GB538344A - Automatic firearm - Google Patents

Automatic firearm

Info

Publication number
GB538344A
GB538344A GB31830/39A GB3183039A GB538344A GB 538344 A GB538344 A GB 538344A GB 31830/39 A GB31830/39 A GB 31830/39A GB 3183039 A GB3183039 A GB 3183039A GB 538344 A GB538344 A GB 538344A
Authority
GB
United Kingdom
Prior art keywords
carrier
bolt
breech
spring
gun
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
GB31830/39A
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.)
Ceskoslovenska Zbrojovka As Brno
Original Assignee
Ceskoslovenska Zbrojovka As Brno
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 Ceskoslovenska Zbrojovka As Brno filed Critical Ceskoslovenska Zbrojovka As Brno
Publication of GB538344A publication Critical patent/GB538344A/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
    • F41A3/12—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
    • 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
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
    • F41A19/25—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins
    • F41A19/27—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block
    • F41A19/29—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension
    • F41A19/30—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension in bolt-action guns
    • 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
    • F41A3/82—Coil spring buffers
    • F41A3/84—Coil spring buffers mounted within the gun stock

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Emergency Lowering Means (AREA)
  • Buckles (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

538,344. Automatic guns. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SPOLECNOST BRNO. Dec. 8, 1939, No. 31830. Convention date, Oct. 21, 1938. [Class 119] The breech-closing spring 12 of a gun in which the breech bolt 14 is locked and unlocked by the sliding movements of the bolt carrier 5 controls the return movement of the carrier only during the initial stage, the breech closing by momentum and the block being locked by the pressure exerted on the carrier by the firing pin retraction spring 20 stressed during recoil. The invention is shown applied to a gun having a gasoperated carrier slide 5 for a tilting breech bolt 4, the slide carrying a pin 17<SP>1</SP> for engagement with a cam groove 15 in the bolt for tilting the bolt into and out of engagement with the fixed locking abutment 19. On discharge, the carrier 5 compresses the retraction spring 20 and unlocks the bolt, the projection 13 on the carrier compressing the return spring 12 which reacts to impel the carrier forwards until it is retrained by the sear 29. The carrier completes its forward movement by momentum and by the reaction of the spring 20 which actuates the carrier to effect locking movement of the breech block. The release of the sear by the trigger 30 then enables the return spring 12 to act on the hammer 11 to fire the gun.
GB31830/39A 1938-10-21 1939-12-08 Automatic firearm Expired GB538344A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS211955X 1938-10-21

Publications (1)

Publication Number Publication Date
GB538344A true GB538344A (en) 1941-07-30

Family

ID=5450735

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31830/39A Expired GB538344A (en) 1938-10-21 1939-12-08 Automatic firearm

Country Status (5)

Country Link
BE (1) BE436506A (en)
CH (1) CH211955A (en)
DE (1) DE727603C (en)
FR (1) FR860798A (en)
GB (1) GB538344A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2640396A (en) * 1947-01-28 1953-06-02 George F Grebey Automatic carbine
US2775166A (en) * 1951-08-22 1956-12-25 Mini Of Supply Pivoted breech bolt lock for gas piston firearms
US5913262A (en) * 1997-08-06 1999-06-15 Sommer + Ockenfuss Gmbh Breech for barrel-type firearms

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2640396A (en) * 1947-01-28 1953-06-02 George F Grebey Automatic carbine
US2775166A (en) * 1951-08-22 1956-12-25 Mini Of Supply Pivoted breech bolt lock for gas piston firearms
US5913262A (en) * 1997-08-06 1999-06-15 Sommer + Ockenfuss Gmbh Breech for barrel-type firearms

Also Published As

Publication number Publication date
DE727603C (en) 1942-11-06
CH211955A (en) 1940-10-31
BE436506A (en) 1939-10-31
FR860798A (en) 1941-01-23

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