SPANKER-EEL. A northern term for the lamprey.
SPANKING. Going along with a fresh breeze when the spanker tells, as the aft well-boomed out-sail. The word is also used to denote strength, spruceness, and size, as a spanking breeze, a spanking frigate, &c.
SPANNER. An instrument by which the wheel-lock guns and pistols were wound up; also used to screw up the nuts of the plummer boxes. Also, an important balance in forming the radius of parallel motion in a steam-engine, since it reconciles the curved sweep which the side-levers describe with the perpendicular movement of the piston-rod, by means of which they are driven.
SPANNING A HARPOON. Fixing the line which connects the harpoon and its staff. The harpoon iron is a socketed tool, tapering 3 feet to the barb-heads; on that iron socket a becket is worked; the staff fits in loosely. The harpoon line reeves upwards from the socket through this becket, and through another on the staff, so that on striking the whale the staff leaps out of the socket and does not interfere with the iron, which otherwise might be wrenched out.
SPAN OF RIGGING. The length of shrouds from the dead-eyes on one side, over the mast-head, to the dead-eyes on the other side of the ship.
SPAN-SHACKLE. A large bolt running through the forecastle and spar-deck beams, and forelocked before each beam, with a large triangular shackle at the head, formerly used for the purpose of receiving the end of the davit. Also, a bolt similarly driven through the deck-beam, for securing the booms, boats, anchors, &c.
SPAR. The general term for any mast, yard, boom, gaff, &c. In ship-building, the name is applied to small firs used in making staging.
SPAR-DECK. This term is loosely applied, though properly it signifies a temporary deck laid in any part of a vessel, and the beams whereon it rests obtain the name of skid-beams in the navy. It also means the quarter-deck, gangways, and forecastle of a deep-waisted vessel; and, rather strangely, is applied to the upper entire deck of a double-banked vessel, without an open waist.
SPARE. An epithet applied to any part of a ship's equipage that lies in reserve, to supply the place of such as may be lost or rendered incapable of service; hence we say, spare tiller, spare top-masts, &c.