US2360035A - Firearm magazine - Google Patents

Firearm magazine Download PDF

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Publication number
US2360035A
US2360035A US331473A US33147340A US2360035A US 2360035 A US2360035 A US 2360035A US 331473 A US331473 A US 331473A US 33147340 A US33147340 A US 33147340A US 2360035 A US2360035 A US 2360035A
Authority
US
United States
Prior art keywords
cartridge
passage
magazine
cartridges
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 - Lifetime
Application number
US331473A
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English (en)
Inventor
Birkigt Marc
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 US2360035A publication Critical patent/US2360035A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F41A9/61—Magazines
    • F41A9/64—Magazines for unbelted ammunition
    • F41A9/65—Box magazines having a cartridge follower
    • F41A9/70—Arrangements thereon for discharging, e.g. cartridge followers or discharge throats
    • 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
    • F41A9/54—Cartridge guides, stops or positioners, e.g. for cartridge extraction

Definitions

  • the present invention relates to feed mechanisms and magazines for firearms and in particular automatic firearms.
  • the invention is more especially, although not exclusively, concerned with small bore automatic guns.
  • the chief object of the present invention is to provide a device of the type above mentioned which is better adapted to meet the requirements of practice than those used for the same purpose up to this time.
  • the firearm includes, in combination with the magazine, means, adapted to permit free movement of the cartridges toward the outlet of the magazine, for imperatively guiding said cartridges for at least a part of the substantially axial displacement they are given for eng ging them into the arm with which the magazine is enacting.
  • the means above mentioned include a guiding member provided with at least one surface adapted to bear on one of the cartridges in the magazine, said member being movable and spring mounted so that it can be retracted out of the path of movement of the cartridges on their way toward the outlet of the magazine.
  • the means above mentioned include guiding surfaces carried in fixed position by the magazine and arranged in such manner as to permit the free passage of the front portions of the cartridges, which are of smaller diameter than the rear portions, toward the outlet of the magazine, and to guide the cartridges, after they have been moved forward along the axis of the gun bore, by coacting with said rear portions of the cartridges, successively.
  • Fig. 1 is an axial sectional view of a feed device for an automatic firearm, said device being made according to the first embodiment of the present invention
  • Fig. 2 is a transverse sectional view on the line II-II of Fig. 1;
  • Fig. 3 is an axial sectional view of a feed device for an automatic firearm, said device being made according to another embodiment of the present invention
  • Fig74 is a transverse sectional view on the line IV'IV of Fig. 3;
  • Fig. 5 is a transverse sectional view on the line V--V of Fig. 3.
  • the means in question are advantageously constituted by guiding surfaces projecting to the inside of said passage so as to ensure a linear guiding of the first cartridge 3a to be introduced into the arm.
  • the upper guiding surface may act either directly on the upper part of the case of cartridge 3a (case illustrated by Fig. 3) or on the upper part of the case of a. cartridge located above, for instance cartridge 3b located immediately above cartridge id (as illustrated by Fig. 1).
  • the upper guiding surface is formed on a member adapted to be retracted, against the action of elastic means, so as to permit the free passage of the cartridges in a downward direction through passage 2.
  • this upper guiding surface is located, in this embodiment, in the portion of passage 2 through which passes the front portion of the cartridges during the downward movement thereof, and this guiding surface projects inside the passage to a distance such as to afford, between the opposite walls of the passage, an interval greater than the diameter of the front portion of the cartridge but smaller than the diameter of the case of the cartridge, whereby, in the course of the forward axial movement of said cartridge, the
  • the lower edge of nose 8 forms a cylindrical groove 8 which constitutes the upper guiding surface.
  • I further provide elastic means, such for instance as a spring Ill adapted to urge rocking member 8 toward the position (shown in solid lines) in which it projects on the inside of passage 2 and guiding surface 0 bears against the case of cartridge 8b, said'elastic means enabling, on the contrary, member I to occupy the position (shown in dotted lines) when the downward movement of the cartridges through passage 2 compels nose 6 to move outwardly.
  • elastic means such for instance as a spring Ill adapted to urge rocking member 8 toward the position (shown in solid lines) in which it projects on the inside of passage 2 and guiding surface 0 bears against the case of cartridge 8b
  • cartridge 3a is longitudinally guided, at the lower part by guiding surfaces 5 carried by the walls of passage 2, and, at the upper part, by the lower part of the cartridge lb located immediately above it, said cartridge 31: being securely held in position by member 8, which is then in the position shown by the solid lines.
  • the device does not include any piece movably mounted with respect to the magazine or the feed passage.
  • I provide, on the inner walls of passage 2, two upper guiding surfaces 901. located, as above explained, in the zone of said passage where the front portions of the cartridges (cartridge 312, Fig. 4) pass in the course of their downward movement through passage 2. Therefore, these guiding surfaces coact with the case of the cartridge that is being moved axially toward the front for introduction into the gun bore only when said cartridge has already undergone a certain displacement, suillcient for bringing its case under the guiding surfaces in question (cartridge 30 of Figs. 3 and 4), said case being then guided both by the upper and the lower guiding surfaces, respectively designated by reference characters 9a and 5.
  • the cartridge that is being pushed into the gun bore is correctly guided by the cooperation of surfaces 9a and 5.
  • the next cartridge, 31 is pushed downwardly. Owing to the fact that the front part of said cartridge is of smaller diameter than the minimum distance between projections 9a, said cartridge can freely move down between the walls of passage 2. Then, when the cartridge is pushed frontwardly by the breech mechanism, the case thereof comes under projections to and as said case is of a diameter greater than the distance between said projections, thecartridge is now guided both by surfaces 9a and by surfaces 5.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Gears, Cams (AREA)
US331473A 1939-10-14 1940-04-24 Firearm magazine Expired - Lifetime US2360035A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR863465X 1939-10-14

Publications (1)

Publication Number Publication Date
US2360035A true US2360035A (en) 1944-10-10

Family

ID=9343242

Family Applications (1)

Application Number Title Priority Date Filing Date
US331473A Expired - Lifetime US2360035A (en) 1939-10-14 1940-04-24 Firearm magazine

Country Status (6)

Country Link
US (1) US2360035A (enrdf_load_stackoverflow)
BE (1) BE441561A (enrdf_load_stackoverflow)
CH (1) CH224230A (enrdf_load_stackoverflow)
DE (1) DE863465C (enrdf_load_stackoverflow)
FR (1) FR863836A (enrdf_load_stackoverflow)
GB (1) GB605854A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2415144A (en) * 1943-06-17 1947-02-04 Molins Machine Co Ltd Rounds feeding device
US2429831A (en) * 1943-03-19 1947-10-28 Oerlikon Buehrle Ag Magazine for automatic firearms
US2590214A (en) * 1946-04-12 1952-03-25 Autoyre Co Inc Feeding mechanism for automatic guns
US4433609A (en) 1981-08-17 1984-02-28 Fmc Corporation Suspended loop ammunition magazine
US20120117840A1 (en) * 2010-11-04 2012-05-17 Scott Ryan Chewning High capacity firearm magazine feed mechanism
CN113932645A (zh) * 2021-09-27 2022-01-14 宋益伶 转向供弹机构及其适配供弹具

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0054089B1 (en) * 1980-12-11 1985-05-29 Chartered Industries Of Singapore Private Limited Drum magazine for a gun
US4445418A (en) * 1980-12-11 1984-05-01 Chartered Industries Of Singapore Private Limited Drum magazine for a gun

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2429831A (en) * 1943-03-19 1947-10-28 Oerlikon Buehrle Ag Magazine for automatic firearms
US2415144A (en) * 1943-06-17 1947-02-04 Molins Machine Co Ltd Rounds feeding device
US2590214A (en) * 1946-04-12 1952-03-25 Autoyre Co Inc Feeding mechanism for automatic guns
US4433609A (en) 1981-08-17 1984-02-28 Fmc Corporation Suspended loop ammunition magazine
US20120117840A1 (en) * 2010-11-04 2012-05-17 Scott Ryan Chewning High capacity firearm magazine feed mechanism
US8919022B2 (en) * 2010-11-04 2014-12-30 Scott Ryan Chewning High capacity firearm magazine feed mechanism
CN113932645A (zh) * 2021-09-27 2022-01-14 宋益伶 转向供弹机构及其适配供弹具

Also Published As

Publication number Publication date
DE863465C (de) 1953-01-19
BE441561A (enrdf_load_stackoverflow)
FR863836A (fr) 1941-04-10
CH224230A (fr) 1942-11-15
GB605854A (en) 1948-08-03

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