Journal of the Franklin Institute; devoted to science and the mechanic arts (1826)
Franklin Institute (Philadelphia, Pa.) · Oxford, Eng. [etc.] Pergamon Press [etc.] · leaf 159
bout one-sixth added toFig. l. the original cost of the materials. : And wrought iron is in all structures a very considerable reduction of deadweight, with equal strength andgreater security as compared withcast iron. The two sections hither-to applied are as follows:—Single-headed (Fig. 1) and… … Adams s System of Permanent Way. the question of iron sleepers a most important point, judging from theirhalt-yearly reports. The East Indian engineer states that the cast ironsleepers are a comparative failure, and that they are being removedinto branch roads and sidings, and being replaced on the…
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