1) Horizontally placed structural timbers between a vessel's frames that form and secure hull openings. 2) An underwater bank at the entrance to a harbour.
Related Terms |
SEQUESTER
To form a stable, water-soluble complex.
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BALL BEARING
An anti-friction rolling type bearing containing rolling elements in the form of balls.
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BELAY
To secure a rope by winding on a pin or cleat
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CLOUD POINT
The temperature at which waxy crystals in an oil or fuel form a cloudy appearance.
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CRACKING
The process whereby large molecules are broken down by the application of heat and pressure to form smaller molecules.
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DEMULSIBILITY
The ability of a fluid that is insoluble in water to separate from water with which it may be mixed in the form of an emulsion.
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HEAVE
The oscillatory vertical rise and fall, due to the entire hull being lifted by the force of the sea. Also called HEAVING
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CARBON
A non-metallic element - No. 6 in the periodic table. Diamonds and graphite are pure forms of carbon. Carbon is a constituent of all organic compounds. It also occurs in combined form in many inorganic substances; i.e., carbon dioxide, limestone, etc.
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BRINELLING
Permanent deformation of the bearing surfaces where the rollers (or balls) contact the races. Brinelling results from excessive load or impact on stationary bearings. It is a form of mechanical damage in which metal is displaced or upset without attrition.
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SEA CHEST
An opening for supplying seawater to condensers, pumps, etc. located in the hull below the waterline and having means for the attachment of the associated piping
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