When both anchors are out and the cables lead broad out on their own bows.

Related Terms

PISTON CORER

A steel tube which is driven into the sediment by a free fall and by lead attached to the upper end, and which is capable of recovering undistorted vertical sections of sediment.

LEAD LINING

Lead sheeting used to line the inside surfaces of liquid-storage vessels and process equipment to prevent corrosion. lead network See derivative network.

LEAD JOINT

A pipe joint made by caulking with lead wool or molten lead.

KELVIN BRIDGE

A specialized version of the Wheatstone bridge network designed to eliminate, or greatly reduce, the effect of lead and contact resistance, and thus permit accurate measurement of low resistance. Also known as double bridge; Kelvin network; Thomson bridge.

HAND LEAD

A light sounding lead (7 to 14 pounds), usually having a line of not more than 25 fathoms

GROUND LOG

A device for determining the course and speed over the ground in shallow water consisting of a lead or weight attached to a line. The lead is thrown overboard and allowed to rest on the bottom. The course over ground is indicated by the direction the line tends and the speed by the amount of line paid out in a unit of time.

HEAVE THE LEAD

To take a sounding with a lead

ASPERITIES

microscopic projections on metal surfaces resulting from normal surface-finishing processes. Interference between opposing asperities in sliding or rolling applications is a source of friction, and can lead to metal welding and scoring. Ideally, the lubricating film between two moving surfaces should be thicker than the combined height of the opposing asperities.

BABBITT

A soft, white, non-ferrous alloy bearing material composed principally of copper, antimony, tin and lead.

CATALYTIC CONVERTER

An integral part of vehicle emission control systems since 1975. Oxidizing converters remove hydrocarbons and carbon monoxide (CO) from exhaust gases, while reducing converters control nitrogen oxide (NOx) emissions. Both use noble metal (platinum, palladium or rhodium) catalysts that can be 'poisoned' by lead compounds in the fuel or lubricant.

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