FR2248484A1 - Breech block for a carbine - pivot arm swings up to engage curved recess for automatic fire - Google Patents
Breech block for a carbine - pivot arm swings up to engage curved recess for automatic fireInfo
- Publication number
- FR2248484A1 FR2248484A1 FR7337996A FR7337996A FR2248484A1 FR 2248484 A1 FR2248484 A1 FR 2248484A1 FR 7337996 A FR7337996 A FR 7337996A FR 7337996 A FR7337996 A FR 7337996A FR 2248484 A1 FR2248484 A1 FR 2248484A1
- Authority
- FR
- France
- Prior art keywords
- block
- pivot arm
- breech block
- automatic fire
- breech
- 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.)
- Granted
Links
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
- F41A5/00—Mechanisms or systems operated by propellant charge energy for automatically opening the lock
- F41A5/18—Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated
-
- 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
- F41A3/00—Breech mechanisms, e.g. locks
- F41A3/12—Bolt action, i.e. the main breech opening movement being parallel to the barrel axis
- F41A3/36—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing
- F41A3/38—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing having rocking locking elements, e.g. pivoting levers or vanes
- F41A3/40—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing having rocking locking elements, e.g. pivoting levers or vanes mounted on the bolt
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Emergency Lowering Means (AREA)
Abstract
A breech block (1) is pushed into the closed position by rod (20) with a spring (20) around it and with a block (16) attached to the breech block by a pin (17) and with a buffer pad (19) which engages the arming lever (21) above the barrel (3). For automatic fire, when the breech block is forced backwards, a pivot arm (12) which fits inside a recess in the block swings up about a pivot pin (11) so that its cylindrical head (12') engages a curved recess (2') inside the upper surface of the breech housing, thus wedging it to use the gas pressure for maximum firing force. For single rounds, a different block is used to give a positive engaged or released position of the pivot arm (12) for the required braking action.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7337996A FR2248484A1 (en) | 1973-10-19 | 1973-10-19 | Breech block for a carbine - pivot arm swings up to engage curved recess for automatic fire |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7337996A FR2248484A1 (en) | 1973-10-19 | 1973-10-19 | Breech block for a carbine - pivot arm swings up to engage curved recess for automatic fire |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2248484A1 true FR2248484A1 (en) | 1975-05-16 |
FR2248484B3 FR2248484B3 (en) | 1978-03-10 |
Family
ID=9126894
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7337996A Granted FR2248484A1 (en) | 1973-10-19 | 1973-10-19 | Breech block for a carbine - pivot arm swings up to engage curved recess for automatic fire |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2248484A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4938116A (en) * | 1987-04-20 | 1990-07-03 | Royster John L | Recoil system for weapons with a reciprocating breech block |
FR3071049A1 (en) * | 2017-09-13 | 2019-03-15 | Philippe Antoine Morales | PERMANENT CYLINDER HEADER MECHANICAL SYSTEM FOR SEMI-AUTOMATIC REPETITION FIREARMS |
-
1973
- 1973-10-19 FR FR7337996A patent/FR2248484A1/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4938116A (en) * | 1987-04-20 | 1990-07-03 | Royster John L | Recoil system for weapons with a reciprocating breech block |
FR3071049A1 (en) * | 2017-09-13 | 2019-03-15 | Philippe Antoine Morales | PERMANENT CYLINDER HEADER MECHANICAL SYSTEM FOR SEMI-AUTOMATIC REPETITION FIREARMS |
Also Published As
Publication number | Publication date |
---|---|
FR2248484B3 (en) | 1978-03-10 |
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