Gas detector early detection methods relied on less precise detectors. Through the 19th and early 20th centuries, coal miners would bring canaries down to the tunnels with them as an early detection system against life-threatening gases such as carbon dioxide, carbon monoxide and methane. The canary, normally a very songful bird, would stop singing and eventually die if not removed from these gases, signaling the miners to exit the mine quickly. The first gas detector in the industrial age was the "flame safety lamp" (or Davy lamp) was invented by Sir Humphry Davy (of England) in 1815 to detect the presence of
History of South Shields in Victorian times, drawing immigrants from far and wide. In South Shields the population soared from approximately 12,000 in 1801 to 75,000 by the late 1860s. Collieries in South Shields included: Coal mining was very hazardous. Shafts could collapse at any time and before the safety lamp was invented in 1815 naked flames carried by miners to light their way could ignite gas underground causing explosions and many deaths. Some mines even had shafts that stretched several miles out under the sea. Overcrowding in the town made sanitation a problem, partly solved by Cleadon Water Pumping Station (a large tower