This book is included in the Self Reliance Shelter section.
Preface to Second Edition The rapid disposal of the first edition of the "Steel Square and Its Uses," has rendered it incumbent for the publisher to issue a second and larger edition; and recognizing this condition, in connection with the fact that the work has met with more than a passing favor from those who make daily use of the Steel Square, it has been deemed necessary to make the present edition more useful by adding a number of solutions of mechanical problems by aid of the instrument, and other matters that will render the work more valuable to the operative mechanic. The Author has reason to, and does, feel pleased at the appreciation the working mechanics of this country have evinced for this work; and is assured, by the numerous letters, and other indications of good feeling he has received on all hands, that the present enlargement of the work has not been made unnecessarily or too soon. Feeling confident that the additions to the present edition will commend themselves to the toiling thousands who have daily use for the "Steel Square," the publishers send the enlarged work out to the public with a knowledge that it will be welcomed by those who are most interested in the subject of which it treats. New York, Jan. 1, 1883. Preface. Some time ago, the author of this little work contributed a series of papers on the Steel Square and Its Uses, to the American Builder, and since their appearance, he has received hundreds of letters from as many persons residing in various parts of the United States, Canada, Australia and New Zealand, in which the writers requested him to publish the papers in book form. Partly in compliance with these requests, and partly at the solicitation of personal friends, together with a knowledge that a cheap but thorough work of the kind, would be of service to all persons who have occasion to use a steel square, he has consented, with the aid of the present enterprising publishers, to issue the work as now offered. It is only of late years that American workmen have begun fully to understand the capabilities of the steel square; and even now, only a few of the best workmen have any idea of what can be accomplished with it when in skilful hands. It is not claimed that the rules and methods shown in this little work are either new or original; they have been known to advanced workmen for many years past; but it is claimed that they have never before been brought together and put in so handy a shape as in the present book; and it is further claimed that many of the rules herein illustrated and explained, have never appeared in print previous to the publication of the papers on the subject in the magazine referred to above. Should this little volume prove of service to the man who toils with axe, saw and plane, for his daily bread, and profitable to the publishers who risk their money on its publication, it will have fulfilled its mission, as designed by THE AUTHOR, New York, 1880. CONTENTS PART I. Preliminary Historical and Descriptive Description of the Square Board, Plank and Scantling: Measure Brace Rule Octagonal Scale Fence for Square Application of Square To lay out Rafters Hip Rafters, Cripples, etc. Backing for Hips Stairs and Strings Miscellaneous Rule Measurement Proportion of Circles Centering Circles How to Describe an Ellipse How to Describe a Parabola Bevels for Hoppers Bisecting Circles Cutting Spring Mouldings PART II. Theoretical Rafters Bevels and Lengths for Hips, Jacks and Purlins Divisions of Widths Bisection of Angles Diminishing Stiles PART III. Octagons To Find the Diagonal of a Square Polygons Circles To Lay out Angles Bevels of Hoppers Widths of Sides and Ends of Hoppers Corner Pieces for Hoppers Roofing Lengths and Bevels of Hip-Rafters Backing of Hips Irregular Hip Roofs Trusses Diameter of Circles Cutting Equal Mitres Theoretical Lengths PART IV. Miscellaneous Rules and Memoranda Hip Roofs Curved Hip Rafters Hopper Angles Splayed Gothic Heads
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