SOCKET n.
-- Socket pole, a pole armed with iron fixed on by means of a socket, and used to propel boats, etc. [U.S.] -- Socket wrench, a wrench consisting of a socket at the end of a shank or rod, for turning a nut, bolthead, etc., in a narrow or deep recess.
SPAN n.
iron (Naut.), a special kind of harpoon, usually secured just below the gunwale of a whaleboat. -- Span roof, a common roof, having two slopes and one ridge, with eaves on both sides. Gwilt. -- Span shackle (Naut.), a large bolt driven through the forecastle deck, with a triangular shackle in the head to receive the…