GB190913946A - Improvements in Automatic Firearms. - Google Patents

Improvements in Automatic Firearms.

Info

Publication number
GB190913946A
GB190913946A GB190913946DA GB190913946A GB 190913946 A GB190913946 A GB 190913946A GB 190913946D A GB190913946D A GB 190913946DA GB 190913946 A GB190913946 A GB 190913946A
Authority
GB
United Kingdom
Prior art keywords
locking
sleeve
controlling
bolt
head
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
Application granted granted Critical
Publication of GB190913946A publication Critical patent/GB190913946A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

13,946. Krnka, K. June 14. Breech actions, sliding breechblock.-In a known form of automatic gun the breechbolt is capable of a short rearward movement before it is arrested by the locking-member, this movement being communicated to a momentum block which, when the breechbolt is arrested, continues its rearward movement a n d thereby releases the locking- member. The present invention consists in applying the principle of this known mechanism to a gun having a rotary lock. The mechanism comprises a non-rotary bolthead a, a rotary locking-sleeve b, and a non-rotary controlling-member c. When the gun is ready for firing, there is a short space z between the bolt-head a and the locking- sleeve b, but the controlling- member c is pressing against the bolt-head. Thus, on the discharge, the bolt-head and the controlling-member are driven backwards the distance z; the bolt-head is then arrested by the locking-sleeve c, but the controlling-member continues its movement. During this rearward movement, the controlling-member c, in the construction shown diagrammatically in Fig. 1, rotates the locking- sleeve b by means of the screw connexion 2, and the bolt-head and locking-sleeve are then driven back to open the breech. In the construction shown diagrammatically in Fig. 2, the locking-lugs 1 are sufficiently inclined for the back pressure to turn the locking-sleeve; but this is prevented, when the controlling-member is in its forward position, by the engagement of lugs 2 on the member c with longitudinal slots 4 in the locking-sleeve. These slots are enlarged at the back 5 to allow the sleeve to turn when the controlling-member has moved rearwards. Figs. 3 and 5 show the invention applied to a rifle. The bolt-head, locking-sleeve, and controlling-member are all loosely connected together, so that during the operation of the gun they do not become entirely separated, but form, in effect, a compound breech-block. The controlling-member is made in two parts rigidly connected side by side as shown in Fig. 5, the outside part forming a handle as well as an abutment for the recoil spring e. The extractor g, Fig. 3, is mounted on the bolt-head and partakes of its initial movement.
GB190913946D 1909-06-14 1909-06-14 Improvements in Automatic Firearms. Expired GB190913946A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190913946T 1909-06-14

Publications (1)

Publication Number Publication Date
GB190913946A true GB190913946A (en) 1910-03-31

Family

ID=32555735

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190913946D Expired GB190913946A (en) 1909-06-14 1909-06-14 Improvements in Automatic Firearms.

Country Status (1)

Country Link
GB (1) GB190913946A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011103978A1 (en) * 2010-02-26 2011-09-01 Heckler & Koch Gmbh Rotary lug breech and weapon

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011103978A1 (en) * 2010-02-26 2011-09-01 Heckler & Koch Gmbh Rotary lug breech and weapon
KR101373960B1 (en) * 2010-02-26 2014-03-12 헤클러 운트 코흐 게엠베하 Rotary lug breech and weapon

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