Spontaneous Combustion. Burning of a substance by the generation of heat consequent on a chemical change taking place inside the substance.
Spooning. Running directly before wind and sea.
Spouter. A whale when spouting.
Sprag. A bolt inserted in the spur wheel of a towing winch to prevent the winch from turning.
Spray.Water blown, or thrown, into the air in particles.
Spreaders. Spars, or irons, put on a mast to increase the interior angle that a shroud or backstay makes with the mast.
Spreading. Distributing a fire over the firebars in a boiler furnace when the fire is lit, or after it has been banked.
Spring. Rope from after part of a vessel led outside and forward to a point of attachment outside vessel. By heaving on it ship can be moved ahead. Sometimes led to anchor cable, for casting ship's head. 2. Tendency of a vessel's head to come nearer to wind. 3. The opening of a seam. 4. Partial fracture in a mast or spar.
Spring a Leak. To start leaking, possibly through straining.
Spring a Luff. To come closer to the wind when close-hauled. 2. To come into the wind and set to leeward.
Spring Beam. Strong fore and aft timber connecting the outboard ends of a paddle-box. Spring Block. Pulley block having a spring connection to ring-bolt. Formerly used for sheet blocks, and others, so that they yielded slightly to sudden gusts of wind.
Springing. Moving a vessel ahead by means of a spring. 2. Loosening the butt of a plank in a vessel's bottom.