GB1255924A - Improvements in or relating to cocking mechanisms for guns - Google Patents
Improvements in or relating to cocking mechanisms for gunsInfo
- Publication number
- GB1255924A GB1255924A GB5347266A GB5347266A GB1255924A GB 1255924 A GB1255924 A GB 1255924A GB 5347266 A GB5347266 A GB 5347266A GB 5347266 A GB5347266 A GB 5347266A GB 1255924 A GB1255924 A GB 1255924A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- thread
- gun
- nut
- screw
- 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
- F41A7/00—Auxiliary mechanisms for bringing the breech-block or bolt or the barrel to the starting position before automatic firing; Drives for externally-powered guns; Remote-controlled gun chargers
- F41A7/02—Machine gun rechargers, e.g. manually operated
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
1,255,924. Cocking mechanism for guns. DEFENCE, SECRETARY OF STATE FOR. 29 Nov., 1967 [29 Nov., 1966], No. 53472/66. Heading F3C. A cocking mechanism for a gun incorporates a shaft 1 rotatably mounted in bearings 3, 4 carried by the gun cradle 5 and having two intersecting screw-threads, one a right-handed thread 6 of fairly slow pitch and the other a lefthanded thread 7 of twice that pitch. Mounted on the shaft 1 and restrained against rotation by engagement with a guideway 18 in the cradle 5 is a slide 19 which constitutes a retractor member and carries a forwardly extending hook member 20 for engaging a forward facing surface on the breech ring 21 of the gun 22 which can, thereby, be pulled rearwardly with the other recoiling parts of the gun. A hollow, cylindrical boss 23 formed on the slide 19 houses a cylindrical " half-nut " 24 having a raised thread portion 25 which locates in the grooves of the shaft's screw-threads. At each end of the screwthreaded part of the shaft 1 is a collar 26, 27 shaped to form a cam surface 28, 29 respectively, such that its engagement with the thread portion 25 will cause the " half-nut " 24 to turn about its axis and to be diverted from one screw-thread of the shaft 1 to the other. Starting from the rest position, clockwise rotation of a handle 8 mounted to the rear of the shaft 1 will cause the " half-nut " 24 to travel rearward along the screw-thread 6, carrying the slide 19 and the recoiling parts of the gun rearward against the action of the recoil return spring 30 to perform the required cocking action. At the rear end of the shaft 1 the "half-nut" 24 is caused to rotate so that the thread portion 25 is diverted into the thread 7. The recoiling parts then run out forwardly under the action of the spring 30 while the shaft 1 free-wheels relative to the handle 8 by way of a pawl-and-ratchet 17. During a firing sequence, the cocking action is performed by the recoil movement of the gun after firing the previous round. At the start of a firing sequence, however, the abovedescribed manual cocking action is performed. Various types of thread-engaging member other than a " half-nut " may be used, one example being a pair of nuts mating respectively with the two screw-threads on the shaft, with clutch means, reversible by contact with a bush at the end of its travel, for locking one or other of the nuts, according to the direction of motion, against rotation relative to the retractor member.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5347266A GB1255924A (en) | 1966-11-29 | 1966-11-29 | Improvements in or relating to cocking mechanisms for guns |
SE1631467A SE332794C (en) | 1966-11-29 | 1967-11-28 | Clamping device for automatic firearms |
CA006299A CA919964A (en) | 1966-11-29 | 1967-11-29 | Cocking mechanisms for guns |
DK596667A DK596667A (en) | 1966-11-29 | 1967-11-29 | TENSION MECHANISM FOR THE ARMY |
DE19671578431 DE1578431A1 (en) | 1966-11-29 | 1967-11-29 | Clamping device for firearms |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5347266A GB1255924A (en) | 1966-11-29 | 1966-11-29 | Improvements in or relating to cocking mechanisms for guns |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1255924A true GB1255924A (en) | 1971-12-01 |
Family
ID=10467941
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5347266A Expired GB1255924A (en) | 1966-11-29 | 1966-11-29 | Improvements in or relating to cocking mechanisms for guns |
Country Status (5)
Country | Link |
---|---|
CA (1) | CA919964A (en) |
DE (1) | DE1578431A1 (en) |
DK (1) | DK596667A (en) |
GB (1) | GB1255924A (en) |
SE (1) | SE332794C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4421006A (en) * | 1980-12-18 | 1983-12-20 | Werkzeugmaschinenfabrik Oerlikon-Buhrle Ag | Manual cocking device for an automatic firing weapon |
GB2248915A (en) * | 1982-05-08 | 1992-04-22 | Heckler & Koch Gmbh | Self-loading hand weapon |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10255107B4 (en) * | 2002-11-27 | 2004-09-09 | Rheinmetall Landsysteme Gmbh | Device for tensioning and securing a firing pin |
-
1966
- 1966-11-29 GB GB5347266A patent/GB1255924A/en not_active Expired
-
1967
- 1967-11-28 SE SE1631467A patent/SE332794C/en unknown
- 1967-11-29 DE DE19671578431 patent/DE1578431A1/en active Pending
- 1967-11-29 CA CA006299A patent/CA919964A/en not_active Expired
- 1967-11-29 DK DK596667A patent/DK596667A/en not_active Application Discontinuation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4421006A (en) * | 1980-12-18 | 1983-12-20 | Werkzeugmaschinenfabrik Oerlikon-Buhrle Ag | Manual cocking device for an automatic firing weapon |
GB2248915A (en) * | 1982-05-08 | 1992-04-22 | Heckler & Koch Gmbh | Self-loading hand weapon |
GB2248915B (en) * | 1982-05-08 | 1992-09-16 | Heckler & Koch Gmbh | Self-loading hand weapon |
Also Published As
Publication number | Publication date |
---|---|
DE1578431A1 (en) | 1972-08-10 |
DK596667A (en) | 1982-04-28 |
SE332794C (en) | 1972-07-10 |
CA919964A (en) | 1973-01-30 |
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