PART II—THE STEEL SQUARE

_By_ MORRIS WILLIAMS

_ILLUSTRATED_

CHICAGO

AMERICAN TECHNICAL SOCIETY

1917

COPYRIGHT, 1910, 1916, BY

AMERICAN TECHNICAL SOCIETY

COPYRIGHTED IN GREAT BRITAIN

ALL RIGHTS RESERVED

INTRODUCTION

On entering a building, almost the first thing that meets the eye is

the staircase and unconsciously it is made to serve as an indicator

of the quality of the architecture. If the design is poor or the

construction faulty, this flaw immediately gives the visitor a bad

impression of the whole building. Furthermore, stair-building is a

rather difficult subject and the principles involved are very little

understood, which is evidenced by the fact that the layouts as

furnished by architects in their plans are often improperly done.

Probably more mistakes occur in connection with the stairway of a

building than with any other construction feature. It is with the idea,

therefore, of giving a complete though simple presentation of the

construction methods as applied to standard design of staircases, that

this book has been prepared.

The article discusses straight and winding stairs, stairs with well

hole, layouts for curved turns, the proper proportions of rise and

width of tread, the design of hand railings and many other problems,

the solution of which will be found very useful.

Coupled with this article is a most instructive section on the Steel

Square, containing many applications of this useful instrument to roof

and other types of construction.

[Illustration: GREYROCKS, ROCKPORT, MASS.

Frank Chouteau Brown, Architect, Boston, Mass.]

CONTENTS

Stair-building and the steel square · 第 2 / 7 章