In the 19th century mining was a very dangerous business: miners had only basic tools and ... hot enough to ignite the gas. His prototype lamp is shown above. The new safety lamp was immediately ...

The work of the miners was arduous ... this part of our history which fuelled the Industrial Revolution. This lamp, designed to reduce underground explosions which claimed many lives is part ...

A miner's safety lamp is placed on the tree to mark the 40th anniversary of the miners' strike. Forty hand-painted miners' banners go on show at Durham Cathedral from 22 October until 7 November.