Ordnance – Barrels – Recoil absorbers and climb arrestors
Patent
1993-09-20
1995-01-31
Brown, David
Ordnance
Barrels
Recoil absorbers and climb arrestors
F41A 2134, F41A 2136
Patent
active
053850793
DESCRIPTION:
BRIEF SUMMARY
This invention relates to a vortices-activated muzzle stabiliser for a gun.
Muzzle compensators for guns are well known. The muzzle compensators are used on many different types of guns and they tend to act to reduce recoil but they give little control on barrel movement. The known muzzle compensators deflect the gases, usually sideways, such that they only control muzzle movement in one direction.
It is an aim of the present invention to obviate or reduce the above mentioned problem.
Accordingly, this invention provides a vortices-activated muzzle stabilser for a gun, which muzzle stabiliser comprises a cylindrical body having:
(i) a single main vent slot which defines a main gas deflection area by extending inwardly at an angle of less than 40 degrees to the longitudinal axis of the body from a peripheral portion of the body to a central portion of the body, and which deflects the gases in the form of gas vortices;
(ii) a balancing slot which extends at 90 degrees to the longitudinal axis of the body and which is positioned opposite the main vent slot;
(iii) a barrel connecting bore for affording a connecting passage between the muzzle stabiliser and the barrel of the gun; and
(iv) a gas exhaust aperture which is positioned at a downstream end of the body.
Unlike known muzzle compensators, the muzzle stabiliser of the present invention operates on gas vortices generated during the firing of the gun. The muzzle stabiliser enables the gas vortices to be deflected and directed as required to balance the muzzle. The muzzle stabiliser not only reduces recoil but is able to control the movement of the barrel of the gun in three directions. The muzzle stabiliser may be used on all types of guns. Thus, for example, the muzzle stabiliser may be used on rifles, hand guns and cannons, and the guns may be used for military or civilian purposes as required.
The main vent slot may extend inwardly at an angle of 15-35 degrees to the longitudinal axis of the body. Preferably, the main vent slot extends inwardly at an angle of 25 degrees to the longitudinal axis of the body.
The main vent slot may deflect the gas in the form of two vortices which extend away from each other at an angle of 45 degrees and which define between them a substantially solid wall of gas during firing of the gun.
The muzzle stabilser may include an insert positioned in the barrel connecting bore, the insert having a sloping end which extends inwardly at an angle of less than 90 degrees to the longitudinal axis of the body, the sloping end having a slot positioned adjacent the balancing slot so that the sloping end does not block the balancing slot, and the insert being such that it causes a low gas pressure between the insert and an inside wall of the body during use of the vortices-activated muzzle stabiliser.
The muzzle stabiliser may be such that it is able to be rotatably adjusted for right or left handed persons.
The balancing slot will usually be constructed to be proportional to the size of the barrel connecting bore and the size of the gas exhaust aperture.
If desired, the body may be provided with a gas brake device. The gas brake device may comprise a gas diverting aperture which extends completely through the gas brake device and at 90 degrees to the longitudinal axis of the body.
The body may be made in one piece. Alternatively, if desired, the body may be made in two or more parts.
The muzzle stabiliser may include a flash hider which operates to suppress flash consequent upon firing of the gun. Since the flash hider operates to break up the exhaust gases, care should be taken to ensure that the flash hider does not adversely affect the compensation. The flash hider may be any known and suitable type of flash hider.
The muzzle stabiliser may be one in which the body is made in two relatively rotatable parts which are rotateable from a first position in which the muzzle stabiliser operates in a muzzle stabilising mode to second position in which the muzzle stabiliser operates in a flash suppressing mode.
Embodiments of the invention w
REFERENCES:
patent: 1429619 (1922-09-01), Nelson
patent: 2953972 (1960-09-01), Sorensen
patent: 3155003 (1964-11-01), Ruth
patent: 3492750 (1970-02-01), Ashbrook et al.
patent: 3698747 (1972-10-01), Wing et al.
patent: 4643073 (1987-02-01), Johnson
patent: 4879942 (1989-11-01), Cave
patent: 5092223 (1992-03-01), Hudson
Brown David
Datestyle Limited
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