Safety lamp it. Air is drawn in and descends just inside the glass, passing up through the flame in the centre of the lamp. The outer casings of lamps have been made of brass or tinned steel. If a lamp bangs against a hard piece of rock a spark could be generated if iron or untinned steel were employed. Within months of Clanny's demonstration of his first lamp, two improved designs had been announced: one by George Stephenson, which later became the Geordie lamp, and the Davy lamp, invented by Sir Humphry Davy. Subsequently, Clanny incorporated aspects of both lamps and produced
Tyneside form the separate Wearside conurbation, although the latter has a Newcastle Upon Tyne postcode. The people of the Tyneside area, called "Geordies", have a reputation for their distinctive dialect and accent. Tynesiders may have been given this name, a local diminutive of the name "George", because their miners used George Stephenson's safety lamp (invented in 1815 and called a "Georgie lamp") to prevent firedamp explosions, rather than the Davy lamp used elsewhere. An alternative explanation relates that during the Jacobite risings of 1715 and 1745 the Tynesiders declared their allegiance to the Hanoverian kings of Great Britain George I and