Horizontally mounted block used to re-direct a line on deck.

Port where cargo is discharged from means of transport.

A hand held pneumatic tool. Designed for light demolition work, digging, making holes etc.

An astray shipment (a lost shipment that is found) sent to its proper destination without additional charge.

The man stationed aloft or in the bows for observing and reporting objects seen.

A certificate authenticated by a recognized port authority, certifying that a ship comes from a place where there is no contagious disease, and that none of her crew was infected with such a disease.

A mast that is in place is stepped.

A person whose business is to act as an agent on behalf of the shipper. A freight forwarder frequently makes the booking reservation.

Allows foreign merchandise arriving at one port to be transported in bond through the U.S. to be exported from another port, without paying duty.

To transfer goods from one transportation line to another, or from one ship to another.

Loose ends of line left hanging over a ship's side.

(1) A small wooden cask in which grog was carried. (2) A type of marine steam reciprocating engine where two engines were used together on the same propeller shaft.

A bulkhead placed athwartships.

Cycles per minute - a unit of measure of the frequency of any vibration.

A device for separating solids or suspended particles in the air before they enter the air intake of the compressor and reduce intake noise as on reciprocating compressors through a silencing chamber in the filter housing.

A short spar under the cap of the bowsprit used for holding down a jib boom.

Also stability sail or riding sail. Any small sail set to help the boat maintain its direction without necessarily moving, as when at anchor or in heavy weather.

Are used with ejectors to convert weight of gas and/or water vapor handled to or from equivalent air.

A unit of pressure used with vacuum pumps, equal to 1mm of mercury and 133.32 Pascal's.

Forcing material into the seams of the planks in a boat's deck or sides to make them watertight; the material itself. Oakum was once the material used for this purpose, and was then sealed with hot pitch to prevent it from rotting. Today there are polymer ...