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A mandrel in which the diameter can be changed by moving conical sleeves.



Related Terms

FORKLIFT

A machine, usually powered by hydraulic means, consisting of two or more prongs which can be raised and lowered and are inserted under heavy materials or objects for hoisting and moving them.

CENTRIPETAL ACCELERATION

The radial component of the acceleration of a particle or object moving around a circle, which can be shown to be directed toward the center of the circle. Also known as radial acceleration.

CHART RECORDER

A recorder in which a dependent variable is plotted against an independent variable by an ink-filled pen moving on plain paper, a heated stylus on heat-sensitive paper, a light beam or electron beam on photosensitive paper, or an electrode on electro-sensitive paper. The plot may be linear or curvilinear on a strip chart recorder, or polar on a circular chart recorder.

LEADING LINE

On a nautical chart, a straight line, drawn through leading marks. A ship moving along such line will clear certain dangers or remain in the best channel.

BOW SPRING LINE

A bow pivot line used in docking and undocking, or to prevent the boat from moving forward or astern while made fast to a pier.

LEVECHE

A warm wind in Spain, either a foehn or a hot southerly wind in advance of a low pressure area moving from the Sahara Desert.

FRICTION ERROR

The error of an instrument reading due to friction in the moving parts of the instrument

UPDRAUGHT

A rapid vertically moving parcel of air found in thunderstorms.

PIVOT BRIDGE

A bridge in which a span can open by pivoting about a vertical axis.

ENGINE BALANCE

Arrangement and construction of moving parts in reciprocating or rotating machines to reduce dynamic forces which may result in undesirable vibrations.

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