dock


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dock,

in botany: see buckwheatbuckwheat,
common name for certain members of the Polygonaceae, a family of herbs and shrubs found chiefly in north temperate areas and having a characteristic pungent juice containing oxalic acid. Species native to the United States are most common in the West.
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Dock

 

(1) A structure used in removing ships from the water to inspect and repair their underwater areas, also used in shipbuilding. A dock is equipped with mechanisms for bringing the ship in and setting it on supports (keel blocks, girders); it is fitted with transfer pumps, traveling cranes, and equipment for providing electric power, steam, compressed air, oxygen, and other materials necessary in repair and construction work. A distinction is made between dry docks, flooding docks, and floating docks.

A dry dock is constructed on a water area protected from the sea; it is a waterproof chamber separated at the end from the sea by a floodgate. The walls and bottom of the dry dock are usually made of concrete or reinforced concrete; less often they are made of metal and stone. During dry-docking, the ship is led into the chamber above the supports and the gate is shut. When the chamber is emptied the ship comes to rest on the supports. Taking the ship from the dock is accomplished in the reverse sequence. A dry dock may be as much as 70 m wide and 500 m long.

A flooding dock differs from a dry dock in that the ships are mounted on platforms above water level. In a flooding dock the ship is led into a canal between the platforms, the floodgate is closed, the dock chamber flooded with water, and the ship is arranged above the piers on which it later comes to rest when the water is removed. Installation of a second gate at the bank end and of tracks for moving the ships on dollies from the working platform and back converts a flooding dock to a launching dock, which is used to lower ships into the water and to raise them from the water. Flooding docks and launching docks are designed for ships of medium size.

A floating dock consists of a flat rectangular pontoon (on whose deck, the dock floor, the ship-supports are set) and two (sometimes one) longitudinal towers. When the compartments of the pontoon and the lower part of the towers are filled with water, the dock tips over and the ship is brought in. When water is pumped from the compartments, the dock surfaces with the ship, which rests on the supports. Floating docks are usually made of steel and less often of reinforced concrete and wood. The length of the larger floating docks is 250-300 m, the width along the dock floor, over 45 m, and the lifting capacity, 100,000 tons. Transport docks, which are used to transport ships, are a variety of the floating dock. A complex consisting of a mother dock and several pontoon docks is also a type of floating dock. The pontoon docks are submerged and surface together with the mother dock; after repeated submersion of the mother dock they are left afloat with the ship, which rests on its supports.

(2) An artificial dock basin with a gate that serves as a berth for ships during loading and unloading in areas where there are major tidal fluctuations in sea level.

REFERENCES

Vakharlovskii, G. A., P. F. Kucheriavenko, and V. F. Buzik. Sovremennye dokovye sooruzheniia dlia krupnykh i srednikh sudov. Leningrad, 1968.
Metallic he skie plavuchie doki. Leningrad, 1964.

G. N. FINKEL’


Dock

 

an aggregate of structures and equipment for mooring and servicing ships and loading and unloading passengers and cargo. Docks are categorized as passenger, cargo, repair, or naval. Depending on its function, a dock may have berthing facilities, loading devices and mechanisms, siding tracks, access roads, warehouses, ticket offices, and waiting rooms. It may also have equipment and devices for mooring and fending off ships.

Docks may be stationary or floating. The latter, called landing stages, are used primarily in river ports. Docks that are positioned in a harbor area to service ships at anchor are called dolphin berths. All the docks together make up the line of moorings, or berthing length, of the port. The length of this line is one of the defining features of a port.

REFERENCES

Porty i portovye sooruzheniia, parts 1-2. Moscow, 1964—67.
Goriunov, B. F., and F. M. Shikhiev. Morskie porty i portovye sooruzheniia. Moscow, 1970.

E. V. KURLOVICH

dock

[däk]
(civil engineering)
The slip or waterway that is between two piers or cut into the land for the berthing of ships.
A basin or enclosure for reception of vessels, provided with means for controlling the water level.

dock

1. A platform, usually the height of the floor or truck vans, which facilitates loading and unloading; a loading dock.
2. Short for scene dock.

dock

1
1. a wharf or pier
2. a space between two wharves or piers for the mooring of ships
3. an area of water that can accommodate a ship and can be closed off to allow regulation of the water level
4. short for dry dock
5. short for scene dock
6. Chiefly US and Canadian a platform from which lorries, goods trains, etc., are loaded and unloaded

dock

2
1. the bony part of the tail of an animal, esp a dog or sheep
2. the part of an animal's tail left after the major part of it has been cut off

dock

3
an enclosed space in a court of law where the accused sits or stands during his trial

dock

4
1. any of various temperate weedy plants of the polygonaceous genus Rumex, having greenish or reddish flowers and typically broad leaves
2. any of several similar or related plants

dock

(1) (verb) To place a device into the cradle of a base station or insert a device into a base station. See docking station and dock connector.

(2) (noun) A base station onto which a device is placed. See Apple dock, Android dock, docking station and dock connector.

(3) (Dock) The launching pad for applications in the Mac OS X operating system. See Mac Dock.
References in classic literature ?
The young man went his way and passed the barrier of the dock.
Ah, here was a splendid means of escape, for it let directly upon the dock, not twenty feet from the water's edge.
Slipping the key into the pocket of his tunic and covering the bundle with his long surcoat, De Vac stepped out into the darkness of the alley and hastened toward the dock.
Number seven dock is there," he said, "and there's the pinnace.
I can fill and dredge and put in a system of docks that will handle hundreds of ships.
Didn't I see you on the dock in Oakland the other day?
Ut took them two days afterward tull clean the dock o' shells an' muck.
Katherine's Dock House, the very steps from which he had some six weeks before surveyed the cabstand, the buildings, the policemen, the boot-blacks, the paint, gilt, and plateglass of the Black Horse, with the eye of a Conqueror.
And yet the prosecution has not hesitated to put into the prisoner's dock a man who is respected, esteemed, and loved by all who knew him--a young savant, the hope of French science, whose whole life has been devoted to knowledge and truth.
If you interfere to balk his vengeance, you should remember there is one way to shut your testimony out; and that is to put you in the dock.
And when, again upon the shore, we turned and saw from the vessel's mast her name signalled in flags of joyous colours, and fluttering by their side the beautiful American banner with its stars and stripes, - the long three thousand miles and more, and, longer still, the six whole months of absence, so dwindled and faded, that the ship had gone out and come home again, and it was broad spring already in the Coburg Dock at Liverpool.
He found himself jostled among a crowd of people, chiefly women, who were huddled together in a dirty frowsy room, at the upper end of which was a raised platform railed off from the rest, with a dock for the prisoners on the left hand against the wall, a box for the witnesses in the middle, and a desk for the magistrates on the right; the awful locality last named, being screened off by a partition which concealed the bench from the common gaze, and left the vulgar to imagine (if they could) the full majesty of justice.