US3882625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Breech mechanism for guns
Assignee: Individual
•
Filing: 1974-01-23
•
Granted: 1975-05-13
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Expires: 1994-01-23
Abstract
Abstract A breech mechanism for a gun having an extractor which can engage an ammunition casing to effect withdrawal of the casing and ejection of the casing laterally of the gun. To provide for rightwards or leftwards ejection of a casing from the gun as desired, the mechanism is provided with two housings to form a pair of locations in which the extractor can be positioned. One location provides for ejection of the casing to one side of the gun and the other location provides for ejection to the other side of the gun when the extractor is positioned in the one or the other location. In one embodiment, the extractor is mounted in a part of the breech mechanism and is rotated between the two locations; and in other embodiments the extractor can be removed manually from one housing and inserted in another housing.
Inventors
- 👤 Paul Emile Francois Tellie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:53
CPC Classifications
F; F41; F41A; F41A35/00; F41A35/06; F41A15/00; F41A15/12; F41A15/14; F41A3/00; F41A3/12
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
128 words
A breech mechanism adapted for mounting in a gun and comprising; an extractor which is engageable with an ammunition casing to effect withdrawal of the casing and to effect ejection of the casing laterally of the gun when the breech mechanism is mounted in the gun; and housing means provided by the mechanism to form a pair of locations for the extractor, the extractor being positionable in a selected location of said pair of locations, and one of said locations providing for ejection of a casing to one side of the mechanism when the extractor is positioned in said one location and the other of said location providing for ejection of casing to the other side of the mechanism when the extractor is positioned in said other location.
Claim 2
Dependent Claim
128 words
A breech mechanism adapted for mounting in a gun and comprising; an extractor which is engageable with an ammunition casing to effect withdrawal of the casing and to effect ejection of the casing laterally of the gun when the breech mechanism is mounted in the gun; and housing means provided by the mechanism to form a pair of locations for the extractor, the extractor being positionable in a selected location of said pair of locations, and one of said locations providing for ejection of a casing to one side of the mechanism when the extractor is positioned in said one location and the other of said location providing for ejection of casing to the other side of the mechanism when the extractor is positioned in said other location.
Claim 3
Dependent Claim
29 words
A breech mechanism according to claim 1, in which said locations provided by the mechanism are symmetrically arranged with respect to a vertical plane of symmetry of the mechanism.
Claim 4
Dependent Claim
21 words
A breech mechanism according to claim 1, including a detachable piece for mounting in the locating not occupied by the extractor.
Claim 5
Dependent Claim
71 words
A breech mechanism according to claim 1, having a breech block comprising a breech member and a breech head, said extractor being mounted in said breech head, said breech block being reciprocable along an axis during usual loading and unloading operations of the breech block, and said breech head being rotatable about said axis relative to the breech member in order to effect positional movement of the extractor between said locations.
Claim 6
Dependent Claim
93 words
A breech mechanism according to claim 4, including a locking pin carried by the breech member, a pair of angularly spaced sockets provided in the breech head and each adapted to receive the end of the locking pin whereby the breech head can be locked to the breech member in either one of two angular positions about said axis during reciprocation of the breech block, one angular position corresponding to positioning of the extractor in said one location and the other angular position corresponding to positioning of the extractor in said other location.
Claim 7
Dependent Claim
91 words
A breech mechanism according to claim 1, having a breech block comprising a breech member and a detachable breech head, and two housing portions provided in said breech member for receiving the extractor to provide said locations therefor, said breech block being reciprocable along an axis during usual loading and unloading operations of the breech mechanism, and said breech head being detachable from, and moveable axially relative to, the breech member to enable the extractor to be removed from one housing portion and to be positioned in the other housing pOrtion.
Claim 8
Dependent Claim
73 words
A breech mechanism according to claim 1, having a breech block comprising a breech member and a sleeve detachably connected thereto, and two housing portions provided in said sleeve to form said locations for the extractor; said sleeve being connectible fast with the breech member for movement therewith and being detachable therefrom to permit transfer of the extractor from one housing portion of the sleeve to the other housing portion of the sleeve.
Claim 9
Dependent Claim
48 words
A breech mechanism according to claim 1, having a breech block, a casing ejector of the fixed type, two housing portions provided in the breech block to form said locations for the extractor, and a vertical passage provided in the breech block in which the ejector is receivable.
Claim 10
Dependent Claim
163 words
A gun having a breech mechanism comprising; an extractor which is engageable with an ammunition casing to effect withdrawal of the casing and to effect ejection of the casing laterally of the gun; housing means provided by the mechanism to form a pair of locations for the extractor, the extractor being positionable in a selected location of said pair of locations and one of said locations providing for ejection of a casing to one side of the gun when the extractor is positioned in said one location and the other of said locations providing for ejection of a casing to the other side of the gun when the extractor is positioned in said other location; and a pair of ejector openings provided in the gun and each corresponding to a respective one of said locations whereby, when the extractor is positioned in a given location, the casing can be ejected laterally of the gun through the ejector opening corresponding to said given location.
Claim 11
Dependent Claim
163 words
A gun having a breech mechanism comprising; an extractor which is engageable with an ammunition casing to effect withdrawal of the casing and to effect ejection of the casing laterally of the gun; housing means provided by the mechanism to form a pair of locations for the extractor, the extractor being positionable in a selected location of said pair of locations and one of said locations providing for ejection of a casing to one side of the gun when the extractor is positioned in said one location and the other of said locations providing for ejection of a casing to the other side of the gun when the extractor is positioned in said other location; and a pair of ejector openings provided in the gun and each corresponding to a respective one of said locations whereby, when the extractor is positioned in a given location, the casing can be ejected laterally of the gun through the ejector opening corresponding to said given location.
Claim 12
Dependent Claim
55 words
A gun according to claim 9, in which the breech mechanism comprises a breech block having a first part and a second part, a locking pin carried by the first part, and socket means provided in the second part and adapted to receive the locking pin detachably to connect together the first and second parts.
Claim 13
Dependent Claim
31 words
A gun according to claim 10, including a shoulder provided on the locking pin engageable by the collar of an ammunition casing to effect axial unlocking movement of the locking pin.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-12 | 1978-11-11 | 1979-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-12 | 1982-11-11 | 1983-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-12 | 1986-11-11 | 1987-05-13 | $7700.00 | Window Closed / Lapsed |