| 摘要 |
1. Practice ammunition for artillery equipment, consisting of a tube (1) of plain steel of low mechanical strength, characterized in that only the outer surface of the tube is machined so as to obtain in only one operation the projections which the ammunition must exhibit, in particular at thrust band (2), and in that the tube includes at the front end of it a closure (3) upon which is supported a pot (4) containing a smoke-producting composition or substance, the ammunition thus exhibiting a strong aerodynamic drag and its body forming a chamber of large volume for the development of the gases of propulsion. |
