A dock worker who loads and unloads ships

Related Terms

OFFSHORE MOORING

An anchorage serving an area for which it is not considered feasible or cost-effective to construct a dock or provide a protected harbor, and providing equipment to which ships can attach mooring lines.

MECHANICAL HYGROMETER

A hygrometer in which an organic material, most commonly a bundle of human hair, which expands and contracts with changes in the moisture in the surrounding air or gas is held under slight tension gram arrangement. d r }mechanical damping by a spring, and a mechanical linkage actuates a pointer. mechanical lift dock

LONGSHOREMEN

Dock workers who load and unload ships, or perform administrative tasks associated with the loading or unloading of cargo. They may or may not be members of labor unions. Longshore gangs are hired by stevedoring firms to work the ships. Longshoremen are also called stevedores.

CONTAINER TERMINAL

A specialized facility where ocean container vessels dock to discharge and load containers, equipped with cranes with a safe lifting capacity of 35-40 tons, with booms having an outreach of up to 120 feet in order to reach the outside cells of vessels. Most such cranes operate on rail tracks and have articulating rail trucks on each of their four legs, enabling them to traverse along the terminal and work various bays on the vessel and for more than one crane to work a single vessel simultaneously. Most terminals have direct rail access and container storage areas, and are served by highway carriers.

DOCK

A structure built along, or at an angle from, a navigable waterway so that vessels may lie alongside to receive or discharge cargo. Sometimes, the whole wharf is informally called a dock.

NON-TIDAL BASIN

An enclosed basin separated from tidal waters by a caisson or flood gates. Ships are moved into the dock near high tide. The dock is closed when the tide begins to fall. If necessary, ships are kept afloat by pumping water into the dock to maintain the desired level. Also called WET DOCK.

DOCK SILL

The foundation at the bottom of the entrance to a dry dock or lock against which the caisson or gates close. The depth of water controlling the use of the dock or lock is measured from the sill to the surface.

DRY-DOCK

To place in a dry dock

SKYLIGHT

A framework fitted over a dock opening for admitting light and air into the compartment below

FLOATING DOCK

A form of dry dock consisting of a floating structure of one or more sections, which can be partly submerged by controlled flooding to receive a vessel, then raised by pumping out the water so that the vessel's bottom can be exposed.

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