Note: Project Gutenberg also has an HTML version of this file which includes the more than 250 original illustrations. See 50846-h.htm or 50846-h.zip: (http://www.gutenberg.org/files/50846/50846-h/50846-h.htm) or (http://www.gutenberg.org/files/50846/50846-h.zip) Images of the original pages are available through Internet Archive. See https://archive.org/details/mechanicsofhouse00keen Transcriber's note: Text enclosed by underscores is in italics (_italics_). Text enclosed by equal signs is in bold face (=bold=). MECHANICS OF THE HOUSEHOLD * * * * * * _McGraw-Hill Book Co., Inc._ PUBLISHERS OF BOOKS FOR Coal Age ▼ Electric Railway Journal Electrical World ▼ Engineering News-Record American Machinist ▼ The Contractor Engineering & Mining Journal ▼ Power Metallurgical & Chemical Engineering Electrical Merchandising * * * * * * MECHANICS OF THE HOUSEHOLD A Course of Study Devoted to Domestic Machinery and Household Mechanical Appliances E. S. KEENE Dean of Mechanic Arts North Dakota Agricultural College FIRST EDITION Mcgraw-Hill Book Company, Inc. 239 West 39th Street. New York London: Hill Publishing Co., Ltd. 6 & 8 Bouverie St., E. C. 1918 Copyright, 1918, by the Mcgraw-Hill Book Company, Inc. INTRODUCTION This book is intended to be a presentation of the physical principles and mechanism employed in the equipment that has been developed for domestic convenience. Its aim is to provide information relative to the general practice of domestic engineering. The scope of the work is such as to present: first, the use of household mechanical appliances; second, the principles involved and the mechanism employed. It is not exhaustive, neither does it touch many of the secondary topics that might be discussed in connection with the various subjects. It does, however, describe at least one representative piece of each type of household apparatus that is used in good practice. The mechanism used in the equipment of a modern dwelling is worthy of greater attention, as a course of study, than it has been heretofore accorded. The fact that any house, rural or urban, may be provided with all domestic conveniences included in: furnace heating, mechanical temperature regulation, lighting facilities, water supply, sewage disposal and other appliances, indicates the general use of domestic machinery in great variety. To comprehend the application and adaptability of this mechanism requires a knowledge of its general plan of construction and principles of operation.