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Mineral mining

The extraction of valuable minerals or other geological materials from the earth for economic interests.

Contributors in Mineral mining

Mineral mining

Metal bath

Mining; General mining

A bath, such as of mercury or tin, employed for chemical processes requiring high temperatures.

Wind beam

Mining; General mining

A beam incorporated into a structure for the sole purpose of resisting wind pressure.

Trussed beam

Mining; General mining

A beam of timber or other material that is stiffened so as to reduce deflection.

Camber

Mining; General mining

A beam, bar, or girder bent like a bow, with the hump towards the strata.

Rocking lever

Mining; General mining

A beam to give the reciprocal motion in hand boring.

Finger lifter

Mining; General mining

A basket-type core lifter.

Incompetent bed

Mining; General mining

A bed that, in a particular case of folding, has yielded to the lateral pressure by plastic adjustment and flow. This may result in the bedding being thrown into complex structures or in the ...

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