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

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

The gauge pressure at which a safety valve visibly and audibly opens or at setting which a relief valve discharges an unbroken stream of liquid.

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

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 bridge that can be raised vertically to allow boats to pass underneath.

The distance between frames.

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

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

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.

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

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

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

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.

(1) A knot used to secure a line to another object such as a ring or cylindrical object or to another line; (2) Common term for an enlistment.

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 ...

National Electrical Manufacturers Association.

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

Also rubbing strake or rub strake. An applied or thickened member at the rail, running the length of the boat; serves to protect the hull when alongside a pier or another boat.