The building at the entrance to a mine into which the
coal boxes are drawn and dumped into the mine screens,
and from there to railway. The term is loosely described
as all the surface buildings.
An inclined passage running up at right angles from a
main level, into the coal seam, normally tracked with
boxes drawn up by balance and lowered gravity. The term
gradually means a pair of passages, connected at the top,
one of which is upcast and the other is downcast for ventilation.
The coal left at a mine or mine working.
Cutting a horizontal groove at the bottom or side of the
A separate stratum of coal or other natural deposit such
as clay, rock or shale.
A horizontal section of coal seam included between parting
of coal or shale.
A coal that contains 15% to 20% volatile matter. It is
dark brown to black in colour and burns with a smoky flame.
It is intermediate between sub-bituminous and semi-bituminous
Carbon dioxide gas, sometimes known as choke damp.
Gas discharged under pressure from a vein in a coal seam.
A sapropelic coal resembling cannel coal in its physical
properties but containing algae, not spores. It rarely
occurs in a pure state but rather in forms transitional
to cannel coal. A source of both oil and gas.
A wooden support of the mine roof, like a building rafter,
that is set horizontally.
The mining and/or selling of coal from an area not owned
by the miner or without the owner's permission.
A chamber excavated in coal, off a balance. In some coal
fields, a bord is called a room.
A hole of small diameter drilled or bored to explore the
strata beneath, above, beside or ahead.
A mine car or wagon into which coal is loaded at the face
and from there is transported to the surface.
A partition normally made of canvas, but sometimes made
of wood, to make two airways where one existed before,
and permit air to move in and out of the mine area.
As for cross heading.
Thermal Unit (B.T.U.)
Heat needed to raise one pound of water by one degree
F (252 calories).
A workman (always an experienced miner) who keeps the
roof, sides and pavement of a passage in good repair.
A miner's working partner - also known as "buddy".
A wheel, operating freely, around which passes the rope
in a balance - gravity - power system. Most are equipped