The Collaborative International Dictionary
Rib-band lines
Ribband \Rib"band`\, n. [Rib + band.] [Written also riband, and ribbon.] (Shipbuilding) A long, narrow strip of timber bent and bolted longitudinally to the ribs of a vessel, to hold them in position, and give rigidity to the framework.
Rib-band lines, oblique longitudinal sections of the hull
of a vessel.
--Knight.