The knots are generally used to fasten one rope to another, by means of a small cord attached to the neck of the knot, called the laniard, which is firmly tied about both ropes. They are also designed to prevent the end of a rope from sliding through an eye, which the knot is intended to confine in a particular situation. See Beckets.
L.
TO LABOUR, travailler, as a sea-term, implies to roll or pitch heavily in a turbulent sea; an effect, by which the masts and hull of the ship are greatly endangered, because by the rolling motion the masts strain upon their shrouds with an effort, which increases as the sine of their obliquity: and the continual agitation of the vessel gradually loosens her joints, and often makes her extremely leaky.
LADDER, echelle, a well-known convenience, of which there are a great number in a ship, formed of two pieces of plank joined together by crosspieces, which serve as steps, whereby to mount or descend from one deck to another.
The ladders derive their names from the several hatchways, or other parts of a ship, wherein they are situated. Besides these, there are, of a particular construction, the accommodation-ladder and the quarter-ladders.
Accommodation-Ladder, is a sort of light stair-case, occasionally fixed on the gangway of the admiral, or commander in chief, of a fleet. It is furnished with rails and entering-ropes, covered with red bays, and the lower-end of it is retained at a competent distance from the ship’s side by iron bars, or braces, to render the passage more convenient to those who enter or depart from the ship. See the article Gangway.
Quarter-Ladders, two ladders of rope, depending from the right and left side of a ship’s stern, whereby to descend into the boats which are moored astern, in order to bring them up along-side of the ship; or to use them for any other occasion.
LADEN, chargée, the state of a ship when she is charged with a weight or quantity of any sort of merchandizes, or other materials, equal to her tonnage or burthen. If the cargo with which she is laden is extremely heavy, her burthen is determined by the weight of the goods; and if it is light, she carries as much as she can stow, to be fit for the purposes of navigation. As a ton in measure is generally estimated at 2000 lb. in weight, a vessel of 200 tons ought accordingly to carry a weight equal to 400,000 lb. when the matter of which the cargo is composed is specifically heavier than the water in which she floats; or, in other words, when the cargo is so heavy that she cannot float high enough, with so great a quantity of it, as her hold will contain.
Laden in bulk, the state of being freighted with a cargo which is neither in casks, boxes, bales, or cases, but lies loose in the hold; being defended from the moisture, or wet of the hold, by a number of mats and a quantity of dunnage. Such are usually the cargoes of corn, salt, or such materials.
LAID-UP, the situation of a ship when she is either moored in a harbour during the winter season, or laid by, for want of employment: or when by age and craziness she is rendered incapable of further service.