GB687315A - Improvements in self-loading firearms and in particular small bore cannons - Google Patents

Improvements in self-loading firearms and in particular small bore cannons

Info

Publication number
GB687315A
GB687315A GB6206/51A GB620651A GB687315A GB 687315 A GB687315 A GB 687315A GB 6206/51 A GB6206/51 A GB 6206/51A GB 620651 A GB620651 A GB 620651A GB 687315 A GB687315 A GB 687315A
Authority
GB
United Kingdom
Prior art keywords
block
breech
elements
unit
bars
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
GB6206/51A
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 claimed from US218370A external-priority patent/US2756640A/en
Publication of GB687315A publication Critical patent/GB687315A/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
    • F41A15/14—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 or within the bolt; Extractors per se
    • 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
    • F41A3/36—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing
    • F41A3/38—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing having rocking locking elements, e.g. pivoting levers or vanes
    • F41A3/40—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing having rocking locking elements, e.g. pivoting levers or vanes mounted on the 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)

Abstract

687,315. Firearms. BREVETS AEROMECANIQUES SOC. ANON. March 14, 1951 [March 30, 1950], No. 6206/51. Class 92(ii) Relates to self-loading firearms of the kind in which the breech-block is temporarily locked in the firing position by a strikercarrying reciprocating unit which moves forward relatively to the breech-block after the latter 'has reached the firing position. According to the invention the breech-block is carried by the unit and is constituted by two elements 3a, 3b, which are movable transversely into locking engagement with the breech casing 2. The reciprocating unit shown comprises two bars 6a sliding in guideways 2a and interconnected by a cross-piece 6b which carries a block 6 fitted with a striker 7. The breech-block elements 3a, 3b are slidably supported on the block, are recessed at Ta, Tb to engage the base 5a of a cartridge 5, and have inclined faces s which are engaged by inclined faces S on the block 6 when the latter partakes of its forward relative movement, thus causing the element to move about an axis X-X<SP>1</SP> into locking engagement with hard metal inserts 4 in the breech casing. Trigger stops 6c are provided on the block 6, and projections 6d are provided on the cross-piece 6b for determining the limit frontward position' of elements 3a, 3b, and for compelling the elements to move towards each other at the beginning of the recoil stroke of the unit. The elements are recessed to receive the trunnion 9b of the extractor 9, the recesses being such as to permit the elements to move freely about the axis X-X<SP>1</SP>. The recoil movement of the unit is - effected by gases tapped from the barrel and fed through conduits 12 to chambers 13 in front of the bars 6a. Racks 14 on these bars engage with a pinion 15 on a sliding member 16, the pinion meshing also with a fixed rack 17 on the breech casing. Each sliding member 16, which is engaged by a return spring 18, thus has half the amplitude of the sliding unit. This return system for the unit forms the subject of Specification 687,339. In a modification, Fig. 5 (not shown) rollers may be provided in place of the faces S on the block 6.
GB6206/51A 1950-03-30 1951-03-14 Improvements in self-loading firearms and in particular small bore cannons Expired GB687315A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
LU309604X 1950-03-30
US218370A US2756640A (en) 1950-03-30 1951-03-30 Breech block locking means
US518307A US2831403A (en) 1950-03-30 1955-06-27 Sliding breechblock locking mechanism for self-loading firearms

Publications (1)

Publication Number Publication Date
GB687315A true GB687315A (en) 1953-02-11

Family

ID=32329668

Family Applications (2)

Application Number Title Priority Date Filing Date
GB6206/51A Expired GB687315A (en) 1950-03-30 1951-03-14 Improvements in self-loading firearms and in particular small bore cannons
GB17339/52A Expired GB687339A (en) 1950-03-30 1951-03-14 Improvements in self-loading firearms and in particular small bore cannons

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB17339/52A Expired GB687339A (en) 1950-03-30 1951-03-14 Improvements in self-loading firearms and in particular small bore cannons

Country Status (8)

Country Link
US (1) US2831403A (en)
BE (1) BE502095A (en)
CH (2) CH309604A (en)
DE (1) DE860019C (en)
FR (1) FR1042830A (en)
GB (2) GB687315A (en)
LU (1) LU30050A1 (en)
NL (4) NL93801C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1168806B (en) * 1958-12-03 1964-04-23 Rheinmetall Gmbh Lock for automatic weapons

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9702649B1 (en) * 2014-07-18 2017-07-11 The United States Of America As Represented By The Secretary Of The Army Reciprocally-cycled weapon
US10852084B2 (en) * 2018-06-15 2020-12-01 Michael Gregorich Advanced gas piston system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB574352A (en) * 1943-02-19 1946-01-02 Lewis Motley Improvements in or relating to automatic guns
FR897374A (en) * 1943-08-20 1945-03-20 Johannes Grossfuss Metall Und Two-piece breech for recoil loading weapons
CH267987A (en) * 1947-06-20 1950-04-30 Oerlikon Buehrle Ag Automatic firearm with cartridge.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1168806B (en) * 1958-12-03 1964-04-23 Rheinmetall Gmbh Lock for automatic weapons

Also Published As

Publication number Publication date
LU30050A1 (en)
BE502095A (en)
CH310860A (en) 1955-11-15
CH309604A (en) 1955-09-15
FR1042830A (en) 1953-11-04
NL153487B (en)
US2831403A (en) 1958-04-22
NL93056C (en)
DE860019C (en) 1952-12-18
NL165278B (en)
GB687339A (en) 1953-02-11
NL93801C (en)

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