GB191502105A - Improvements in or relating to Breech Mechanism for Fire-arms. - Google Patents

Improvements in or relating to Breech Mechanism for Fire-arms.

Info

Publication number
GB191502105A
GB191502105A GB191502105DA GB191502105A GB 191502105 A GB191502105 A GB 191502105A GB 191502105D A GB191502105D A GB 191502105DA GB 191502105 A GB191502105 A GB 191502105A
Authority
GB
United Kingdom
Prior art keywords
sleeve
breech
bolt
barrel
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
Inventor
Karl Krnka
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 GB191502105A publication Critical patent/GB191502105A/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
    • 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

Landscapes

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

Abstract

2105. Krnka, K. Feb. 23, 1914, [Convention date]. Breech actions, sliding barrel and breech-block; breech actions, sliding breech-block.-Consists in locking the breech-bolt of an automatic gun by a rotary sleeve having recesses for engagement by locking lugs on the bolt and mounted on the barrel by a screw connexion, so that, as the sleeve is rotated for unlocking, it is also slightly retracted to allow for the heat expansion of the cartridge case. The locking-surfaces are perpendicular to the axis of the sleeve. The invention is shown in Figs. 1 and 6 applied to a gun having a recoiling barrel 3 and a non-rotary breech-bolt 5. Fig. 1 shows the gun with the breech locked, and Fig. 6 shows the gun at the end of the recoil of the barrel and with the breech-bolt 5 partly retracted. The locking-sleeve 4 is mounted by a screw connexion on the barrel 3 and has recesses adapted to be engaged by the locking-lugs c on the bolt 5, which is prevented from rotating by guide-ribs b. The sleeve 4 is rotated, during the recoil of the barrel, by the engagement of a lug g on the sleeve with a cam-groove in the fixed breechcasing 1. During this rotation, the sleeve is retracted from the barrel a distance of 0À75 mm., as shown in Fig. 6. The firing-pin h, Fig. 5, is utilized to serve as the ejector. The invention can also be applied to a gun having a rotary bolt, the bolt first turning with the sleeve and then, when the sleeve is stopped, continuing its rotation alone.
GB191502105D 1914-02-23 1915-02-09 Improvements in or relating to Breech Mechanism for Fire-arms. Expired GB191502105A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT319647X 1914-02-23

Publications (1)

Publication Number Publication Date
GB191502105A true GB191502105A (en) 1916-02-09

Family

ID=3671530

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191502105D Expired GB191502105A (en) 1914-02-23 1915-02-09 Improvements in or relating to Breech Mechanism for Fire-arms.

Country Status (2)

Country Link
DE (1) DE319647C (en)
GB (1) GB191502105A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2811902A (en) * 1952-01-18 1957-11-05 Paul H Dixon Mechanical bolt unlocking mechanism for recoiling barrel guns
US3198077A (en) * 1964-03-23 1965-08-03 Ross A Close Action for automatic firearms and machine guns
EP0014559A1 (en) * 1979-01-31 1980-08-20 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Improvements in or relating to breech mechanisms
US5398593A (en) * 1991-03-14 1995-03-21 Voere Kufsteiner Geratebau-Und Handelsgesellschaft M.B.H. Breech lock, especially for hand firearms

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2811902A (en) * 1952-01-18 1957-11-05 Paul H Dixon Mechanical bolt unlocking mechanism for recoiling barrel guns
US3198077A (en) * 1964-03-23 1965-08-03 Ross A Close Action for automatic firearms and machine guns
EP0014559A1 (en) * 1979-01-31 1980-08-20 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Improvements in or relating to breech mechanisms
US5398593A (en) * 1991-03-14 1995-03-21 Voere Kufsteiner Geratebau-Und Handelsgesellschaft M.B.H. Breech lock, especially for hand firearms

Also Published As

Publication number Publication date
DE319647C (en) 1920-03-12

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