. Enough of the practical features of steam engine operation has been given to illustrate the princi- ples, and it is hoped that operating engineers who take this course will be able to supplement from their own experience other applications of the principles presented. That part of the course dealingwith valve gears has beenmade more complete than other sections because our experience shows that operating engineers usually do not understand the valve gear mechanism of their engines as well as they do other parts. Most of the material in the chapter on Lubrication was fur- nished by Mr. R. P. Tobin, Chief of the Technical Department of the Vacuum Oil Company and we take this opportunity to express our thanksforhis aid. We wish to takethis opportunity also to thank Mr. J. C. White, Chief Operating Engineer forthe State of Wisconsin for very valuable suggestions as to the scope of the courseand theoutline to be followed, also for many useful hints and suggestions about writing the course, and for a care- ful and critical reading of the manuscript. E. M. SHEALY. Madison, Wis., November 12, 1918.

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