From Wikipedia, the free encyclopedia. A pit prop or mine prop (British and American usage, respectively) is a length of lumber used to prop up the roofs of tunnels in coal mines. Canada traditionally supplied pit props to the British market.
What is a Hewer in coal mines?
The Hewer. The hewer’s job was to mine the coal from the coal seam. He would use hand tools such as a sharp pick. The hewer would have to work in an area no taller than the height of the coal seam, which could be less than 60 cm. The hewer would work with a single candle to enable him to see what he was doing.
What is the top of a coal mine called?
Anthracite – A hard, black coal containing a high percentage of fixed carbon and a low percentage of volatile matter. Anticline – An arch or fold in layers of rock shaped like the crest of a wave. Apex – The top or terminal edge of a vein on surface or its nearest point to the surface.
What is a seam in a mine called?
: a bed of coal usually thick enough to be profitably mined.
What is the difference between a pit and a colliery?
In the United Kingdom and South Africa, a coal mine and its structures are a colliery, a coal mine is a ‘pit’, and the above-ground structures are a ‘pit head’. … In the United States, “colliery” has been used to describe a coal mine operation, but this usage is less common.
How dangerous is coal mining?
Working in coal mines is dangerous — miners have to deal with toxic gases, plus the threat of being crushed, drowned, or injured from fires and explosions.
What is gob coal?
A gob pile is a pile built of accumulated spoil, the waste rock removed during coal mining. This waste material is typically composed of shale, as well as smaller quantities of carboniferous shale and various other residues.
Why is a mine called a mine?
A mine is an explosive placed underground or underwater that explodes when disturbed, or when remotely triggered. The term originated from the use of mining to go under the enemy’s city walls.
What is a pit deputy?
He can be compared to a supervisor, he was responsible for an area of the pit underground. He would walk the roadways (tunnels to non mining folk) and crawl along the coal face where men were working.
What did a putter do in a coal mine?
Putters were underground workers who pushed carts full of coal from the hewers to the sidings where it could be picked up by a driver. Sometimes two boys would work together to push one heavy cart. These young workers who could not push heavy carts by themselves were known as half-marrows.
What does sinking a pit mean?
Shaft mining or shaft sinking is excavating a vertical or near-vertical tunnel from the top down, where there is initially no access to the bottom. … Historically mine shaft sinking has been among the most dangerous of all the mining occupations and the preserve of mining contractors called sinkers.
What is a colliery Labourer?
general term for any boy working in or about colliery, usually underground. … (i) examines and repairs colliery shafts, see shaftman; (ii) is an experienced underground worker who can undertake all kinds of pit work; (iii) general term for anyone working underground.
What do you call the two parts of the lift that goes down a mine?
Answer: The sheave wheel is a pulley wheel that sits above the mine shaft. The hoist cable passes over the sheave wheel and then down the shaft of the mine. The sheave wheel reduces the sliding friction of the mine cable.
What is the deepest coal mine?
Mponeng gold mine in South Africa is currently the deepest mine in the world.
What is a colliery overman?
Overman. The overman is a deputy to the viewer and involved more directly with the daily work of the pit. When a colliery has a number of pits under a viewer, there is an overman to each pit.
What is a colliery spoil tip?
A spoil tip is a pile of waste rock and soil removed during coal mining. … Tipping continued until 1966 by which time 7 tips had been constructed containing 2.7m cubic yards of colliery spoil.