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The Mills bomb was inspired by an earlier design by Belgian captain Leon Roland, who later engaged in a patent lawsuit. [2] Col. Arthur Morrow, a New Zealand Wars officer, also believed aspects of his patent were incorporated into the Mills Bomb. [3] The Mills bomb was adopted by the British Army as its standard hand grenade in 1915 as the No ...
The Mills bomb – the first modern fragmentation grenade – was used in the trenches from 1915. William Mills, a hand grenade designer from Sunderland, patented, developed and manufactured the "Mills bomb" at the Mills Munition Factory in Birmingham, England in 1915, designating it the No.5. It was described as the first "safe grenade".
Removing the main time-delay fuze more than 15 millimetres from its fuze pocket (without neutralising the anti-handling device underneath) automatically released the cocked firing pin inside the ZUS-40, which sprang forward to strike a large percussion cap, thereby causing detonation of the bomb and the death of anyone nearby. Because the ZUS ...
In general, the munition has to travel a certain distance, wait for a period of time (via a clockwork, electronic or chemical delay mechanism), or have some form of arming pin or plug removed. Only when these processes have occurred will the arming process of the series time fuze be complete.
Using the No. 69 bomb was very simple: the screw-off cap was removed and discarded, and the grenade was then thrown. When the grenade was thrown, a linen tape with a curved lead weight on the end automatically unwrapped in flight, freeing a ball-bearing inside the fuze.
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The original Mk 2 grenade had a 3 ⁄ 8-inch (9.5 mm) threaded plug in its base, which covered the opening used to place the explosive filling, either 1.85 oz (52 g) of TNT, 2.33 oz (66 g) of Trojan explosive (a mixture of 40% nitrostarch, ammonium nitrate, and sodium nitrate), 1.85 oz (52 g) of a 50/50 amatol/nitrostarch mixture, or 1.85 oz (52 g) of Grenite (a mixture of 95% nitrostarch and ...
The first Mills bomb – the grenade No. 5 Mk. 1 – was introduced the same year as the German Model 1915, but due to manufacturing delays it was not widely distributed into general service until 1916. Thus, there was a small period of time where German troops had large supplies of new Model 1915 grenades, while their British opponents only ...