GERMAN WWI Artillery Brass Dopp Z C/86 Fuze
Item History & Price
| Reference Number: Avaluer:120094 |
ORIGINAL GERMAN WWI artillery brass Dopp Z c/86 fuze
Appeared in Germany in 1869, the Richter system revolutionned the fuzes technique with the introduction of revolving discs pyrotechnic time mechanisms. It evolved for about 20 years, giving birth to several types of time fuzes with growing complexity, before the apparition of the next generation in 1891. A very important evolution step of this evolution was reached in 1885 : until then, the Richter system evolutions only created t...ime fuzes, but that year a new removable plug, completely redesigned, allowed to a new fuzes evolution to behave as 'double effect' fuzes, that is Time and Percussion.
This new removable plug, called 'DoppZdrSchr c/85' ('DoppelZundersSchraube c/85') was protected under a steel cap giving it a characteristic egg profile. It included both the concussion system and a percussion system copied from the 'Gr Z c/80' percussion fuzes. It was assembled before the shooting on 1- or 2- revolving discs time system bodies, similar to the new profile of the time fuzes 'Schr Zdr 83 and 84'.
A second version of removable double effect plugs version named 'DoppZdrSchr c/86' ('DoppelZundersSchraube c/86') introduced the new graze action mobile pellet and percussion pin mounted on a transversal bridge that was later to equip several fuzes beginning with the time and percussion 'Dopp Z 91'.
The fuze removable plug had mushroom shape. This upper mobile mass head included two starters placed in front of two percussion pins mounted on the static body and protected by a tulip shaped spring. The departure shock made the 'mushroom' head move back and flatten the spring, causing the starter to be triggered. The resulting flame was used both for lighting the compressed gunpowder track contained into the rotating discs time system, and to burn a big compressed gunpowder pellet located into the upper part of the plug tail and blocking the movements of the percussion graze action mobile pellet bearing the main starter. When the percussion behavior was acting, the landing shock propelled the freed percussion pellet on the percussion pin mounted on a static transversal bridge, and the flame was transmitted to the shell by a hole on the base of the plug tail.
The single rotating disc time system was a slight evolution of the one of the 'Schr Zdr 83 and 84', with hectometres graduations on the upper mobile disc (from 3 to 31.5), and equivalent graduations in combustion time on the lower static disc (from 1 to 13 seconds). These latters had been removed on the SchrapnellZunder 84 version, and were also sometimes masked under a black vernish on the new time and percussion fuzes. Whe the time behavior was acting, the portion of compressed gunpowder track burnt until the end of the selected duration, then the flame was tranmitted to the shell via 6 channels machined inside the time fuze body.
This evolution gave birth to two types of fuzes : the 2-discs 'Dopp Z c/85' time and percussion fuzes, and the single disc 'Dopp Z c/86' time and percussion fuze. This last one is by far the best known and was still sometimes used in 1914 on the shrapnell projectiles of the old9cm K 73/88 field gunsThese two fuzes therefore have an important role in the military pyrotechnics history, since they are the very first double effect (time and percussion) rotating discs fuzes of the German army, a prolific family that will include several variants between 1891 and 1916.
A very last evolution of the Richter system occured in 1888, with the mounting of a M 1888 exploder on the 1886 type time and percussion fuze body, mounted in the factory on the shell and still only receiving the removable concussion / percussion plug just before fire. The last pieces of this 'Dopp Z c/88' time and percussion fuze, ultimate evolution of the Richter systems with removable plugs, were used until 1916 mostly in a percussion behavior with the high explosive shells of the olds 12cm K heavy gunshttp://www.passioncompassion1418.com/decouvertes/english_fusees_collection_all.html#DoppZ91
REGISTERED AIR MAIL
Appeared in Germany in 1869, the Richter system revolutionned the fuzes technique with the introduction of revolving discs pyrotechnic time mechanisms. It evolved for about 20 years, giving birth to several types of time fuzes with growing complexity, before the apparition of the next generation in 1891. A very important evolution step of this evolution was reached in 1885 : until then, the Richter system evolutions only created t...ime fuzes, but that year a new removable plug, completely redesigned, allowed to a new fuzes evolution to behave as 'double effect' fuzes, that is Time and Percussion.
This new removable plug, called 'DoppZdrSchr c/85' ('DoppelZundersSchraube c/85') was protected under a steel cap giving it a characteristic egg profile. It included both the concussion system and a percussion system copied from the 'Gr Z c/80' percussion fuzes. It was assembled before the shooting on 1- or 2- revolving discs time system bodies, similar to the new profile of the time fuzes 'Schr Zdr 83 and 84'.
A second version of removable double effect plugs version named 'DoppZdrSchr c/86' ('DoppelZundersSchraube c/86') introduced the new graze action mobile pellet and percussion pin mounted on a transversal bridge that was later to equip several fuzes beginning with the time and percussion 'Dopp Z 91'.
The fuze removable plug had mushroom shape. This upper mobile mass head included two starters placed in front of two percussion pins mounted on the static body and protected by a tulip shaped spring. The departure shock made the 'mushroom' head move back and flatten the spring, causing the starter to be triggered. The resulting flame was used both for lighting the compressed gunpowder track contained into the rotating discs time system, and to burn a big compressed gunpowder pellet located into the upper part of the plug tail and blocking the movements of the percussion graze action mobile pellet bearing the main starter. When the percussion behavior was acting, the landing shock propelled the freed percussion pellet on the percussion pin mounted on a static transversal bridge, and the flame was transmitted to the shell by a hole on the base of the plug tail.
The single rotating disc time system was a slight evolution of the one of the 'Schr Zdr 83 and 84', with hectometres graduations on the upper mobile disc (from 3 to 31.5), and equivalent graduations in combustion time on the lower static disc (from 1 to 13 seconds). These latters had been removed on the SchrapnellZunder 84 version, and were also sometimes masked under a black vernish on the new time and percussion fuzes. Whe the time behavior was acting, the portion of compressed gunpowder track burnt until the end of the selected duration, then the flame was tranmitted to the shell via 6 channels machined inside the time fuze body.
This evolution gave birth to two types of fuzes : the 2-discs 'Dopp Z c/85' time and percussion fuzes, and the single disc 'Dopp Z c/86' time and percussion fuze. This last one is by far the best known and was still sometimes used in 1914 on the shrapnell projectiles of the old9cm K 73/88 field gunsThese two fuzes therefore have an important role in the military pyrotechnics history, since they are the very first double effect (time and percussion) rotating discs fuzes of the German army, a prolific family that will include several variants between 1891 and 1916.
A very last evolution of the Richter system occured in 1888, with the mounting of a M 1888 exploder on the 1886 type time and percussion fuze body, mounted in the factory on the shell and still only receiving the removable concussion / percussion plug just before fire. The last pieces of this 'Dopp Z c/88' time and percussion fuze, ultimate evolution of the Richter systems with removable plugs, were used until 1916 mostly in a percussion behavior with the high explosive shells of the olds 12cm K heavy gunshttp://www.passioncompassion1418.com/decouvertes/english_fusees_collection_all.html#DoppZ91
REGISTERED AIR MAIL
