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Use "keelsons" in a sentence
"Except for scattered ribs, frames, and keelsons, they have disappeared with few traces."
"In the case of Fig. 1, which represents the City of Rome, the largest of the three, it will be seen that the main framing of the vessel is entirely transverse, with very heavy keelsons in the bottom, and large partial bulkheads or web frames, and the outside plating arranged on what is termed the edge to edge principle, with a great portion of it double."
"In loading nitrate a stout platform must be erected athwart ship, above the keelsons, in order that the foundation of the cargo may be laid level; for, as the sacked nitrate is piled, the pile must be drawn in gradually until the sides meet in a peak like a roof."