GB348580A - Improvements in or relating to small arms - Google Patents

Improvements in or relating to small arms

Info

Publication number
GB348580A
GB348580A GB4916/30A GB491630A GB348580A GB 348580 A GB348580 A GB 348580A GB 4916/30 A GB4916/30 A GB 4916/30A GB 491630 A GB491630 A GB 491630A GB 348580 A GB348580 A GB 348580A
Authority
GB
United Kingdom
Prior art keywords
breech
bolt
spring
catch
pivoted
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
GB4916/30A
Original Assignee
Rodolfo Cosmi
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
Priority to IT348580X priority Critical
Application filed by Rodolfo Cosmi filed Critical Rodolfo Cosmi
Publication of GB348580A publication Critical patent/GB348580A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A3/00Breech mechanisms, e.g. locks
    • F41A3/12Bolt action, i.e. the main breech opening movement being parallel to the barrel axis
    • F41A3/14Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively
    • F41A3/32Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the bolt being rocked about a notional axis transverse to the barrel axis
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A11/00Assembly or disassembly features; Modular concepts; Articulated or collapsible guns
    • F41A11/04Articulated or collapsible guns, i.e. with hinged or telescopic parts for transport or storage
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A15/00Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun
    • F41A15/12Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for bolt-action guns
    • F41A15/14Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for bolt-action guns the ejector being mounted on or within the bolt; Extractors per se
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A17/00Safety arrangements, e.g. safeties
    • F41A17/56Sear safeties, i.e. means for rendering ineffective an intermediate lever transmitting trigger movement to firing pin, hammer, bolt or sear
    • F41A17/58Sear safeties, i.e. means for rendering ineffective an intermediate lever transmitting trigger movement to firing pin, hammer, bolt or sear automatically operated, i.e. operated by breech opening or closing movement
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A17/00Safety arrangements, e.g. safeties
    • F41A17/64Firing-pin safeties, i.e. means for preventing movement of slidably- mounted strikers
    • F41A17/66Firing-pin safeties, i.e. means for preventing movement of slidably- mounted strikers automatically operated, i.e. operated by breech opening or closing movement
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A19/00Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/06Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
    • F41A19/42Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having at least one hammer
    • F41A19/43Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having at least one hammer in bolt-action guns
    • F41A19/46Arrangements for the selection of automatic or semi-automatic fire
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A3/00Breech mechanisms, e.g. locks
    • F41A3/12Bolt action, i.e. the main breech opening movement being parallel to the barrel axis
    • F41A3/36Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing
    • F41A3/38Semi-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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A3/00Breech mechanisms, e.g. locks
    • F41A3/12Bolt action, i.e. the main breech opening movement being parallel to the barrel axis
    • F41A3/36Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing
    • F41A3/38Semi-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
    • F41A3/40Semi-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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A35/00Accessories or details not otherwise provided for
    • F41A35/02Dust- or weather-protection caps or covers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A9/00Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/01Feeding of unbelted ammunition
    • F41A9/06Feeding of unbelted ammunition using cyclically moving conveyors, i.e. conveyors having ammunition pusher or carrier elements which are emptied or disengaged from the ammunition during the return stroke
    • F41A9/09Movable ammunition carriers or loading trays, e.g. for feeding from magazines
    • F41A9/10Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging
    • F41A9/13Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging in a vertical plane
    • F41A9/16Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging in a vertical plane which is parallel to the barrel axis
    • F41A9/17Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging in a vertical plane which is parallel to the barrel axis mounted within a smallarm
    • F41A9/18Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging in a vertical plane which is parallel to the barrel axis mounted within a smallarm feeding from a tubular magazine under the barrel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A9/00Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/01Feeding of unbelted ammunition
    • F41A9/06Feeding of unbelted ammunition using cyclically moving conveyors, i.e. conveyors having ammunition pusher or carrier elements which are emptied or disengaged from the ammunition during the return stroke
    • F41A9/09Movable ammunition carriers or loading trays, e.g. for feeding from magazines
    • F41A9/10Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging
    • F41A9/13Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging in a vertical plane
    • F41A9/16Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging in a vertical plane which is parallel to the barrel axis
    • F41A9/17Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging in a vertical plane which is parallel to the barrel axis mounted within a smallarm
    • F41A9/19Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging in a vertical plane which is parallel to the barrel axis mounted within a smallarm feeding from a tubular magazine mounted in the stock
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A9/00Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/52Arrangements for changing from automatic or magazine-loading to hand-loading
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41CSMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
    • F41C7/00Shoulder-fired smallarms, e.g. rifles, carbines, shotguns
    • F41C7/11Breakdown shotguns or rifles

Abstract

348,580. Smallarms. COSMI, R., Macerata Feltria, Italy. Feb. 13, 1930, No. 4916. Convention date, Feb. 15, 1929. [Class 119.] In an automatic shot gun comprising a barrel 10, Fig. 1, carried by a guide casing 9 pivoted at 8 to the body 7 integral with the butt 1, the magazine 2, the cartridge lifter 3, the trigger gear 49, and the bolt-actuating means 5, 6 are arranged on the body 7, whereas the breech-bolt 12, the firing-pin 150, and the recoil mechanism 14 are arranged on the guide casing 9, so that these various devices are independent and accessible when the gun is open, Fig. 5, and are brought into co-operation when the gun is closed, Fig. 1. The barrel 10 has an extension 11, which slides in the guide casing 9, and a lug 15, which slides on the rod 14 against a recoil spring 21. The forward movement of the lug 15 is limited by a nut 14<1> screwed to the end of the rod 14. The rod 14 is screwed to the lump 20 by means of which the guide casing 9 is pivoted to eyes 19 on the body 7. A fore-end stock 16 embraces the eyes 19 by a hinge shoe 18, and is secured to the front end of the rod 14 by a catch 156, which is held in locking position by a spring 159 but can be pushed back by a knob 160 to release the fore-end stock for dismantling the gun. The breech-bolt 12 slides in the guide casing 9 against a plunger 5, which bears on a piston 26 movable in the stock against a coiled spring 6. In its forward position, the breechbolt is locked by a catch 123 which is pivoted at 122 on the breech-bolt and is urged by a spring 133 into a notch 114 in the barrel extension 11. When a shot is fired, the barrel and the breech-bolt recoil together and just before the end of the stroke the tail of the catch 123 is deflected bv a cam 174 and unlocks the breech-bolt from the barrel. The barrel with its extension 11 is then run out by the spring 21, while the breech-bolt after striking a leather pad 178 on the rear wall 172 of the guide casing is held back by a catch 105. During this opening of the breech, the spent cartridge is extracted by a hook 144, Fig. 15, pivoted to the breech-bolt 12 at 143 and is ejected through side openings in the barrel extension and the guide casing by the combined action of a pivoted ejector 145 on the breech-bolt and another pivoted ejector in the barrel extension. At the end of the run out the barrel pulls a spring catch 163, 170 forward, and this releases the front end 175 of the cartridge lifter 3, which is pivoted at 101 and to the rear end of which is pivoted the catch 105 which holds the breech-bolt back. When this release occurs, the catch 105 and the rear end of the cartridge lifter 3 are depressed by the action of the spring 6 on the breech-bolt, and the front end of the cartridge lifter in rising brings a fresh cartridge in line with the barrel, and at the same time a wing at the side of the lifter shuts the ejection opening. This action is followed by the release of the breech-bolt from the catch 105, the reclosing of the breech by the spring 6, and the relocking of the breechbolt by the catch 123. As the breech-bolt reaches its forward position it depresses the front end of the cartridge lifter down again into the body 7. The lifter is held in its raised and lowered positions by the action of a spring 59 on a double-faced cam 104 on the lifter. The cartridges are stored in the magazine 2 and are fed therefrom by a spring plunger 24 to a loading chamber 22 from whence they pass to the front end of the cartridge lifter 3, which is shaped like a shovel. When the shovel is lifted to present a fresh cartridge to the barrel, the next fresh cartridge is retained behind by a tooth 3<1> on the shovel. The second cartridge behind may be free to follow on or may be held back according to the setting given to a stop 61 in the bottom of the loading chamber. This stop is urged upward to operative position by the spring 59, but can be depressed by a lever 62 pivoted at 63 and controlled by a lever 64 pivoted at 65. If the lever 64 is set in its forward position it holds up the rear end 68 of the lever 62 and this holds the stop 61 down out of action. If the lever is set back, the finger 66 comes opposite a notch 67 in the lever 62 and this allows the stop 61 to rise to operative position. With the stop in this position, the cartridges held back thereby cannot be fired. When a cartridge is in the shovel end of the lifter 3, a blade 111 pivoted at 112, Fig. 7, in the body 7 is deflected against its spring 113 by the cartridge and does not interfere with the movement of the lifter; but, when the shovel is empty either because the last cartridge from the magazine has been fired or because the feed has been interrupted by the stop 61, the blade 111 springs over the shovel and holds it down, thereby holding the rear end of the lifter 3 with the catch 105 up in engagement with the breech-bolt, which is thereby held back in the breech-opening position. If now a locking lever 28 on the body 7 is turned to unlock the guide casing 9 from the body 7, and the gun is swung open about the pivot 8, cartridges may be loaded singly into the barrel and fired, or more cartridges may be inserted on the lifter or loaded into the magazine. The guide casing 9 is locked to the body 7 by a flange 35 of the lever 28 fitting in a notch in a lump 34 on the guide casing. The unlocking rotation of the lever 28 brings a notch 37 in the flange 35 in line with the lump 34 to release this lump, and at the same time brings another notch 38 in the flange 35 in line with a vertically sliding latch 39, 30, Figs. 7 and 10, which is moved up by a spring 31 to hold the lever 28 in the open position. If the breechbolt is in the retracted condition, the latch 30 moves slightly higher up and brings a tooth 40 into a notch 75 of the plunger 5, thereby locking this plunger in its rearward position. While the gun is open the breech-bolt, which is no longer subject to the action of the spring plunger 5, may be moved forward and backward by means of a handle 132 which then swings about its pivot 131 and protrudes below the guide casing. The parts arranged in the body 7 are mostly in the loading chamber 22 and can be easily dismantled by the removal of that chamber. When the gun is folded back, the lump 34 bears on a tooth 32 of the latch 30 and moves this latch down again, unlocking the plunger 5 and releasing the flange 35, whereupon a spring 43 rotates the lever 28 to the locking position. In the folded position of the gun, wings 181 on the rear end of the guide casing 9 engage recesses 182 in the body 7 to improve the safety of the gun. The firing is performed by a sliding firing-pin 150 in the breech-bolt when struck by a hammer 4, Fig. 8, pivoted at 76 in the body 7. The hammer is cocked by the recoil of the breechbolt. This moves the hammer back sufficiently for a shoulder 86 thereon to be engaged by a spring catch 96 pivoted to the front end 87 of a sear 88 which is pivoted at 89 and is kept down by a lever 92 overlaying an arm 91 on the sear. A tooth 94 on the lever 91 rides in a groove 72 in the plunger 5, and when this plunger reaches the end of its forward stroke in closing the breech, the inclined end 73 of the groove 72 deflects the lever 92, thereby releasing the arm 91 of the sear. The hammer 4, which is operated by a spring 77 through a piston 80 and a floating link 81, then makes a small upward swing, which rocks the sear to bring a shoulder 95 thereon into engagement with a shoulder 85 on the hammer while the catch 96 is deflected and slips off the shoulder 86. The gun may now be fired by a pull on the trigger 49 which rocks the sear 88 and thereby slips the shoulder 95 of the sear off the shoulder 85 of the hammer. With this arrangement, the shock of cocking is taken up by the shoulder 86 and catch 96, so that the sensitive shoulders 85, 95 controlled by the trigger are relieved from the wear due to such shock. The firing-spring 77 is confined in a tube 78 by a plug 79 secured by a bayonet-like joint. The trigger may be locked by a pin 51 operated by a lever 52 pivoted at 53 and connected by a link 54 to a knob on the top of the stock. Further safety is also provided by wedge-shaped lugs 135 on the breechbolt locking catch 123, which lugs wedge the firing- pin back when the catch unlocks the bolt, and retain this pin back until the catch relocks the breech-bolt in the closed position. The ejection opening at the side of the gun is closed by a shield 136, Fig. 15, which is slidably mounted on the breech-bolt and is held in an extended backward position by a spring 139. When the breech-bolt recoils the shield 136 is moved forward relatively thereto and compresses the spring 139 which takes its bearing on the extractor 142
GB4916/30A 1929-02-15 1930-02-13 Improvements in or relating to small arms Expired GB348580A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT348580X 1929-02-15

Publications (1)

Publication Number Publication Date
GB348580A true GB348580A (en) 1931-05-13

Family

ID=11240421

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4916/30A Expired GB348580A (en) 1929-02-15 1930-02-13 Improvements in or relating to small arms

Country Status (4)

Country Link
US (1) US1802198A (en)
DE (1) DE577762C (en)
FR (1) FR690014A (en)
GB (1) GB348580A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1033100B (en) * 1952-04-07 1958-06-26 Armes De Guerre Fab Nat Automatic handgun
US3996685A (en) * 1975-11-14 1976-12-14 Remington Arms Company, Inc. Shell cut-off latch
US3996684A (en) * 1975-12-18 1976-12-14 Remington Arms Company, Inc. Bolt latch
DE3522027C2 (en) * 1985-06-20 1988-04-07 Dynamit Nobel Ag, 5210 Troisdorf, De
EP1214559A1 (en) * 1999-09-23 2002-06-19 Heckler & Koch GmbH Rifle with an articulated mechanism between the shaft and the rifle housing
ITMI20070106A1 (en) * 2007-01-24 2008-07-25 Beretta Armi Spa SEMI-AUTOMATIC RIFULOUS RIFLE
CN102620599A (en) * 2012-04-24 2012-08-01 齐齐哈尔猎枪有限公司 Pump type shotgun bullet conveyer

Also Published As

Publication number Publication date
US1802198A (en) 1931-04-21
DE577762C (en) 1933-06-06
FR690014A (en) 1930-09-15

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