♦ Dagger-knees are those which are fixed rather obliquely to avoid an adjacent gun-port, or where, from the vicinity of the next beam, there is not space for the arms of two lodging-knees.
♦ Lodging-knees are fixed horizontally in the ship's frame, having one arm bolted to the beam, and the other across two or three of the timbers.
♦ Standard-knees are those which, being upon a deck, have one arm bolted down to it, and the other pointing upwards secured to the ship's side; such also, are the bits and channels.