Lamp
The apparatus carried by all personnel underground to
give light. |
Lamp
Cabin
The place where mine lamps are stored, repaired, charged
with electricity or oil and issued to personnel before
going underground. |
Level
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. |
Lift
All the workings driven upwards from one level in a steep
pitching seam. |
Lignite
A brownish black coal that is intermediate between peat
and sub-bituminous coal. |
Loader
A miner's assistant who loads coal into boxes and generally
assists the miner at the face. |
Long
Wall
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. |
Low-Volatile
Bituminous Coal
A non-binding bituminous coal with 78% to 86% fixed carbon
and 14% to 22% volatile matter. |
