The interaction between the stages of a centrifugal compressor. When a multi-stage compressor is designed, each stage can operate at only one point its characteristic curve. The point is determine by the design conditions of temperature, flow and pressur ...

A law limiting the time in which claims or suits may be instituted.

The joining of two timbers by beveling the edges so the same thickness is maintained throughout the length of the joint.

On a square-rigged ship, the act of lowering a spar or yard to the deck.

Resistance to flow. Defined as the difference in pressure upstream and downstream.

A pneumatic device with a rotary output. Typically of a vane or rack-and-pinion construction.

Stationed near an offshore in-stallation, responsible for evacuating its crew in emergencies. Also performs continuous guard function, warning other vessels to keep their distance from installations, etc.

The distance between frames.

The horsepower calculated from compressor-indicator diagrams. Applied only to displacement type compressors.

A transportation arrangement in which truck trailers with their loads are moved by train to a destination. Also known as Rail Pigs.

To ascertain the proper course to be steered to make the desired point or port. Shark's mouth

Very small wooden pail having one stave prolonged to form a handle. Used as a bailer in a boat.

A dynamic compressor. A machine in which air or gas is compressed by the mechanical action of rotating vanes or impellers imparting velocity and pressure to the air or gas. In a centrifugal compressor, flow is in a radial direction. Air enters the compres ...

Is any gas or gas mixture that contains no water vapor and/or in which all of the constituents are substantially above their respective saturated vapor pressures at the existing temperature.

A trailer or semi-trailer with no sides and with the floor of the unit close to the ground.

Pipe lines to a compartment for smothering a fire by steam or by a chemical.

The forward mast of a boat with more that one mast

National Electrical Manufacturers Association.

A sea running in a direction contrary to the wind, which can be confused and dangerous.

Small horizontal spars extending athwartships from one or more places along the mast. The shrouds cross the end of these "spreaders", enabling the shrouds to better support the mast.