The apparatus carried by all personnel underground to
The place where mine lamps are stored, repaired, charged
with electricity or oil and issued to personnel before
An excavation or passageway driven in the coal, establishing
a base from which other workings begin. A colliery level
does not mean a passageway excavated on a horizontal plane.
A level is generally excavated in one or more slight inclines.
All the workings driven upwards from one level in a steep
A brownish black coal that is intermediate between peat
and sub-bituminous coal.
A miner's assistant who loads coal into boxes and generally
assists the miner at the face.
A mining operation at a long coal face between parallel
passages, the face being from 50 to 100+ feet, from which
the coal is blasted, then loaded by hand onto mechanically
shaken pans which move the coal to the pit boxes.
A non-binding bituminous coal with 78% to 86% fixed carbon
and 14% to 22% volatile matter.