| 摘要 |
<p>A mortar shell time fuse of the type which consists of a body and a head, and characterized because it is comprised of: (a) a secondary mass floating upon a return spring in a hole in the body; (b) means for holding the secondary mass at rest; (c) a gear train subjected to the action of a torsion spring and linked at rest with the secondary mass, and comprised of: (c1) means of retarding its rotation. (c2) means for the restraining and releasing of: (d) a shell holder with a rotation shaft subject to the action of a torsion spring.</p> |
