GB338888A - A pneumatic control device for automatic fire-arms - Google Patents
A pneumatic control device for automatic fire-armsInfo
- Publication number
- GB338888A GB338888A GB26083/29A GB2608329A GB338888A GB 338888 A GB338888 A GB 338888A GB 26083/29 A GB26083/29 A GB 26083/29A GB 2608329 A GB2608329 A GB 2608329A GB 338888 A GB338888 A GB 338888A
- Authority
- GB
- United Kingdom
- Prior art keywords
- breech
- chamber
- bolt
- air
- cap
- 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
- 230000000694 effects Effects 0.000 abstract 2
- 238000010304 firing Methods 0.000 abstract 2
- 230000004048 modification Effects 0.000 abstract 2
- 238000012986 modification Methods 0.000 abstract 2
- 238000004891 communication Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 abstract 1
- 238000013016 damping Methods 0.000 abstract 1
- 230000001105 regulatory effect 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
- F41A3/64—Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings
- F41A3/78—Bolt buffer or recuperator means
- F41A3/90—Fluid buffers
- F41A3/94—Fluid buffers in combination with spring buffers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
Abstract
338,888. Armamenti Militari Soc. Anon. June 6, 1929, [Convention date]. Breech actions, sliding breech-block.-Relates to a pneumatic control device for automatic firearms of the type in which the breech-bolt compresses air to damp the recoil movement, and consists in the provision of means for annulling the damping effect at the beginning and end of both the recoil and return strokes of the breechbolt. In the construction shown, the breech chamber 1 is closed at the rear end by a cap 4. A rod 9 integral with the breech-bolt 3 extends through the cap 4 and has grooves 11, 12 by means of which the air in the chamber is put in communication with the atmosphere at each end of its travel. During the opening movement of the breech-bolt, the air in the chamber 1 remains at atmospheric pressure until the groove 11 passes out of the cylinder. The air is then compressed until, near the end of the stroke, the chamber is again opened to atmospheric pressure through the groove 12. The return movement is effected by a spring 6 and is retarded by the reduction of pressure which takes place in the chamber. In a modification, the rod 9 is replaced by a spring-controlled valve in the cap 4, which valve is actuated by the recoiling breechbolt, and an air escape hole is also provided in the side of the chamber slightly to the rear of the breech-bolt when in its foremost position. In a further modification, a hole is provided in the side of the chamber and the breech-bolt has an axial hole entering it from the rear with a lateral forward outlet which comes opposite the hole in the breech chamber near the end of the recoil movement. An additional adjustable port may be provided in the wall of the breech chamber or in the cap 4, by means of which the braking effect of the air can be regulated to produce various firing speeds. Automatic firing is effected at the end of the closing movement by the tail of a striker pivoted in the breech-bolt contacting with a stop in the wall of the breech chamber.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT338888X | 1929-06-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB338888A true GB338888A (en) | 1930-11-27 |
Family
ID=11238423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26083/29A Expired GB338888A (en) | 1929-06-06 | 1929-08-27 | A pneumatic control device for automatic fire-arms |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US1803946A (en) |
| DE (1) | DE535599C (en) |
| GB (1) | GB338888A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7168184B2 (en) | 2000-04-13 | 2007-01-30 | Kit Shoe Limited | Shoes |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3739448A1 (en) * | 1987-09-07 | 1989-03-16 | Evitec Entwicklung Vertrieb | Automatic firearm |
| GB2423568B (en) * | 2005-02-23 | 2007-02-14 | Simon Trendall | A hydraulic breech mechanism for firearms |
| DE102012022683A1 (en) * | 2012-11-21 | 2014-05-22 | Rheinmetall Waffe Munition Gmbh | Mass lockable weapon locking system |
| IT201700080197A1 (en) * | 2017-07-17 | 2019-01-17 | Renzo Armellin | Device for firearm with single-acting shutter with labile closure with opening delay. |
| IT201700112064A1 (en) * | 2017-10-05 | 2019-04-05 | Renzo Armellin | Pneumatic device with movable shutter piston in large-caliber firearms with loose closure |
-
1929
- 1929-07-30 DE DES93079D patent/DE535599C/en not_active Expired
- 1929-08-21 US US387431A patent/US1803946A/en not_active Expired - Lifetime
- 1929-08-27 GB GB26083/29A patent/GB338888A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7168184B2 (en) | 2000-04-13 | 2007-01-30 | Kit Shoe Limited | Shoes |
Also Published As
| Publication number | Publication date |
|---|---|
| US1803946A (en) | 1931-05-05 |
| DE535599C (en) | 1931-10-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2299073A (en) | Gun | |
| US11629923B2 (en) | 3-cycle 2-stroke damper | |
| US3018694A (en) | Recoil absorbing mechanism for firearms | |
| US2566181A (en) | Fluid pressure operated gun | |
| US2119441A (en) | Rifle | |
| GB338888A (en) | A pneumatic control device for automatic fire-arms | |
| GB355170A (en) | Automatic firearm of the gas operated type | |
| GB379713A (en) | Improvements in automatic fire-arms | |
| US3289535A (en) | Breech operating mechanism for a gas pressure loader for guns | |
| GB711542A (en) | Improvements in or relating to air guns | |
| GB276894A (en) | An automatic fire arm | |
| GB476005A (en) | Improvements in and relating to air rifles | |
| US1344499A (en) | Automatic firearm | |
| US1464276A (en) | Automatic firearm | |
| US1845218A (en) | Gun | |
| US2088592A (en) | Recoil mechanism for guns | |
| SU152190A1 (en) | Shut-off valve for sport airguns | |
| GB491912A (en) | Improvements in or relating to automatic firearms | |
| GB283587A (en) | Improvements in automatic fire-arms | |
| GB139541A (en) | Improvements in automatic firearms | |
| US2357047A (en) | Automatic firearm | |
| GB274031A (en) | An automatic fire arm | |
| GB413071A (en) | Improvements in and relating to means for manually operating the breech mechanism of fire-arms | |
| GB483531A (en) | Gas-operated automatic firearm having a recoiling barrel which is independent of thebreech action | |
| GB252592A (en) | Improvements in or relating to automatic firearms |