GB286598A - Improvements in automatic firearms having a recoiling barrel and an amplifying push lever - Google Patents

Improvements in automatic firearms having a recoiling barrel and an amplifying push lever

Info

Publication number
GB286598A
GB286598A GB5523/28A GB552328A GB286598A GB 286598 A GB286598 A GB 286598A GB 5523/28 A GB5523/28 A GB 5523/28A GB 552328 A GB552328 A GB 552328A GB 286598 A GB286598 A GB 286598A
Authority
GB
United Kingdom
Prior art keywords
breech
lever
bolt
recoil
barrel
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
GB5523/28A
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.)
SOC IT ERNESTO BREDA
Original Assignee
SOC IT ERNESTO BREDA
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 SOC IT ERNESTO BREDA filed Critical SOC IT ERNESTO BREDA
Publication of GB286598A publication Critical patent/GB286598A/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
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/29—Feeding of belted ammunition
    • F41A9/32—Reciprocating-slide-type belt transporters
    • F41A9/33—Reciprocating-slide-type belt transporters with cartridge stripping means
    • 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
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/03—Shot-velocity control
    • 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
    • F41A3/44—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing having sliding locking elements, e.g. balls, rollers
    • 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
    • F41A5/02—Mechanisms or systems operated by propellant charge energy for automatically opening the lock recoil-operated
    • F41A5/08—Mechanisms or systems operated by propellant charge energy for automatically opening the lock recoil-operated having an accelerator lever acting on the breech-block or bolt during the opening movement
    • 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
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/29—Feeding of belted ammunition
    • F41A9/32—Reciprocating-slide-type belt transporters

Abstract

286,598. Soc. Italiana E. Breda. March 5, 1927, [Convention date]. Machine guns.-Relates to machine guns having a short barrel-recoil breech action, the recoil of the barrel being transmitted to the breechblock by an " amplifying " lever. According to the invention, this lever is so arranged that it maintains permanent contact with its operating faces. As shown, the barrel 2, Fig. 1, is attached to a breech body 8 connected to a carriage 15, the face 38 of which bears against the upper arm of the amplifying lever 14, while the curved surfaces 39 of the carriage maintain contact with a roller 36 at the end of the lower arm of the lever. The breech-bolt 7, thrust back by the lever 14, compresses the main recoil spring 12 and is stopped by a spring buffer 13. The recoil spring 12 may be adjusted by means of an end screw plug 16. The bolt 7 is locked in the closed position by a key 17, Fig. 3, sliding transversely in the breech-body and operated by a cam groove in a member 18 in the breech casing 1 during the recoil and run out of the barrel. This locking device is situated near the front end of the bolt and at one side, to leave a free space for the ejection of the spent cartridges downwards. The Specification as open to inspection under Sect. 91 (3) (a) describes also the following further features : The firing pin 11 is situated in the bolt, but the hammer 27, Fig. 13 (Cancelled), therefor is in a casing 19 at the side of the breech casing. This hammer is cocked against a spring plunger 30 during the recoil, and is held cocked by a detent 28, which is pulled by a lever 29 when this is deflected by the closing of the breech. When the gun is used on an aircraft, the fire is controlled by the propeller shaft, which is connected by suitable mechanism to a detent 45 adapted to hold the hammer after its release by the detent 28 until the proper moment determined by the propeller shaft. The cartridges are supplied by a belt fed through a transverse way 3 above the breech-body by a lever 5 worked by the breech-bolt (as described in Specification 305,595), through a winglike arm 6 pivoted on a long spindle 41 and provided with a tooth 42 engaging a cam on the breech-bolt, which, with the breech-body, is made of cylindrical shape. During the opening of the breech, a cartridge is extracted from the belt by a double-sided gripper 23, and is then moved down by a vertically sliding pillar 9 operated by a cam in the side of the breech casing. The fresh cartridge takes the place of the ejected cartridge in a gripper in the front of the bolt 7, and is held there by a spring lever while the breech closes. These cartridge feeding and ejecting devices are described in Specification 305,595. This subject-matter does not appear in the Specification as accepted.
GB5523/28A 1927-03-05 1928-02-21 Improvements in automatic firearms having a recoiling barrel and an amplifying push lever Expired GB286598A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT305595T 1927-03-05

Publications (1)

Publication Number Publication Date
GB286598A true GB286598A (en) 1929-03-07

Family

ID=31898478

Family Applications (3)

Application Number Title Priority Date Filing Date
GB5523/28A Expired GB286598A (en) 1927-03-05 1928-02-21 Improvements in automatic firearms having a recoiling barrel and an amplifying push lever
GB4157/29A Expired GB305595A (en) 1927-03-05 1928-02-21
GB4158/29A Expired GB305596A (en) 1927-03-05 1928-02-21 Improvements in cartridge feeding devices for automatic firearms

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB4157/29A Expired GB305595A (en) 1927-03-05 1928-02-21
GB4158/29A Expired GB305596A (en) 1927-03-05 1928-02-21 Improvements in cartridge feeding devices for automatic firearms

Country Status (6)

Country Link
US (1) US1809222A (en)
BE (1) BE349065A (en)
CH (1) CH132352A (en)
DE (2) DE554289C (en)
FR (1) FR653726A (en)
GB (3) GB286598A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110478794A (en) * 2019-08-15 2019-11-22 吴自红 A kind of electronic jacking machine of fire-fighting

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2520971A (en) * 1946-01-03 1950-09-05 Clarence E Simpson Recoil mechanism
US2454251A (en) * 1946-01-11 1948-11-16 Hamilton Wallace Cartridge feeding mechanism for automatic guns
US2500139A (en) * 1946-09-11 1950-03-07 Carl G Swebilius Ejector detent
US2635377A (en) * 1946-11-02 1953-04-21 Vickers Armstrongs Ltd Cartridge case ejector for reciprocating breech block type of guns

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110478794A (en) * 2019-08-15 2019-11-22 吴自红 A kind of electronic jacking machine of fire-fighting

Also Published As

Publication number Publication date
GB305596A (en) 1929-05-02
DE554289C (en) 1932-07-09
CH132352A (en) 1929-04-15
US1809222A (en) 1931-06-09
FR653726A (en) 1929-03-26
DE550900C (en) 1932-05-25
GB305595A (en) 1929-04-25
BE349065A (en)

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