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A knot tied in the middle of a line to form two loops that can be used as a temporary harness.

Related Terms

RESTRICTOR

A device for producing a deliberate pressure drop or resistance in a line by reducing the cross-sectional flow area.

SEQUESTER

To form a stable, water-soluble complex.

BALL BEARING

An anti-friction rolling type bearing containing rolling elements in the form of balls.

CLOUD POINT

The temperature at which waxy crystals in an oil or fuel form a cloudy appearance.

CRACKING

The process whereby large molecules are broken down by the application of heat and pressure to form smaller molecules.

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.

GRID RHUMB LINE

A line making the same oblique angle with all grid meridians. Grid parallels and meridians may be considered special cases of the grid rhumb line.

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.

CASE DRAIN FILTER

A filter located in a line conducting fluid from a pump or motor housing to reservoir.
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