MECHANICS OF THE HOUSEHOLD

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.

[v]

INTRODUCTION

This book is intended to be a presentation of the physicalprinciples and mechanism employed in the equipment that hasbeen developed for domestic convenience. Its aim is to provideinformation relative to the general practice of domestic engineering.The scope of the work is such as to present: first, theuse of household mechanical appliances; second, the principlesinvolved and the mechanism employed. It is not exhaustive,neither does it touch many of the secondary topics that might bediscussed in connection with the various subjects. It does,however, describe at least one representative piece of each typeof household apparatus that is used in good practice.

The mechanism used in the equipment of a modern dwellingis worthy of greater attention, as a course of study, than ithas been heretofore accorded. The fact that any house, ruralor urban, may be provided with all domestic conveniences includedin: furnace heating, mechanical temperature regulation,lighting facilities, water supply, sewage disposal and otherappliances, indicates the general use of domestic machinery ingreat variety. To comprehend the application and adaptabilityof this mechanism requires a knowledge of its general planof construction and principles of operation.

Heating systems in great variety utilize steam, hot water,or hot air as the vehicle of transfer of heat from the furnace,throughout the house. Each of these is made in the form ofspecial heating plants that may be adapted, in some specialadvantage to the various con

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