The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 182
The principal dimensions are as follows:—diameter out to out, SOfeet, 28 arms B, S inches by 3 inches; side stays C, two to each arm,4 inches by 3 inches ; the arms and stays are braced together by twocircles D D, 4 inches by 3 inches; and by cross stretchers E, of the … FiK. 4. Fig. 5.
Architecture · Civil engineering · Science
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