Naval architecture: a manual on laying-off iron, steel, and composite vessels (1898)
Watson, Thomas Henry · London; New York: Longmans, Green and co., [etc.] · leaf 182
LDS. 75 turning the bar, the position of the plate or bar keel ending on thebuilding blocks, should be lifted relative to an adjacent frame, andtransferred on to the mould. It will be readily seen that, to securethe designed length, this should be carefully done; besides, anymistake would affect… … of the shell-plate edges, decks, and ribbands. The height of thelevel line is centre-punched on the fore edge of the bar; which willbe found useful in erecting. In some yards the rivet holes are drilledin the bar previous to turning, leaving out those in way of thelanding edges until the ship is…
Naval architecture -- Handbooks, manuals, etc · Naval architecture · Ships, Iron and steel
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