GB308724A - Improvements in and relating to breech actions for gas-operated automatic fire arms - Google Patents
Improvements in and relating to breech actions for gas-operated automatic fire armsInfo
- Publication number
- GB308724A GB308724A GB9215/29A GB921529A GB308724A GB 308724 A GB308724 A GB 308724A GB 9215/29 A GB9215/29 A GB 9215/29A GB 921529 A GB921529 A GB 921529A GB 308724 A GB308724 A GB 308724A
- Authority
- GB
- United Kingdom
- Prior art keywords
- breech
- block
- spring
- piston
- gas
- 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
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
- F41A3/14—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively
- F41A3/32—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the bolt being rocked about a notional axis transverse to the barrel axis
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Toys (AREA)
Abstract
308,724. Ceskoslovenska Zbrojovka Akciova Spolecnost v. Brne. March 27, 1928, [Convention date]. Machine guns.-Relates to gas-operated guns in which the breech-block is tilted by the gas piston to unlock it before retracting it to open the breech, and consists mainly in the interposition of a spring buffer to smooth the tilting operation. As shown, the member 20, which operates the breechblock 6, is slidably mounted in the head 5 of the gas-piston rod and is normally held back against a stop 5<1> by a spring 21. When a shot is fired, the piston head 5 and the member 20 are moved rearwards, and the inclined surface 25 on the member 20 engages an inclined surface 26 on the breech-block, but the shock of this engagement is cushioned by the spring 21. The rear end of the breech-block is thus deflected downwards to remove a lug 16 of the breech-block from its locking engagement in a recess 18 in the breech casing 2, after which the parts recoil against a spring 7 and the spent cartridge is extracted from the barrel by an extractor 14. When the parts are returned forwards by the spring 7, an inclined surface 36<11> on the piston-rod head 5 comes against an inclined surface 35 at the end of the breechblock, which is thereby again tilted up to the locking position where it is held by the curved surface 36<1> on the piston-rod head 5. After this, the member 20 strikes the firing pin 10 in the breech-block, and the next shot is fired.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS142193X | 1928-03-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB308724A true GB308724A (en) | 1930-06-23 |
Family
ID=5449513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9215/29A Expired GB308724A (en) | 1928-03-27 | 1929-03-21 | Improvements in and relating to breech actions for gas-operated automatic fire arms |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE358890A (en) |
CH (1) | CH142193A (en) |
FR (1) | FR670867A (en) |
GB (1) | GB308724A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5634288A (en) * | 1995-01-20 | 1997-06-03 | Martel; Phillip C. | One-piece gas tube for SKS rifle |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE739236C (en) * | 1937-03-06 | 1943-09-16 | Wilhelm Andreas Eugen Schwarzl | Gas pressure charger |
-
0
- BE BE358890D patent/BE358890A/xx unknown
-
1929
- 1929-03-01 CH CH142193D patent/CH142193A/en unknown
- 1929-03-06 FR FR670867D patent/FR670867A/en not_active Expired
- 1929-03-21 GB GB9215/29A patent/GB308724A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5634288A (en) * | 1995-01-20 | 1997-06-03 | Martel; Phillip C. | One-piece gas tube for SKS rifle |
Also Published As
Publication number | Publication date |
---|---|
FR670867A (en) | 1929-12-05 |
BE358890A (en) | |
CH142193A (en) | 1930-09-15 |
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