The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 379
convenient, provided that it commences at b and teraiinates at a. Thepoints c c c represent projections from the groove, having holes forscrewing on a wooden guide-bar, to prevent the staybar from risingout of the groove. … Fig. 105 is a section of thegroove of half the proper size, inwhich d is the gaide,-bar of woodscrewed on to the groove at c;f is the 0])ening in the bottom ofthe groove into which the stayliardrops. These openings may eitherbe made at each end of the groove;^only, for the purpose of o|)ening^the…
Architecture · Civil engineering · Science
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