GB598051A - Improvements in or relating to automatic firearms - Google Patents

Improvements in or relating to automatic firearms

Info

Publication number
GB598051A
GB598051A GB12378/44A GB1237844A GB598051A GB 598051 A GB598051 A GB 598051A GB 12378/44 A GB12378/44 A GB 12378/44A GB 1237844 A GB1237844 A GB 1237844A GB 598051 A GB598051 A GB 598051A
Authority
GB
United Kingdom
Prior art keywords
slide
lugs
bolt
cams
lug
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
GB12378/44A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB598051A publication Critical patent/GB598051A/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
    • 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
    • F41A5/00—Mechanisms or systems operated by propellant charge energy for automatically opening the lock

Landscapes

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

Abstract

598,051. Smallarms..JOHNSON, M. M. June 29, 1944, No. 12378. Convention date, May 13, 1943. [Class 119] In an automatic fire-arm comprising lugs 3, 4, Figs. 8 and 9, on each side of the front of the bolt, which transmit the breech pressure to lugs on the receiver, the abutting surfaces of the lugs are inclined so that the breech pressure transmitted to the bolt by a slide S, Fig. 7, moved by gas pressure and a spring, tends to produce rotation of the bolt and thus unlocks the lugs. Also the slide S has a surface 9 which engages the top of the lug 4 and prevents rotation and unlocking until the slide has moved a predetermined distance. The main feature of the invention is an inclined cam surface 11 on the slide S which cams the bolt into locked position and a cam surface 12 which cams it into unlocked position. To counteract the thrust between the surface 9 and the lug 4, the receiver is provided with a flange 14 overlying the slide which also has a depending part 16 preventing outward movement of the slide.
GB12378/44A 1943-05-13 1944-06-29 Improvements in or relating to automatic firearms Expired GB598051A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US486782A US2409569A (en) 1943-05-13 1943-05-13 Automatic firearm

Publications (1)

Publication Number Publication Date
GB598051A true GB598051A (en) 1948-02-10

Family

ID=23933218

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12378/44A Expired GB598051A (en) 1943-05-13 1944-06-29 Improvements in or relating to automatic firearms

Country Status (3)

Country Link
US (1) US2409569A (en)
BE (1) BE462273A (en)
GB (1) GB598051A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE514121A (en) * 1951-09-12
US3030722A (en) * 1959-04-20 1962-04-24 Jessie T Ivy Receiver with lid covering the ejection slot
US4653210A (en) * 1985-02-28 1987-03-31 Poff Jr Charles R Firearm bolt action and extractor
US4930238A (en) * 1988-04-21 1990-06-05 Poff Jr Charles R Rimfire firearm receiver
DE10392631B4 (en) 2002-05-10 2012-11-15 Karl R. Lewis Monolithic rail platform and lock assemblies for a firearm

Also Published As

Publication number Publication date
US2409569A (en) 1946-10-15
BE462273A (en)

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