Steel ships, their construction and maintenance : a manual for shipbuilders, ship superintendents, students, and marine engineers (1901)
Walton, Thomas · London : Charles Griffin & Co. ; Philadelphia : Lippincott · leaf 288
Fig. 133.—Centre Keelsons standing upon Ordinary Floors. the lug piece shown; and, on the upper edge, two similar large angleswith a flat plate, known as a rider plate, covering the full width of the topflanges. The large keelson angles have one flange exceptionally large,while the other is…
Naval architecture · Ships, Iron and steel
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