Increment charge for a finned projectile

Ammunition and explosives – Having radially directed propelling holes – Including external propellent charge

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102288, F42B 1326

Patent

active

045438854

ABSTRACT:
Increment charge for a finned projectile designed to surround a cartridge tube on the projectile and to be ignited by the ignition gases from a propellant and ignition cartridge included in the cartridge tube. The surface of the increment charge which faces the cartridge tube is enlarged in that it is provided with a number of recesses which provide access for the said ignition gases. The increment charge consists appropriately of a number of powder discs of horseshoe-shape, provided with holes, the inner edge of which is asymmetric relative to the aperture of the horeshoe-shape. Each alternate disc is inverted so that the shape of the hole edge is inverted in mirror fashion for each alternate disc.

REFERENCES:
patent: 1883758 (1932-10-01), Brandt
patent: 2069794 (1937-02-01), Woodberry
patent: 2210959 (1940-08-01), Storm
patent: 2620732 (1952-12-01), Hickman
patent: 2721518 (1955-10-01), Hickman
patent: 2918005 (1959-12-01), Schecter et al.
patent: 3017836 (1962-01-01), Guay
patent: 3638571 (1972-02-01), Gawlick et al.

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