The Lord of the Rings continues to inspire artwork, music, films and television, video games and subsequent literature, including reference in the Oxford English Dictionary. Award-winning adaptations of The Lord of the Rings are later made for radio, theatre and film. 1910: Oliver Lucas's company design and make an electric car vehicle horn, which becomes industry standard; an electric motorcycle horn is manufactured the following year. 1913: Accles & Pollock is granted a patent for seamless tapered steel golf shafts. 1914: Oliver Lucas and Charles Breeden carry out pioneering work on the design of the dynamo and electric equipment for motorcycles and by 1914 they are already manufacturing these items. 1914 Birmingham, by now, is supplying the world with 28 million mass-produced 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. 1919: The airbag "for the covering of aeroplane and other vehicle parts" traces its origins to a United States patent submitted in 1919 by two Birmingham dentists, Harold Round & Arthur Parrott, and approved in 1920. 1920: Charles Henry Foyle invents the 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 the 24 Hours of Le Mans race. By 1927 Dunlop tyres have already helped Malcolm Campbell reach a British land speed record and in this year, they help Henry Segrave achieve the world land speed record in a Sunbeam 1000 hp at