Felling mine disaster

Felling mine disaster

Felling mine disaster was one of the first major Mining accidents or mine disasters in Britain, claiming 92 lives on 25 May 1812.

The colliery was situated between Gateshead and Jarrow in what used to be County Durham, now South Tyneside and had two shafts about 600 feet deep. It was extended in 1810 by the opening up of a new coal seam, the Low Main seam, and it was here that the explosion which engulfed the pit occurred. As with so many other coal mine disasters, the accident was caused by ignition of firedamp (methane) which then triggered a coal dust explosion. The explosion traveled through the galleries, and ended by erupting from one of the shafts. At that time, lighting in the pits was hazardous. Open flame lamps could easily ignite the gas, so steel mills were often used to provide weak illumination, but these too could set off a gas explosion. The alternative was to deliberately destroy gas accumulations in a dangerous operation conducted by a "monk", actually a foolhardy miner shrouded in a wet blanket who poked a candle on a long pole into gas pockets. His life must have been short, but probably well paid when successful.

afety lamp

The disaster became famous because it stimulated an unknown engineer, one George Stephenson, to design a safety lamp with air fed through narrow tubes, down which a flame could not move. It also led and an eminent scientist (Humphry Davy) to devise another safety lamp where the flame was surrounded by iron gauze. The gauze had to have small spaces so that a flame could not pass through, but could admit methane, which then burned harmlessly inside the lamp. The height of the luminous cone above the flame gave a measure of the methane concentration in the general atmosphere. The disaster is thus remembered for stimulating inventive minds to tackle the problem and save lives as well as maintain productivity and confidence in a growing industry.

Unfortunately, the lamps did not prevent further disasters because there were other sources of ignition, such as sparks from metal tools such as picks and shovels and later, electrical equipment and explosives used to blast tunnels. Moreover, both of the lamps could set off explosions if the gauze rusted through (very likely in the wet environment of a pit bottom), or the glass on the Geordie fractured which also happened. Later devices such as the Mueseler lamp were better protected, but all such lamps gave very poor illumination. It was one cause of nystagmus, a disorder of the eyes coomon among coal miners. It was not until electric safe lamps were introduced at the end of the Victorian period that miners had adequate and safe lights.

The Victims

Inscription on memorial states: "In Memory of the 91 Persons Killed in Felling Colliery 24 May 1812" [ [http://www.dmm-gallery.org.uk/memorial/1812052402.htm Durham Mining Museum - 1812 Felling Colliery Disaster Memorial at St. Mary's Churchyard, Heworth (OS Map 88, Grid Ref NZ286619)] ]

Bibliography

*Helen and Baron Duckham, "Great Pit Disasters: Great Britain 1700 to the present day", David & Charles (1973)

References

External links

* [http://www.dmm-gallery.org.uk/memorial/1812052402.htm Durham Mining Museum - 1812 Felling Colliery Disaster Memorial at St. Mary's Churchyard, Heworth (OS Map 88, Grid Ref NZ286619)]

ee also

*Humphry Davy
*Mining accident
*George Stephenson


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