The Carpenter's New Guide; A Complete Book of Lines for Carpentry and Joinery, Treating Fully on Practical Geometry, Soffits, Groins, Niches, Roofs, ... Variety of Original Designs (Classic Reprint)

To a book intended merely for the use of Practical Mechanics, much Preface is not necessary. It is proper, however, to say, that whatever rules by previous authors have on examination proved to be true and well explained, these have been selected and adopted, with such alterations as a very close attention has warranted for the more easily comprehending them, for their greater accuracy or facility of application; added to these, are many examples which are entirely of my own invention, and such as will, I am persuaded, conduce very much to the accuracy of the work, and to the ease of the workman. The arrangement of the subjects in this work is gradual and regular, and such as a student should pursue who wishes to attain a thorough knowledge of his profession: and as it is Geometry that lays down all the first principles of building, measures of lines, angles, and solids, and gives rules for describing the various kinds of figures used in buildings; therefore, as a necessary introduction to the art treated of, I have first laid down, and explained in the terms of workmen, such problems of Geometkt as are absolutely requisite to the well understanding and putting in practice the necessary lines for Carpentry. These problems duly considered, and their results well understood, the learner may proceed to the theoretical part of the subject, in whichS offits claim particular attention; for, by a thorough knowledge of these, the student will be enabled to lay down arches which shall stand exactly perpendicular over their plan, whatever form the plan may be: on this depends the well executing all groins, arches, niches, c., constructed in circular walls, or which stand upon irregular bases; wherefore the importance of rightly understanding these I cannot too much insist upon, their construction being so various and intricate, and their uses so frequently required. T
(Typographical errors above are due to OCR software and don't occur in the book.)