The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 30
of the bridge. F, tlie capswhich cover the upper edges of the two bars ofwhich the bottom rail A, is composed. At theends of a bridy^e it is preferred to use additionalbars D*, D, as shown at fig. 1, and also holding-bars G, with adjusting screws and nuts, as at H ;but these may be dispensed with.…
Architecture · Civil engineering · Science
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