Ammunition and explosives – Projectiles – Practice or cleaning
Patent
1988-10-03
1990-03-27
Tudor, Harold J.
Ammunition and explosives
Projectiles
Practice or cleaning
102489, 102498, 102517, 102520, F42B 800
Patent
active
049110802
ABSTRACT:
A practice projectile has a cylindrical casing having front and rear portions; a bottom section attached to the rear portion of the cylindrical casing; a frontal nose section including at least two subcomponents which have front and rear portions. The subcomponents can assume a closed position in which the projectile has an external configuration identical to that of a live projectile having the same caliber and an open position in which the subcomponents are in a spread-apart state at a given opening angle. The rear portion of the subcomponents is pivotally connected to the front portion of the cylindrical casing. There is further provided a device for holding the subcomponents together in the closed position prior to firing the projectile. The holding device is arranged to be overcome by centrifugal forces derived from a projectile spin subsequent to firing, to thereafter allow the subcomponents to assume the open position.
REFERENCES:
patent: 1152668 (1915-09-01), Sullivan
patent: 1166879 (1916-01-01), Alard
patent: 1276575 (1918-08-01), Ross
patent: 3013495 (1961-12-01), Stevenson et al.
patent: 3164092 (1965-01-01), Reed
patent: 4208968 (1980-06-01), Hubsch et al.
patent: 4408538 (1983-10-01), Deffayet et al.
patent: 4488490 (1984-12-01), Betts
patent: 4590862 (1986-05-01), Grabarek et al.
Leeker Jurgen
Rombach Rudolf
Rheinmetall GmbH
Tudor Harold J.
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