Safety lamp could create a sufficient updraft that firedamp would not penetrate down the chimney. Further observations of the speed of flame fronts in fissures and passageways led him to design a lamp with fine tubes admitting the air. Sir Humphry Davy was asked to consider the problems of a safety lamp following the Felling explosion. Previous experimenters had used coal gas (chiefly carbon monoxide) incorrectly, believing it to be the same as firedamp. Davy however performed his experiments with samples of firedamp collected from pits. As an experimental chemist, he was familiar with flames not passing through gauze; his experiments enabled
North East England his paper on "The safety lamp for coal mines and some researches on flame" in 1818, which made underground coal mines much more safe. George Stephenson a colliery engineer at Killingworth Main Colliery also invented a safety lamp which was successfully tested on 21 October 1815. This became known as the "Geordie" lamp. As a result, some in the Northeast then tried to challenge the delivery of some Ceremonial Plate to Davy but the Davy Lamper's won the day and on 25 September 1817 a dinner service as presented to Davy from the coal owners at the Queen's Head in