3 Terms
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Mineral mining
The extraction of valuable minerals or other geological materials from the earth for economic interests.
Industry: Mining
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Mineral mining
flameproof enclosure
Mining; General mining
An enclosure for electrical apparatus that will withstand, without injury, any explosion of the prescribed flammable gas that may occur within it under practical conditions of operation within the ...
wedge clinometer
Mining; General mining
An end clinometer the bottom end of which is shaped to match the wedge-guide pin on the drive wedge; hence the two can be fastened together with copper shear rivets. When a drive wedge is driven into ...
tapered end
Mining; General mining
An end of rope having a reduced diameter to facilitate threading the rope through fittings and over pulleys.
partially fixed
Mining; General mining
An end support to a beam or a column that cannot develop the full fixing moment.
caterpillar
Mining; General mining
An endless chain of plates that functions as a wheel for heavy vehicles.
crawler track
Mining; General mining
An endless chain of plates used instead of wheels by certain power shovels, continuous miners, etc.
tow conveyor
Mining; General mining
An endless chain supported by trolleys from an overhead track or running in a track at (above, flush with, or under) the floor with means for towing trucks, dollies, or cars.
