BLIND-HARBOUR. One, the entrance of which is so shut in as not readily to be perceived.
BLIND-ROCK. One lying just under the surface of the water, so as not to be visible in calms.
BLIND-SHELL. One which, from accident or bad fuze, has fallen without exploding, or one purposely filled with lead, as at the siege of Cadiz. Also used at night filled with fuze composition, and enlarged fuze-hole, to indicate the range.
BLIND-STAKES. A sort of river-weir.
BLINK OF THE ICE. A bright appearance or looming (the iceberg reflected in the atmosphere above it), often assuming an arched form; so called by the Greenlanders, and by which reflection they always know when they are approaching ice long before they see it. In Greenland blink means iceberg.
BLIRT. A gust of wind and rain.
BLOAT, To. To dry by smoke; a method latterly applied almost exclusively to cure herrings or bloaters.—Bloated is also applied to any half-dried fish.
BLOCCO. Paper and hair used in paying a vessel's bottom.
BLOCK. (In mechanics termed a pulley.) Blocks are flattish oval pieces of wood, with sheaves in them, for all the running ropes to run in. They are used for various purposes in a ship, either to increase the mechanical power of the ropes, or to arrange the ends of them in certain places on the deck, that they may be readily found when wanted; they are consequently of various sizes and powers, and obtain various names, according to their form or situation, thus:—A single block contains only one sheave or wheel. A double block has two sheaves. A treble or threefold block, three, and so on. A long-tackle or fiddle-block has two sheaves—one below the other, like a fiddle. Cistern or sister block for top-sail lifts and reef tackles. Every block is composed of three, and generally four, parts:—(1.) The shell, or outside wooden part. (2.) The sheave, or wheel, on which the rope runs. (3.) The pin, or axle, on which the sheave turns. (4.) The strop, or part by which the block is made fast to any particular station, and is usually made either of rope or of iron. Blocks are named and distinguished by the ropes which they carry, and the uses they serve for, as bowlines, braces, clue-lines, halliards, &c. &c. They are either [made] or [morticed] (which see).
BLOCK. The large piece of elm out of which the figure is carved at the head of the ship.