GB1255921A - Improvements in or relating to breech mechanism - Google Patents

Improvements in or relating to breech mechanism

Info

Publication number
GB1255921A
GB1255921A GB46217/65A GB4621765A GB1255921A GB 1255921 A GB1255921 A GB 1255921A GB 46217/65 A GB46217/65 A GB 46217/65A GB 4621765 A GB4621765 A GB 4621765A GB 1255921 A GB1255921 A GB 1255921A
Authority
GB
United Kingdom
Prior art keywords
breech block
breech
track
recoil
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
GB46217/65A
Inventor
Norman Trevor Brint
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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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 UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Priority to DK234866A priority Critical patent/DK234866A/en
Priority to CA959831A priority patent/CA919965A/en
Publication of GB1255921A publication Critical patent/GB1255921A/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
    • F41A5/32—Energy accumulator systems, i.e. systems for opening the breech-block by energy accumulated during barrel or gas piston recoil

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Toys (AREA)

Abstract

1,255,921. Breech mechanisms. DEFENCE, SECRETARY OF STATE FOR. 9 May, 1966 [7 May, 1965; 1 Nov., 1965], Nos. 19477/65 and 46217/65. Heading F3C. A mechanism for opening the breech block 2 upon recoil of the gun 1 comprises a breech ring 4 in which the breech block is horizontally slidable in a recess 3, the breech block being connected by a pivot pin 11 to a rocker member 8 rolling on a cylindrical track 7 formed on the ring. The curved surface 9 of the member 8 has a radius equal to half that of the track 7 so that on recoil of the gun causing lugs 10b of the member 8 to strike the end of a stop member 12, the surface 9 rolls on the track 7 and the pivot pin 11 moves in a straight line to open the breech block 2 (Fig. 2, not shown). A spring- loaded catch (14) (Figs. 7-9, not shown) retains the breech block open until the insertion of a new projectile 15. The breech block is closed by springs 28 which are compressed on recoil of the gun and which act on a slide 25 connected by a pivot 27 to the rocker member 8 so that the latter rolls in the reverse direction on the track 7.
GB46217/65A 1965-05-07 1965-05-07 Improvements in or relating to breech mechanism Expired GB1255921A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DK234866A DK234866A (en) 1965-05-07 1966-05-07 THRESHOLD MECHANISM
CA959831A CA919965A (en) 1965-05-07 1966-05-07 Breech mechanisms

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1947765 1965-05-07
US54942966A 1966-05-06 1966-05-06

Publications (1)

Publication Number Publication Date
GB1255921A true GB1255921A (en) 1971-12-01

Family

ID=26254075

Family Applications (1)

Application Number Title Priority Date Filing Date
GB46217/65A Expired GB1255921A (en) 1965-05-07 1965-05-07 Improvements in or relating to breech mechanism

Country Status (2)

Country Link
US (1) US3687001A (en)
GB (1) GB1255921A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4730539A (en) * 1985-04-26 1988-03-15 Aktiebolaget Bofors Apparatus for increasing the rate of fire in automatic weapons
GB2327115A (en) * 1997-07-09 1999-01-13 Rheinmetall Ind Ag Transverse action breech block for a weapon

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5317949A (en) * 1993-04-09 1994-06-07 Sugg Ronald E Firing mechanism for breech-loading weapons
GB9521159D0 (en) * 1995-10-16 1995-12-20 Brint Norman T A weapon

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2398453A (en) * 1941-05-16 1946-04-16 Summerbell William Breech block mechanism

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4730539A (en) * 1985-04-26 1988-03-15 Aktiebolaget Bofors Apparatus for increasing the rate of fire in automatic weapons
GB2327115A (en) * 1997-07-09 1999-01-13 Rheinmetall Ind Ag Transverse action breech block for a weapon
FR2765957A1 (en) * 1997-07-09 1999-01-15 Rheinmetall W & M Gmbh CROSS-SECTION CORNER WITH EXTERNAL DRIVE DEVICE FOR A LARGE-CALIBER WEAPON
US6006645A (en) * 1997-07-09 1999-12-28 Rheinmetall W & M Gmbh Externally driven transverse wedge-type breechblock for a large-caliber weapon
GB2327115B (en) * 1997-07-09 2001-06-06 Rheinmetall Ind Ag Transverse action breech block for a weapon

Also Published As

Publication number Publication date
US3687001A (en) 1972-08-29

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