Ammunition and explosives – Projectiles – Composite
Patent
1981-12-23
1984-04-10
Tudor, Harold J.
Ammunition and explosives
Projectiles
Composite
102501, F42B 3100
Patent
active
044414293
ABSTRACT:
A retainer for attaching a rotating band to a projectile during handling ramming of the projectile. The retainer cooperates with a groove on the projectile and is discarded during firing of the projectile by the force of the charge. An interlocking double split ring forms the retainer with an outer ring having an L-shaped cross-section and an inner ring shaped to fit into the L-shape of the outer ring. Each ring is provided with a split or opening to allow for expansion of the ring over the projectile and into the projectile groove. The outer ring split may be cut at an angle of less than 90.degree. to minimize deflection of the outer ring. The inner and outer rings are assembled with their splits together and then clocked 180.degree. apart. The inner ring is then locked to the outer ring by a locking notch. Hoop stress of the outer ring prevents the inner ring from deflecting at the split such that the retainer is forced to behave as a continuous single ring.
REFERENCES:
patent: 1007223 (1911-10-01), McNair
patent: 2897022 (1959-07-01), Marola
patent: 3687079 (1972-08-01), Scollins
patent: 3744426 (1973-07-01), Butler
patent: 4109582 (1979-08-01), Haep et al.
patent: 4197801 (1980-04-01), LaFever et al.
Simonds et al., "Nylon as a Plastic," The New Plastics, 1945, pp. 26-33.
Burnley, III William S.
Price Abner B.
Beers R. F.
Davis Tyrone
Henderson W. R.
The United States of America as represented by the Secretary of
Tudor Harold J.
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