Expellable reaction mass for recoilless projectile launchers

Details Expellable reaction mass for recoilless projectile launchers Expellable reaction mass for recoilless projectile launchers

1977-06-24

1979-01-02

Brown, David H.

Ordnance

Recoilless gun

Having a reaction mass

89 1704, F41F 302

Patent

active

041321480

ABSTRACT:
A reaction mass for a launching tube having a centrally positioned propellant charge for propelling a missile at its forward end and a reaction mass located rearwardly of the propellant charge which is propelled at the rear end, comprises an inert, readily fragmentizing, expellable reaction mass comprising a glass material which is internally prestressed and which disintegrates at the launch. The reaction mass is advantageously in the form of a glass cylinder which is either connected to a metallic pusher member arranged rearwardly of the propellant charge which is pushed by the ignition of the charge in a rearward direction, or it may comprise a glass cylinder which includes its own pusher head formation. The pusher itself is arrested by a brake positioned at the rear exit. In addition, the rear exit is closed by a diaphragm which may shatter after ignition of the propellant charge. The reaction mass may also comprise a front pusher face which is engaged with a rear brake positioned at the rear opening or it may comprise a plurality of layers of glass held to a pusher head which is arrested at the rear opening. In still another embodiment, the glass may comprise a plurality of flat discs held together in an assembly to a pusher member.

REFERENCES:
patent: 3771417 (1973-11-01), Schnabele et al.
patent: 3796128 (1974-03-01), Zeyher
patent: 4050351 (1977-09-01), Stauff

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