A metal pin by which the plating and other parts of iron and steel vessels are joined. Rivets are known by their heads, such as: Flush, pan, snap, plug, tap, countersunk, mushroom, and swollen neck.

On wooden boats, a line of planking running from the bow to the stern along the hull.

A valve designed to prevent air volume and pressure from escaping the compressor tank back into compressor heads while compressor is not operating.

An audible or visual discharge at a pressure slightly lower than the set pressure on a valve. Warns the operator that the valve is about to open.

To lower, sink deeper.

A type of journal bearing in centrifugal air compressors.

Water which runs down and collects in the bilges of a ship and usually becomes foul and noxious.

Voyage made in varying directions. To sail in various directions for pleasure, in search, or for exercise.

The part of a ship's rigging which is permanently secured and immovable; e.g. stays, shrouds, etc.

A small receiver fitted on the inlet or discharge of a reciprocating compressor. The device is designed to remove the resonance from the compressor thereby reducing noise.

Vessel or vessels of practically any size or type.

A strong vertical post used to attach lines for towing or mooring.

On a square-rigged ship, a small triangular sail set above the skysail in fair weather. A square version is called a Moonraker.

Is the temperature at which water vapor begins to condense at atmospheric pressure. Is the same as dew point, but is related to atmospheric air only.

A rail car without a roof and walls.

The erection or superstructure fitted about amidship on the upper deck of a ship. The officer's quarters, staterooms and accommodations are usually in the bridge house.

The essential fittings and equipment of a ship, such as anchors, rigging, masts, davits, derricks, winches, etc., excluding her consumable stores such as water, fuel and victuals.

Used to denote movements of cargo containers interchangeably between transport modes, i.e., motor, water, and air carriers, and where the equipment is compatible within the multiple systems.

The lowest charge that can be assessed to transport a shipment.

A spar which projects forward from the bow of some boats, and extends the sail plan by allowing the headsails to be secured further forward.