| 摘要 |
A cracker (36) is disclosed which includes a barrel (18) and at least one expulsion device (34) provided in said barrel (18) for expelling a charge of delivery material (32) outside of said barrel (18). The expulsion device (34) contains the charge of delivery material (32) and may be configured upon activation to expel it from the barrel (18) in an expulsion direction (44) which is angled relatively to the cracker's primary axis (46), for example at a right angle thereto. Typically a pyrotechnic device (24) is provided to expel the delivery material (32), but spring-loaded and compressed-air mechanisms are also disclosed. The expulsion device (34) may be modified from a conventional party popper but other embodiments include a two-part structure consisting of a cup-shaped inner vessel enclosed by an outer receptacle, a further device defining a sloped outer surface, and yet another having a hinged lid to facilitate loading. |
