The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 466
raph, a manmay make the necessary and self-evident connexion between the rodf, and the limb of the telegraph, which limb being made with a bell-crank, when the rod e is raised may cause the telegraph limb to lie 1830.] THE CIVIL ENGINEER AND ARCHITECTS JOURNAL. 449 horizontally, and when the rod e…
Architecture · Civil engineering · Science
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