Apparatus for setting the ignition timing in projectile fuses

摘要

In a fuse for projectiles, a timing ring is mounted rotatably around the longitudinal axis of the fuse, whereby the ignition time or the ignition delay time may be set. To resist rotation of the set timing ring, the timing ring is secured by means of a friction system comprising a friction ring with a friction nut abutting against it. By screwing-down the friction nut, a frustoconical outer surface of the friction nut bears against a frustoconical inner surface of the friction ring to increase the resistance to rotation of the friction ring and thus the timing ring.