A coupling device which consists of a spring loaded shutoff valve and a positive locking mechanism. It is used to connect tools, hoses and other accessories. Also known as Quick Disconnect.

Towards the center line of a ship (towards the center).

A portion of the discharge gas is redirected through a heat exchanger and then expanded back to suction pressure, where it is mixed with normal suction gas stream and commonly used to compensate for process flow demands.

A line with a weight on the end used to measure depth. The lead is dropped into the water and marks on the line are read to determine the current water depth. The lead usually has a cavity to return a sample of the bottom type mud, sand, etc.

A navigational instrument which provides a bearing to a radio beacon.

A framing of metal fitted over an opening in a deck, with glass or plexiglass inserted for the admission of light into a cabin, engine room, etc.

The one who steers the boat.

Caulker's name for the seam in the upper deck planking next to a ship's waterways. There was very little space to get at this seam, making it a difficult and awkward job. This is the origin of the expression "Between the devil and the deep blue sea, since ...

An angle or channel from deck beam to shell frame taking the place of a bracket.

Breaking away of a mass of ice from a glacier or iceberg.

Above this pressure, the system may rupture or burst.

A slot into which the bolt rope or lugs in the luff of the sail are inserted to attach the sail.

A form of wear in which seizing or tearing of the gear or bearing surface occurs.

A traditionally shaped anchor having flukes perpendicular to the stock of the anchor and connected by a shank. These are less common than modern anchors such as the plow and lightweight anchors.

Is the ratio of weight of vapor existing in a given space to the weight that would be present if the space were saturated at the space temperature.

The surface of the water.

The headstay on which jibs are hoisted

A labyrinth type filter having the active surfaces continuously splashed with oil. Most pollutants are absorbed by the oil which when circulated releases its pollutants, which sink by gravity to the bottom of the oil pan.

A light line used for hauling over a heavier rope or cable.

a wind coming from the northeast