Excerpt from A Practical Treatise on the Construction of Oblique Arches To find the spiral courses on the plan, divide a (1 into the same number of parts as b c, and through those divisions as s u, begin at 8, and draw through every alternate division as at Q', 8rd, proceed in the same way with the others, always bear. Ing in mind to start from the springing with the first cross-joint; every other horizontal division will then be composed of as many parallelograms as there are springing stones on the abutment, each of ...
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Excerpt from A Practical Treatise on the Construction of Oblique Arches To find the spiral courses on the plan, divide a (1 into the same number of parts as b c, and through those divisions as s u, begin at 8, and draw through every alternate division as at Q', 8rd, proceed in the same way with the others, always bear. Ing in mind to start from the springing with the first cross-joint; every other horizontal division will then be composed of as many parallelograms as there are springing stones on the abutment, each of those forming cross-joints for the spiral courses. The bed-joints are drawn through the intersection of those lines, as at g a', h b', i c', &c. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at ... This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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