Plumbline

Plumbline

A device used to produce a vertical line between a survey instrument and the reference point over (or sometimes under, in underground work) which it is set. Special plumblines are used in a vertical shaft to transfer a fixed or an azimuth angle from the surface to underground workings for the purpose of orientation. Also known as plumb bob; plummet.

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Part of Speech: noun
Synonym(s):
Blossary:
Industry/Domain: Mining
Category: General mining; Mineral mining
Government Agency: USBM
Product: Dictionary of Mining, Mineral, & Related Terms - 2nd Edition
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