TBANSVERSE SECTIONS

433

the frames by a "knee " The depth of a beam knee is at least three times
the depth of the beam in order to provide an efficient riveted connection
to the frame. The lower deck beams are similar to the upper deck

SNTELRNAL VIEW

Fig. 13.
beams. The beams are slightly rounded upwards, thus forming a
"camber" to shed water off the deck; the camber is usually about one-
fiftieth of the breadth of the vessel, that is about one-quarter inch
to the foot.