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
Transport in Birmingham the world. Extensive regeneration of canals has taken place since the 1980s, including dredging to enable the smooth passage of narrowboats, reconstruction and construction of canalside housing. 2010s developments include the Eastside area of Digbeth and the area within Icknield Port Loop. Canals in Birmingham include: Birmingham has reservoirs to feed its canals, including: There are no navigable rivers: the Rea, on which the City was founded, is little more than a culverted stream, and the Tame, which passes through some northern suburbs, is not navigable. The River Cole, which runs through the south-east of the city through to the