GB702820A - Improvements relating to the breech block mechanism of firearms - Google Patents

Improvements relating to the breech block mechanism of firearms

Info

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
Application number
GB26415/52A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saab Bofors AB
Original Assignee
Bofors AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bofors AB filed Critical Bofors AB
Publication of GB702820A publication Critical patent/GB702820A/en
Expired legal-status Critical Current

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
    • 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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Portable Nailing Machines And Staplers (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.
GB26415/52A 1951-10-24 1952-10-21 Improvements relating to the breech block mechanism of firearms Expired GB702820A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
US2800837A (en) 1957-07-30
DE918192C (en) 1954-09-20
FR1065021A (en) 1954-05-19
CH310272A (en) 1955-10-15

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