GB162671A - Improvements in or relating to breech-blocks for fire arms - Google Patents

Improvements in or relating to breech-blocks for fire arms

Info

Publication number
GB162671A
GB162671A GB12779/21A GB1277921A GB162671A GB 162671 A GB162671 A GB 162671A GB 12779/21 A GB12779/21 A GB 12779/21A GB 1277921 A GB1277921 A GB 1277921A GB 162671 A GB162671 A GB 162671A
Authority
GB
United Kingdom
Prior art keywords
block
post
striker
cartridge
breech
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
GB12779/21A
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 GB162671A publication Critical patent/GB162671A/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
    • F41A3/36—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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Buckles (AREA)

Abstract

162,671. Berthier, A. V. P. M. Nov. 28, 1918, [Convention date]. Machine guns.-Relates to breechblocks for automatic machine guns of the kind wherein the rear portion of the block is tilted relatively to the front portion for the purpose of locking the block in firing position, and consists in providing a special form of knuckle-joint between the two parts of the breech-block. The rear part 4 of the block, which is connected to the front part 6 by T- shaped arcuate ribs 12, Fig. 2, has inclined grooves 42, Fig. 1, which are engaged by projections 50 on the gas-actuated striker-post 9 during its rearward movement to lower the portion 24 of the bolt from a recess in the receiver 2. After unlocking, the breech-block is moved rearwards and retained by the engagement of a pivoted sear 56 with a projection 54 on the striker-post. During this movement the empty cartridge case is withdrawn by an extractor 30 and deflected downwards through an opening 66 in the actuating- rod 52 by an ejector 28 moving in grooves 26, 22 in the block. On pressing the thumb-piece 58 of the sear, the striker-post is drawn forwards by a tension spring 52 and engaging behind an abutment 44 on the bolt carries it forwards. The bolt has projections 20 whereby it pushes before it a fresh cartridge from the magazine and when the cartridge is right home the striker-post, moving forward alone, tilts the rear end of the block for locking it and then fires the cartridge.
GB12779/21A 1918-11-20 1920-05-17 Improvements in or relating to breech-blocks for fire arms Expired GB162671A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US162671XA 1918-11-20 1918-11-20

Publications (1)

Publication Number Publication Date
GB162671A true GB162671A (en) 1921-08-17

Family

ID=21776245

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12779/21A Expired GB162671A (en) 1918-11-20 1920-05-17 Improvements in or relating to breech-blocks for fire arms

Country Status (1)

Country Link
GB (1) GB162671A (en)

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