Amusement firework, has tubes cooperating with firework pieces having fuses whose lengths are chosen in desired manner in order to introduce them into any tube to define sequence and time for firing pieces

摘要

The firework has a series of tubes (20-29) cooperating with firework pieces (10-13). Each tube has an inflammable composition (30) and is traversed by a common consumable cord (31) to constitute a sequential pyrotechnic chain. The pieces are provided with fuses (40-43) whose lengths are chosen in a desired manner in order to introduce them into any tube to define sequence and time for firing the pieces.