GB702820A - Improvements relating to the breech block mechanism of firearms - Google Patents
Improvements relating to the breech block mechanism of firearmsInfo
- Publication number
- GB702820A GB702820A GB26415/52A GB2641552A GB702820A GB 702820 A GB702820 A GB 702820A GB 26415/52 A GB26415/52 A GB 26415/52A GB 2641552 A GB2641552 A GB 2641552A GB 702820 A GB702820 A GB 702820A
- Authority
- GB
- United Kingdom
- Prior art keywords
- breech
- breech block
- movement
- ring
- spring
- 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
Links
- 238000010276 construction Methods 0.000 abstract 1
- 238000013016 damping Methods 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000000994 depressogenic effect Effects 0.000 abstract 1
- 230000005484 gravity Effects 0.000 abstract 1
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
- F41A3/00—Breech mechanisms, e.g. locks
- F41A3/02—Block action, i.e. the main breech opening movement being transverse to the barrel axis
- F41A3/10—Block action, i.e. the main breech opening movement being transverse to the barrel axis with sliding breech-block, e.g. vertically
-
- 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
- F41A3/64—Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings
- F41A3/78—Bolt buffer or recuperator means
- F41A3/90—Fluid buffers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Damping Devices (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
702,820. Ordnance. AKTIEBOLAGET BOFORS. Oct. 21, 1952 [Oct. 24, 1951], No. 26415/52. Class 92(2) Means are provided for decreasing the speed of movement of a transversely sliding breech block during the latter part of its closing movement. In the construction shown, the barrel 1 and breech ring 2 are mounted to recoil with respect to a part 20. The breech ring has guides for the vertically sliding breech block 6 whose movements are effected by a lever 8 on a shaft 9, the latter being connected to an operating arm and being under the control of a coil spring in a casing 10. Stops 4, 5, limit the downward movement of the breech block to its breech closing position. The drawing shows the barrel in the run-out position and prior to the release of a locking device which, when released, permits the breech block to descend by gravity and by the additional force of the recoil spring. Just before it reaches the stops 4, 5 the breech block encounters the upper ends of two spring-urged rods 16, 17, which are mounted in the breech ring and which during the run-out have been brought to a position above the free ends of two levers 18, 19 pivoted on the part 20. The levers are thereby depressed by the descending breech block and in turn serve to depress the rods 21, 22, of pistons working in cylinders 23, 24, connected to an oil tank 30. Each cylinder is grooved internally to allow the slow passage of oil past the piston, thus damping the final downward movement of the breech block.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE310272X | 1951-10-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB702820A true GB702820A (en) | 1954-01-20 |
Family
ID=20307617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB26415/52A Expired GB702820A (en) | 1951-10-24 | 1952-10-21 | Improvements relating to the breech block mechanism of firearms |
Country Status (5)
Country | Link |
---|---|
US (1) | US2800837A (en) |
CH (1) | CH310272A (en) |
DE (1) | DE918192C (en) |
FR (1) | FR1065021A (en) |
GB (1) | GB702820A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3142457A1 (en) * | 1981-10-27 | 1983-05-05 | Wegmann & Co, 3500 Kassel | DEVICE FOR AUTOMATICALLY OPENING THE LOCKING WEDGE ON A SEMI-AUTOMATIC ARMS SYSTEM |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE237521C (en) * | ||||
DE138344C (en) * | 1900-07-12 | |||
AT79167B (en) * | 1917-03-22 | 1919-11-25 | Gabriel Ing Szakats | Temposing device for firearms with a rotating feeder and for projectiles with a rotating temp ring. |
US1351141A (en) * | 1920-04-28 | 1920-08-31 | Thomas F Ryan | Buffer |
US1548708A (en) * | 1923-09-24 | 1925-08-04 | John M Browning | Recoil buffer for automatic guns |
BE337416A (en) * | 1926-01-22 | |||
US2410116A (en) * | 1935-12-12 | 1946-10-29 | Vickers Inc | Breech actuating and control system |
CH200709A (en) * | 1937-12-13 | 1938-10-31 | Oerlikon Buehrle Ag | Automatic firearm. |
CH214927A (en) * | 1940-07-26 | 1941-05-31 | Oerlikon Buehrle Ag | Automatic mass-locked firearm. |
GB577010A (en) * | 1941-05-30 | 1946-05-01 | Spirito Mario Viale | Improvements in or relating to buffers or cushioning devices for machine guns |
US2354080A (en) * | 1942-04-06 | 1944-07-18 | Colt S Mfg Co | Automatic firearm breechblock stop |
-
1952
- 1952-10-21 GB GB26415/52A patent/GB702820A/en not_active Expired
- 1952-10-21 US US316034A patent/US2800837A/en not_active Expired - Lifetime
- 1952-10-22 DE DEA16720A patent/DE918192C/en not_active Expired
- 1952-10-22 CH CH310272D patent/CH310272A/en unknown
- 1952-10-24 FR FR1065021D patent/FR1065021A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2800837A (en) | 1957-07-30 |
FR1065021A (en) | 1954-05-19 |
DE918192C (en) | 1954-09-20 |
CH310272A (en) | 1955-10-15 |
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