Owners or operators of vessels providing transportation to shippers. The term is also used to refer to the vessels.

The part of a rotating element that counteracts any inherent thrust developed by the impellers.

A manmade waterway used to connect bodies of water that do not connect naturally. Canals use locks to raise and lower boats when connecting bodies of water that have different water levels.

The operation of taking a sounding with the hand lead (to find bottom).

A lit navigational aid such as a lighthouse that can be used at night or in poor visibility.

A keel that is narrow and deeper than a full keel.

A device that removes solid contaminants, such as dirt or metal particles, from a liquid or gas (air is a gas), or that separates one liquid from another, or a liquid from a gas. The term filter describes the complete unit ... housing, filter element, int ...

The permitted increase in pressure developed after the valve has opened. Usually expressed in percentage, ie.; 3% accumulation (A.S.M.E. Code, Section I). Flows through safety/relief valves are officially determined at these overpressure conditions.

A gigantic sea animal.

A hole in the hull for mooring lines, cable, or chain to run through.

A filter unit that combines three principles to filter out oil aerosols: 1) Direct interception - A sieving action, 2) Inertial impaction - Collision with filter media fibers, 3) Diffusion -Particles travel in a spiral motion, presenting an effective fron ...

Metal strip and lead fastener used for locking freight car or truck doors. Seals are numbered for record purposes.

A small free-moving submersible designed for exploring the ocean depths.

Gallons per minute

To haul in or bind something together in order to create more space.

The merchant ships on the official registers of any nation.

To reeve and secure a stopper (hold a strain on a line while transferring it).

Assault upon a seaman, by Master, while at sea.

A restrictive tube used in a refrigeration system which restricts the flow of freon and allows pressure to build on one side and suction on the other. It is located between the condenser and the evaporator.

Weight of the goods alone without any immediate wrappings, e.g., the weight of the contents of a tin can without the weight of the can.