GB572927A - Improvements in or relating to gas-operated automatic firearms - Google Patents

Improvements in or relating to gas-operated automatic firearms

Info

Publication number
GB572927A
GB572927A GB690842A GB690842A GB572927A GB 572927 A GB572927 A GB 572927A GB 690842 A GB690842 A GB 690842A GB 690842 A GB690842 A GB 690842A GB 572927 A GB572927 A GB 572927A
Authority
GB
United Kingdom
Prior art keywords
pin
gas
piston
sear
flats
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
GB690842A
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.)
Birmingham Small Arms Co Ltd
Original Assignee
Birmingham Small Arms Co Ltd
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 Birmingham Small Arms Co Ltd filed Critical Birmingham Small Arms Co Ltd
Priority to GB690842A priority Critical patent/GB572927A/en
Publication of GB572927A publication Critical patent/GB572927A/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
    • F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • F41A21/48—Barrel mounting means, e.g. releasable mountings for replaceable barrels
    • F41A21/484—Barrel mounting means, e.g. releasable mountings for replaceable barrels using interlocking means, e.g. by sliding pins

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Circuit Breakers (AREA)

Abstract

572,927. Automatic firearms. BIRMINGHAM SMALL ARMS CO., Ltd., FAULKNER, H. A., and WACKROW, R. D. May 21, 1942, No. 6908. [Class 119] A transverse rotary locking-pin 3 for the barrel 1 of a gas-operated automatic gun has flats 6 out therein which, in the locking position, Fig. 1, lie above the top edges of the side-bars of the piston-extension 7. The pin can only be rotated to free the barrel when the breech is fully open and the piston held rearwards by engagement between the sear 12 and bent 11. In this cocked position, notches 9 in the sidebars are situated below the pin 3. Unlocking rotation of the pin 3 causes the flats 6 to engage the ends 10 of the notches 9, as shown in Fig. 3, and to retract the piston assembly slightly beyond the cocked position, thus holding the bent out of contact with the sear and leaving the trigger 13 inoperative.
GB690842A 1942-05-21 1942-05-21 Improvements in or relating to gas-operated automatic firearms Expired GB572927A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB690842A GB572927A (en) 1942-05-21 1942-05-21 Improvements in or relating to gas-operated automatic firearms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB690842A GB572927A (en) 1942-05-21 1942-05-21 Improvements in or relating to gas-operated automatic firearms

Publications (1)

Publication Number Publication Date
GB572927A true GB572927A (en) 1945-10-30

Family

ID=9823023

Family Applications (1)

Application Number Title Priority Date Filing Date
GB690842A Expired GB572927A (en) 1942-05-21 1942-05-21 Improvements in or relating to gas-operated automatic firearms

Country Status (1)

Country Link
GB (1) GB572927A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2795171A (en) * 1950-02-01 1957-06-11 Alonzo F Gaidos Breech mechanism for a rifle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2795171A (en) * 1950-02-01 1957-06-11 Alonzo F Gaidos Breech mechanism for a rifle

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