US2632272A - Firearm safety device - Google Patents
Firearm safety device Download PDFInfo
- Publication number
- US2632272A US2632272A US158421A US15842150A US2632272A US 2632272 A US2632272 A US 2632272A US 158421 A US158421 A US 158421A US 15842150 A US15842150 A US 15842150A US 2632272 A US2632272 A US 2632272A
- Authority
- US
- United States
- Prior art keywords
- coupling sleeve
- barrel
- breech block
- receiver
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
- F41A21/48—Barrel mounting means, e.g. releasable mountings for replaceable barrels
- F41A21/481—Barrel mounting means, e.g. releasable mountings for replaceable barrels using partial or interrupted threads, e.g. bayonet-type mountings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A17/00—Safety arrangements, e.g. safeties
- F41A17/34—Magazine safeties
- F41A17/38—Magazine mountings, e.g. for locking the magazine in the gun
Definitions
- This invention relates to a safety device for a nre arm of the type wherein barrels are frequently changed or removed, and more particularly to an arrangement in which the insertion of the magazine is blocked unless the barrel is properly locked in place.
- the re arm may be unintentionally discharged by rotation of the barrel either from firing shocks or from other causes. Such firing may damage or completely ruin the fire arm as Well as cause personnel casualty.
- Fig. 1 is a partial longitudinal section of a re arm showing the barrel coupling sleeve in locked position
- Fig. 2 is a view similar to Fig. 1 but showing the barrel coupling sleeve unlocked;
- Fig. 3 is an end vievir of the barrel locking sleeve
- Fig. 4 is a plan View of the barrel locking sleeve.
- the barrel of the iire arm which in the case to be described may be considered to be the barrel of a magazine fed machine gun, is removably placed in the casing 2 of the breech block and secured in operative position by a barrel coupling sleeve 3 movably or rotatably mounted on the breech block casing.
- the coupling sleeve 3 is provided with conventional threads li interrupted by longitudinally extending cross cuts 5, the shape and arrangement of which are identical with longitudinal thread segments on the rear end of the barrel I. To unlock the barrel, the sleeve 3 is rotated by arm 6.
- a receiver l is formed, vthe front Wall of which is provided with a depression 8 for receiving a cam-like projection 3 on the front wall of the magazine IG. IIhe magazine is further secured in operative position by a spring urged detent member II positioned in the rear portion of the diminuait. l
- the reference character I2 indicates generally the breech block support governing the function ci the re arm and has no particular function relative to the invention itself.
- the construction of parts is arranged so that the barrel coupling sleeve 3 and the adjacent part of the breech block casing are provided with cooperating members movable in dependence upon the position of the coupling sleeve in a manner such as to permit the magazine I0 to be inserted into the re arm only when the coupling sleeve 3 is in completely locked position.
- these members comprise a governing member formed in the barrel coupling sleeve 3 and a cooperating member which can be moved into the receiver l to block the insertion of a magazine I0 by the rotation of the governing member.
- the governing member comprises a bent or curved groove I3 in the rear wall of the barrel coupling sleeve 3. Groove I3 is formed with the sleeve preferably in such a manner that the position of its beginning and its end cover the extreme positions of movement, that is the locking and unlocking positions of the coupling sleeve.
- the groove I3 is of a length equal to the movement of the operating arm 6 of the coupling sleeve from the solidly indicated fully locked position to the dotted unlocked position, both particularly shown in Fig. 3.
- the groove I3 is not of constant depth throughout its length but is formed so that its depth progresses from the beginning of the groove Whereat it is slight gradually toward the end of the groove in a vertical plane through the sleeve 3 Whereat it reaches a maximum.
- the profile of the bottom of the groove can be straight or suitably curved as, for example, a helical or screw shape.
- a longitudinally slidable member or pin I5 slidably positioned in a guiding bore in the breech block casing 2 and intermediate the ends of which is an enlarged aperture Ifl containing a spring surrounding the pin I5 and positioned between a wall or shoulder of said aperture and a suitable abutment secured to the pin I5.
- the pin is thereby positioned in the breech block casing 2 opposite the end of the curved groove I3.
- This slidable member or pin I5 may be formed in various manners but in the embodimentI shown in the drawing it is shown as a straight pin l urged under the pressure of spring I6 in engagement with the bottom of the curved groove I3 of the barrel coupling sleeve 3.
- the length of the pin I5 is such that the pin in the locked position of coupling sleeve 3 is urged into the deep end of said groove and within its guiding bore so that the opposite end does not project into the receiver 1.
- the pin l5 in this normal or locked position does not project into the depression 8 for the cam 9 of the magazine and this permits the magazine and cam to be readily inserted into the receiver 1. If, however, for any reason the barrel coupling sleeve 3 is unlocked or rotated, the sloping bottom of the groove I3 urges the pin l5 rearwardly into the depression 8 and ultimately into the receiver itself, thereby blocking the insertion of a magazine thereinto and warning the operator or gunner to duly lock the barrel coupling sleeve and barrel in place before being able to insert the magazine in preparation for firing.
- the safety members are not at all limited to the example specied and therefore, can be constructed in other ways without departing from the true spirit and scope of the invention.
- the groove on the coupling sleeve may be replaced by a proled projection and the movable safety member arranged as a system of piston rods or levers.
- the invention also is not limited to fire arms in which the combustion gases are taken off through the barrel but can also be used for fully automatic fire arms.
- the invention can be adapted to use with fire arms fed with ammunition from a cartridge belt, the safety member merely blocking further feed of ammunition thereinto.
- a barrel In a re arm, a barrel, a breech block casing, a rotatable coupling sleeve adapted to couple and uncouple said barrel to and from said breech block casing, a receiver formed in said breech block casing, a safety member movably mounted in said breech block casing between said receiver and said rotatable coupling sleeve, and means carried by said coupling sleeve for moving said member into said receiver upon rotation of said coupling sleeve.
- a barrel In a fire arm, a barrel, a breech block casing, a rotatable coupling sleeve adapted to couple and uncouple said barrel to and from-said breech block casing, a receiver formed in said breech block casing, a pin slidably mounted in said breech block casing between said receiver and said coupling sleeve, and means carried by said coupling sleeve for moving said pin into said receiver upon rotation of said coupling sleeve.
- a fire arm a barrel, a breech block casing, a rotatable coupling sleeve adapted to couple and uncouple said barrel to and from said breech block casing, said coupling sleeve having a locked position determining one limit of its rotation, a receiver formed in said breech block casing, a pin slidably mounted in said breech block casing between said receiver and said rotatable coupling sleeve, resilient means within said breech block casing for urging said pin toward said coupling sleeve, and means carried by said coupling sleeve for moving said pin against the tension of said resilient means into said receiver upon rotation of said coupling sleeve from its locked position.
- a fire arm a barrel, a breech block casing, a rotatable coupling sleeve adapted to couple and uncouple said barrel to and from said breech block casing, said coupling sleeve having a locked position determining one limit of rotation, a receiver formed in said breech block casing, a pin movably mounted in said breech block casing between said receiver and said rotatable coupling sleeve, said coupling sleeve in the end adjacent said breech block casing having formed therein a groove of gradually increasing depth,
- I spring means carried within said breech block casing urging said pin into the deep end of said groove when said coupling sleeve is in locked position, the pin being of such length that the opposite end of said pin is thereby retracted out of said receiver.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Portable Nailing Machines And Staplers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS282425X | 1949-04-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
US2632272A true US2632272A (en) | 1953-03-24 |
Family
ID=5451972
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US158421A Expired - Lifetime US2632272A (en) | 1949-04-29 | 1950-04-27 | Firearm safety device |
Country Status (5)
Country | Link |
---|---|
US (1) | US2632272A (fr) |
BE (1) | BE495177A (fr) |
CH (1) | CH282425A (fr) |
FR (1) | FR1016502A (fr) |
GB (1) | GB672072A (fr) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2747313A (en) * | 1953-02-12 | 1956-05-29 | Remington Arms Co Inc | Barrel to receiver connection on a firearm |
US2832507A (en) * | 1953-06-05 | 1958-04-29 | John W Beatty | Dispensing apparatus |
US3252237A (en) * | 1964-09-21 | 1966-05-24 | Korzeniewski Robert | Gun barrel seating device |
EP0234287A1 (fr) * | 1986-02-27 | 1987-09-02 | Werkzeugmaschinenfabrik Oerlikon-Bührle AG | Dispositif pour verrouiller les canons sur une arme à feu à tubes multiples |
US4920679A (en) * | 1988-09-21 | 1990-05-01 | Sarles J Stephen | Firearm with detachable barrel |
DE19743557C1 (de) * | 1997-10-01 | 1999-03-25 | Sig Schweiz Industrieges | Magazin-Arretierung an einer Handfeuerwaffe |
EP1750079A1 (fr) * | 2005-08-06 | 2007-02-07 | Rheinmetall Waffe Munition GmbH | Dispositif pour le montage et verrouillage d'une culasse et d'un canon d'une arme |
US20100281731A1 (en) * | 2007-08-30 | 2010-11-11 | Ra Brands, L.L.C | Pivoting, non-detachable magazine |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1696537A (en) * | 1927-04-13 | 1928-12-25 | John T Kewish | Automatic firearm |
US1738500A (en) * | 1928-10-19 | 1929-12-03 | Colt S Mfg Co | Barrel mounting for firearms |
-
0
- BE BE495177D patent/BE495177A/xx unknown
-
1950
- 1950-04-17 CH CH282425D patent/CH282425A/de unknown
- 1950-04-19 FR FR1016502D patent/FR1016502A/fr not_active Expired
- 1950-04-25 GB GB10196/50A patent/GB672072A/en not_active Expired
- 1950-04-27 US US158421A patent/US2632272A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1696537A (en) * | 1927-04-13 | 1928-12-25 | John T Kewish | Automatic firearm |
US1738500A (en) * | 1928-10-19 | 1929-12-03 | Colt S Mfg Co | Barrel mounting for firearms |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2747313A (en) * | 1953-02-12 | 1956-05-29 | Remington Arms Co Inc | Barrel to receiver connection on a firearm |
US2832507A (en) * | 1953-06-05 | 1958-04-29 | John W Beatty | Dispensing apparatus |
US3252237A (en) * | 1964-09-21 | 1966-05-24 | Korzeniewski Robert | Gun barrel seating device |
EP0234287A1 (fr) * | 1986-02-27 | 1987-09-02 | Werkzeugmaschinenfabrik Oerlikon-Bührle AG | Dispositif pour verrouiller les canons sur une arme à feu à tubes multiples |
US4735125A (en) * | 1986-02-27 | 1988-04-05 | Werkzeugmaschinenfabrik Oerlikon-Buhrle Ag | Holding apparatus for weapon barrels of a multi-barrel firing weapon |
US4920679A (en) * | 1988-09-21 | 1990-05-01 | Sarles J Stephen | Firearm with detachable barrel |
DE19743557C1 (de) * | 1997-10-01 | 1999-03-25 | Sig Schweiz Industrieges | Magazin-Arretierung an einer Handfeuerwaffe |
EP0907065A2 (fr) | 1997-10-01 | 1999-04-07 | SIG Arms International AG | Arrêtoir pour verrouiller un magasin dans une arme à feu |
EP1750079A1 (fr) * | 2005-08-06 | 2007-02-07 | Rheinmetall Waffe Munition GmbH | Dispositif pour le montage et verrouillage d'une culasse et d'un canon d'une arme |
US20100281731A1 (en) * | 2007-08-30 | 2010-11-11 | Ra Brands, L.L.C | Pivoting, non-detachable magazine |
US7941955B2 (en) | 2007-08-30 | 2011-05-17 | Ra Brands, L.L.C. | Pivoting, non-detachable magazine |
Also Published As
Publication number | Publication date |
---|---|
CH282425A (de) | 1952-04-30 |
BE495177A (fr) | |
FR1016502A (fr) | 1952-11-14 |
GB672072A (en) | 1952-05-14 |
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