Science and invention in Birmingham pen nibs per week. 1915: William Mills develops the first "safe grenade" meaning it is safe for the soldier throwing it rather than his opponent. It is named the Mills bomb, and is adopted by the British Army as its standard hand grenade in 1915. 75,000,000 grenades are supplied during The Great War. 1918: Much work is carried out by Oliver Lucas's company on the design and improvement of the military search light, he also designs a signalling lamp after experiences at the Somme and the design is later used by the British Army. 1920: Charles Henry Foyle invents the
Science and invention in Birmingham folding carton and is founder of Boxfoldia. However, an American process is developed by accident prior to this. 1921: A British patent for windscreen wipers is registered by Mills Munitions. Several other patents take place for windscreen wipers around the world. 1922: Birmingham rubber manufacturer Dunlop invents a tyre with steel rods and a canvas casing that lasts three times longer than any other tyre, this is a milestone in tyre manufacture. The following year their tyres help Henry Segrave win a Grand Prix title in a Sunbeam racing car, and are then used on a Bentley to help win