GB491912A - Improvements in or relating to automatic firearms - Google Patents

Improvements in or relating to automatic firearms

Info

Publication number
GB491912A
GB491912A GB3770/38A GB377038A GB491912A GB 491912 A GB491912 A GB 491912A GB 3770/38 A GB3770/38 A GB 3770/38A GB 377038 A GB377038 A GB 377038A GB 491912 A GB491912 A GB 491912A
Authority
GB
United Kingdom
Prior art keywords
barrel
spring
cocked
cover
closure
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
GB3770/38A
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 GB491912A publication Critical patent/GB491912A/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
    • F41A5/02—Mechanisms or systems operated by propellant charge energy for automatically opening the lock recoil-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
    • F41A3/64—Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings
    • F41A3/72—Operating handles or levers; Mounting thereof in breech-blocks or bolts
    • 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
    • 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
    • F41A35/00—Accessories or details not otherwise provided for
    • F41A35/02—Dust- or weather-protection caps or covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G1/00—Sighting devices
    • F41G1/06—Rearsights
    • F41G1/16—Adjusting mechanisms therefor; Mountings therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Toys (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

491,912. Automatic guns. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SPOLECNOST, BRNO. Feb. 7, 1938, No. 3770. Convention date, Feb. 12, 1937. [Classes 92 (ii) and 119] An automatic firearm having a recoiling barrel and a device for cocking the barrel prior to firing, has the barrelcocking means connected to a closure for the casing of the breech mechanism in such manner that whilst normal recoil movements of the barrel are not transmitted to the closure when in its closed position, the barrel is adapted to be cocked by movement of the closure to the open position. The invention is described as applied to a firearm having a barrel 2 and barrel-extension 3, with a tilting breech-block 4 controlled by a gas-operated member 5 which is guided on a fixed rod 7 surrounded by the recoil spring 6. The barrel-extension is hinged at 21 to a cylinder 22 in which works a piston 24 against the opposition of a spring 28, the piston-rod 25 being pivoted about midway between the ends of a cover 10 which is hinged at 12 and has a handle and spring lip 13 adapted to engage a catch 14 on the casing. The cylinder 22 has stops 23 so that when the cover is opened, the barrel is drawn back and cocked by a spring-pressed member 30, through which passes the gas operated member 5. The breechblock is cocked independently by means not shown and is held in cocked position by a sear 8. On actuation of the sear 8 by the trigger mechanism, the member 5 moves forward under the influence of the recoil-spring to close the breech and fire the. gun, an abutment 5<1> on the member 5 actuating the member 30 to release the barrel at such an instant that the barrel is moving forward when discharge takes place. The back-sight 43 is pivoted in the cover and has a toe by which it is held either vertically or folded along the cover by the resilient pressure of the end of the piston-rod 25.
GB3770/38A 1937-02-12 1938-02-07 Improvements in or relating to automatic firearms Expired GB491912A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS203988X 1937-02-12

Publications (1)

Publication Number Publication Date
GB491912A true GB491912A (en) 1938-09-12

Family

ID=5450490

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3770/38A Expired GB491912A (en) 1937-02-12 1938-02-07 Improvements in or relating to automatic firearms

Country Status (7)

Country Link
US (1) US2223004A (en)
BE (1) BE426122A (en)
CH (1) CH203988A (en)
DE (1) DE703815C (en)
FR (1) FR833683A (en)
GB (1) GB491912A (en)
NL (1) NL55874C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899865A (en) * 1959-08-18 Cartridge feeding mechanism
US3009396A (en) * 1947-09-24 1961-11-21 United Shoe Machinery Corp Gas piston operated automatic gun
DE1281227C2 (en) * 1959-06-12 1976-02-12 The Dow Chemical Company, Midland, Mich. (V.StA.) BATH FOR POWDERLESS ETCHING AND PROCESS FOR PRODUCING THE ETCHING BATH
US9976834B1 (en) * 2017-07-16 2018-05-22 Ncstar, Inc. Flip-up gun sight

Also Published As

Publication number Publication date
FR833683A (en) 1938-10-27
DE703815C (en) 1941-03-17
BE426122A (en)
US2223004A (en) 1940-11-26
CH203988A (en) 1939-04-15
NL55874C (en)

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