GB1200847A - Improvements in/or relating to semi-automatic and automatic fire-arms - Google Patents

Improvements in/or relating to semi-automatic and automatic fire-arms

Info

Publication number
GB1200847A
GB1200847A GB33908/68A GB3390868A GB1200847A GB 1200847 A GB1200847 A GB 1200847A GB 33908/68 A GB33908/68 A GB 33908/68A GB 3390868 A GB3390868 A GB 3390868A GB 1200847 A GB1200847 A GB 1200847A
Authority
GB
United Kingdom
Prior art keywords
cartridge
fork
feed
firearm
breechblock
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
GB33908/68A
Inventor
Bernard Maillard
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.)
Brevets Aero Mecaniques SA
Original Assignee
Brevets Aero Mecaniques SA
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 Brevets Aero Mecaniques SA filed Critical Brevets Aero Mecaniques SA
Priority to GB26169/69A priority Critical patent/GB1200849A/en
Priority to GB26168/69A priority patent/GB1200848A/en
Priority to GB26170/69A priority patent/GB1200850A/en
Publication of GB1200847A publication Critical patent/GB1200847A/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
    • F41A15/00—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun
    • F41A15/12—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for bolt-action guns
    • F41A15/16—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for bolt-action guns the ejector being mounted on the breech housing or frame
    • 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
    • F41A11/00—Assembly or disassembly features; Modular concepts; Articulated or collapsible 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
    • F41A25/00—Gun mountings permitting recoil or return to battery, e.g. gun cradles; Barrel buffers or brakes
    • F41A25/10—Spring-operated systems
    • F41A25/12—Spring-operated systems using coil springs
    • 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
    • F41A3/16—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 locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks
    • F41A3/26—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 locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt
    • 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
    • F41A3/66—Breech housings or frames; Receivers
    • 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
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/37—Feeding two or more kinds of ammunition to the same gun; Feeding from two sides
    • 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
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/49—Internally-powered drives, i.e. operated by propellant charge energy, e.g. couplings, clutches, energy accumulators

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

1,200,847. Firearms. BREVETS AERO-MECANIQUES S.A. 16 July, 1968 [31 July, 1967], No. 33908/68. Heading F3C. An automatic or semi-automatic firearm comprises a substantially cylindrical breech mechanism 1 arranged to reciprocate in a breech case 2 which has, towards its rear end, a portion internally and externally of rectangular cross-section. A spent cartridge ejection opening 7 is provided in one, 3, of the small sides of the portion and the large sides are each provided with a cartridge introduction opening 8 which has two guide surfaces 42 for guiding the breech mechanism 1 and a counter recoil spring 10 in their movements. The four guide surfaces 42 are situated on a common cylinder of revolution whose axis is parallel to the axis of the firearm barrel 16. Two cartridge feed mechanisms (9, Figs. 2, 4, not shown) are mounted one on each side of the firearm one being moved into a cartridge feed position in which cartridges pass through the corresponding cartridge introduction opening 8 to be brought into the chamber 57 of the firearm by the breech mechanism 1 on its return to the firing position. In the construction shown, the breech mechanism 1 comprises a breechblock 11 locked by rotation, a casing 18 formed of two shells and slidable without rotation in the breechcase 2, and a damping device 19. A firing pin 21 within the breechblock 11 is connected to the casing 18 by a spindle 20. The ends of the spindle 20 each carry a roller which co-operates with a skew to effect rotation of the breechblock during its reciprocations (Fig. 4, not shown). The initial cocking mechanism comprises a chain actuated by a crank through a spindle 31. The breechblock 11 carries an extractor 35 and is provided diametrically opposite with a groove 36 for the passage of an ejector 33. The extractor 35 is maintained in position by a leaf-spring 37. The fastening and control of the feed mechanisms are arranged as in Specification 1,191,856 and the cartridge belt advancement mechanism in each feed mechanism may be of the type described in Specification 963,119. The drive of the feed mechanisms comprises a fork 89, one limb of which co-operates with a roller of a lever of the feed mechanism in the cartridge feed position while the other limb is dissociated from the equivalent lever of the other feed mechanism (Figs. 2, 4, not shown). The fork 89 reciprocates with the barrel 16 and sleeve 15 assembly, the movement of the fork being damped in the recoil movement by a piston assembly 99, 100, 105 working in a cylinder in the fork. The pistonrod 101 merely abuts a member 102 of the casing and thus the movement of the fork is not damped by this arrangement on its return stroke. The ejector 33 of the firearm has a cartridge striking surface 109 and a projection 112, the projection firstly urging the spent cartridge to pivot upwardly before the striking surface ejects the cartridge through the ejection opening 7. A spring-loaded sear 26 may be withdrawn and held out of the path of the breech mechanism 1 by cam 67. A damping spring 66 is also provided for the sear.
GB33908/68A 1967-07-31 1968-07-16 Improvements in/or relating to semi-automatic and automatic fire-arms Expired GB1200847A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB26169/69A GB1200849A (en) 1967-07-31 1968-07-16 Improvements in/or relating to semi-automatic and automatic fire-arms
GB26168/69A GB1200848A (en) 1967-07-31 1968-07-16 Improvements in/or relating to semi-automatic and automatic fire-arms
GB26170/69A GB1200850A (en) 1967-07-31 1968-07-16 Improvements in/or relating to semi-automatic and automatic fire-arms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU54210 1967-07-31

Publications (1)

Publication Number Publication Date
GB1200847A true GB1200847A (en) 1970-08-05

Family

ID=19725290

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33908/68A Expired GB1200847A (en) 1967-07-31 1968-07-16 Improvements in/or relating to semi-automatic and automatic fire-arms

Country Status (12)

Country Link
US (1) US3447418A (en)
JP (3) JPS493560B1 (en)
BE (1) BE718851A (en)
CH (1) CH483614A (en)
DE (1) DE1703712A1 (en)
ES (1) ES356236A1 (en)
FR (1) FR1576739A (en)
GB (1) GB1200847A (en)
IL (4) IL39859A (en)
LU (1) LU54210A1 (en)
NL (1) NL6810157A (en)
SE (1) SE334831B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0423678A2 (en) * 1989-10-18 1991-04-24 The State Of Israel, Ministry Of Defence, Israel Military Industries Machine gun with belt and magazine feed

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4612843A (en) * 1983-06-03 1986-09-23 Etat Francais Dual ammunition feed for automatic weapons
FR2547042B1 (en) * 1983-06-03 1985-07-12 France Etat Armement DUAL AMMUNITION FEED FOR AUTOMATIC WEAPONS
RU2751832C1 (en) * 2020-12-23 2021-07-19 Борис Викторович Паршин Small arms and small arms bolt

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2868083A (en) * 1955-09-21 1959-01-13 Robert F Windstrup Prefabricated gun receiver

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0423678A2 (en) * 1989-10-18 1991-04-24 The State Of Israel, Ministry Of Defence, Israel Military Industries Machine gun with belt and magazine feed
EP0423678A3 (en) * 1989-10-18 1992-07-29 The State Of Israel, Ministry Of Defence, Israel Military Industries Machine gun with belt and magazine feed

Also Published As

Publication number Publication date
IL30396A (en) 1973-10-25
IL39860A (en) 1973-10-25
IL39858A (en) 1973-10-25
BE718851A (en) 1968-12-31
NL6810157A (en) 1969-02-04
CH483614A (en) 1969-12-31
DE1703712A1 (en) 1972-03-09
IL30396A0 (en) 1970-03-22
SE334831B (en) 1971-05-03
JPS493560B1 (en) 1974-01-26
LU54210A1 (en) 1969-05-21
JPS503597B1 (en) 1975-02-06
FR1576739A (en) 1969-08-01
US3447418A (en) 1969-06-03
IL39859A (en) 1973-10-25
JPS503598B1 (en) 1975-02-06
ES356236A1 (en) 1970-02-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee