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 arms

Info

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
Application number
GB9215/29A
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 AKCIO
Original Assignee
CESKOSLOVENSKA ZBROJOVKA AKCIO
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 AKCIO filed Critical CESKOSLOVENSKA ZBROJOVKA AKCIO
Publication of GB308724A publication Critical patent/GB308724A/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
    • 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.
GB9215/29A 1928-03-27 1929-03-21 Improvements in and relating to breech actions for gas-operated automatic fire arms Expired GB308724A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE739236C (en) * 1937-03-06 1943-09-16 Wilhelm Andreas Eugen Schwarzl Gas pressure charger

Cited By (1)

* Cited by examiner, † Cited by third party
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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