The space between the two sides of the shell of a block in which the sheave is fitted.

Abbreviation for "Gross Vehicle Weight." The combined total weight of a vehicle and its container, inclusive of prime mover.

Above the main deck.

Port where cargo is discharged from means of transport.

A person or firm who transacts all business in a port on behalf of shipowners or charterers. Also called shipping agent; agent.

A knot with two half hitches loops - on the standing part of the line.

Is a pipe extending downward from the bottom of the airline to collect any condensation flow in the pipe.

A written agreement between the master of a ship and the crew concerning their employment. It includes rates of pay and capacity of each crewman, the date of commencement of the voyage and its duration.

Another name for the bo'sun's whistle.

A bulkhead placed athwartships.

Abbreviation for "Consumption Entry." The process of declaring the importation of foreignmade goods for use in the United States.

Said of the anchor chain when moored and the chain does not lead clear of another chain.

A draft that matures either a certain number of days after acceptance or a certain number of days after the date of the draft.

A draft payable on demand upon presentation.

Type of wrench used to tighten or loosen fire hose fittings.

A barge which loads material dumped into it by a dredger and discharges the cargo through the bottom.

A liquid piston compressor is a rotary compressor in which a vaned rotor revolves in an elliptical casing, with the rotor spaces sealed by a ring of liquid rotating with it inside the casing.

A filter element so full of contaminants that no longer can pass rated flow without excessive pressure differential.

A line attached to the crown of an anchor and used to help free it in the event it becomes fouled.