Pieces of timber applied to a mast or yard, to prevent the wood from bursting. Also, thick planks lying fore and aft under the beams of the first orlop or second deck, the same as the rising-timbers are to the deck. They are securely fayed to all the timbers, to which they are fastened by nails through the clamp, and penetrating two-thirds of the thickness of the timbers. Also, substantial strakes, worked inside, on which the ends of the beams rest. Also, smooth crooked plates of iron forelocked upon the trunnions of cannon; these, however, are more properly termed cap-squares. (See carriage.) Also, any plate of iron made to open and shut, so as to confine a spar. A one-cheeked block; the spar to which it is fastened being the other cheek.