British Army uniform and equipment in World War I It contained an inner can of explosive with an outer can of metal fragments or ball bearings. The fuses that were developed for the Jam Tin Grenade were activated by friction or a by lighted taper which was often replaced by a lighted cigarette. This was followed by the highly successful Mills bomb in 1915. It was oval in shape to fit into a clenched fist and time fused. The detonator was activated by a spring driven firing pin which was restrained by a lever that in turn was locked by a safety pin. The Mills bomb was a defensive
Science and invention in Birmingham corrosion and increasing its resistance to wear. Parkerizing is commonly used on firearms. 1907: Accles & Pollock produce the first tubular sections for aircraft and the first tubular furniture. 1908: Pockley Automobile Electric Lighting Syndicate markets the world's first electric car lights to be sold as a set, which consist of headlights, sidelights and tail lights and are powered by an 8 volt battery. 1910: J. R. R. Tolkien begins to construct his first Elfin tongue whilst a pupil at King Edward's School, Birmingham. He later calls it Qenya (c. 1915). Tolkien is already familiar with Latin, Greek, Spanish, and