Ordnance – Recoilless gun – Having breech closure
Patent
1977-01-18
1978-11-21
Bentley, Stephen C.
Ordnance
Recoilless gun
Having breech closure
89 14R, F41F 302
Patent
active
041260775
ABSTRACT:
A system designed to reduce the recoil of any ball and powder type weapon such as guns, rifles, cannons or the like is disclosed. In a ball and powder type weapon the bullet or shell is propelled out of the barrel by the high pressure created by the explosion of the powder. Not only is the bullet or shell propelled out of the barrel but the air and other hot gasses are also jetted out of the barrel. Due to the fact that the air and other hot gasses are jetted out of the barrel, a vacuum is created in the barrel. After the shell or bullet and the hot gasses are jetted out of the barrel, air from the outside due to atmospheric pressure rushes back into the evacuated barrel and it is this rush of air back into the barrel that is the major cause of recoil in a ball and powder type weapon. The system of this invention reduces the recoil caused by this rush of air back into the barrel by providing a plurality of chambers that communicate with the bore of the weapon through separate channels or ports. A different one of the channels or ports couples each chamber to the bore of the weapon and each channel or port is provided with an adjustable needle valve. When the weapon is fired, some of the gasses in the bore flow into each chamber through the channels. When the bullet or shell exits from the barrel, the gasses in each chamber flow back into the evacuated bore. The gasses flowing back into the bore increase the pressure in the bore and create a cushion in the breech area of the weapon for the air entering the bore from the outside, thereby reducing the recoil of the weapon and the breech noise.
REFERENCES:
patent: 1469918 (1923-10-01), De Maine
patent: 3118342 (1964-01-01), Campione et al.
patent: 3457826 (1969-07-01), Stott
patent: 3730050 (1973-05-01), Goldin et al.
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