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US2596293A - Cartridge feeding mechanism for the magazines of automatic firearms - Google Patents

Cartridge feeding mechanism for the magazines of automatic firearms Download PDF

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Publication number
US2596293A
US2596293A US788890A US78889047A US2596293A US 2596293 A US2596293 A US 2596293A US 788890 A US788890 A US 788890A US 78889047 A US78889047 A US 78889047A US 2596293 A US2596293 A US 2596293A
Authority
US
United States
Prior art keywords
cartridges
magazine
magazines
cartridge
feeding
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
US788890A
Other languages
English (en)
Inventor
Schalkli Otto
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.)
Rheinmetall Air Defence AG
Original Assignee
Werkzeugmaschinenfabrik Oerlikon Buhrle AG
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 Werkzeugmaschinenfabrik Oerlikon Buhrle AG filed Critical Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Application granted granted Critical
Publication of US2596293A publication Critical patent/US2596293A/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
    • F41A9/73—Drum magazines
    • F41A9/75—Drum magazines having a spiral cartridge channel
    • 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
    • F41A9/50—External power or control systems
    • F41A9/51—Boosters, i.e. externally-powered motors
    • 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
    • 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

Definitions

  • Cartridge feeding involves certain difficulties owing, for instance, on the one hand, to the substantial weight of each individual cartridge in weapons using ammunition of 20 mm. or larger size, and, on the other hand, to the rate of fire in modern weapons being close to, or even reaching, 1000 rounds per minute, so that substantial power is required to ensure the acceleration and regular feeding of the individual cartridges within the available time.
  • the present invention provides a cartridge feeding mechanism for automatic fire arms, in which the cartridges are piled up in a magazine and. are under the action of a power source which exerts pressure on the cartridges towards the magazine outlet, measures being provided to ensure the regular feeding of the cartridges even at maximum firing rates.
  • these measures provide for a feeding appliance which is located close to the magazine outlet and is under the pressure of an additional power source.
  • the feeding appliance may be actuated by a spring which is tensioned when the magazine is being filled, or electricalmeans, for instance an electromotor or electro-magnets, maybe provided for this purpose.
  • the feeding appliance can suitably consist of a star-shaped member adapted to engage the cartridges.
  • Figure 4 shows the magazine outlet in section, the breech block being in its rearmost position
  • Figure 5 is a view similar to Figure 4 when the breech block has moved forwards from its rearmost position to uncover the outlet.
  • the cartridges 2 are arranged in a channel 3 of the magazine I, the filling of which is effected in the usual manner.
  • the feeder or follower 4 is under the pressure of a spring 5 and engages behind the rearmost cartridge, being tensioned when the cartridges are introduced into the magazine.
  • the channel 3 which is spiral or worm-shaped is completely filled with cartridges.
  • a star-shaped member 6 is fitted close to the magazine outlet and is connected by a pinion l with a toothed wheel 8, mounted on the same shaft as a spring 9 which, as a result of the rotation of the star-shaped member 5, is tensioned as and when the cartridges are introduced into the magazine.
  • At the magazine outlet locking pawls ID are fitted.
  • the last three cartridges are pushed forward by the starshaped member 6, driven by the spring 9, as soon as a, cartridge is introduced into the cartridge chamber, and the breech block has travelled rearward to such an extent as to leave the feedin opening free.
  • the spring 9 has no difficulty in accelerating the required three cartridges even in the shortest time, thus ensuring even at maximum firing rate that the cartridges shall be quickly and reliably fed.
  • a time interval remains in which the magazine spring 5 is easily able to bring up all cartridges piled up on top of one another.
  • the feeding means which in the constructional example are represented by a star-shaped member, need not in all circumstances be driven by a spring 9.
  • the driving power can also be supplied by electrical means, for instance an electro-motor or electro-magnets.
  • the feeding of the cartridges piled up in the magazine can also be effected by the said electrical means, instead of by a spring.
  • a cartridge-feeding device for automatic firearms comprising, in combination, a magazine having a spiral passage formed therein for the cartridges, a spring-tensioned follower located within said magazine at the. inner end of said passage and adapted to eject said cartridgesout of the outer end of said passage, the tension of said follower feeding all of said cartridges to said outer end, a separate cartridge-shifting device located in said magazine adjacent said outer end and adapted to engage cartridges-adjacent said outer end to accelerate the ejection thereof, and a separate spring connected; with said car; tridge-shifting device to operate said cartridge,- shifting device and thereby accelerate the removal of the cartridgesfrom said passage.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • De-Stacking Of Articles (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Toys (AREA)
US788890A 1946-11-27 1947-11-29 Cartridge feeding mechanism for the magazines of automatic firearms Expired - Lifetime US2596293A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH647768X 1946-11-27

Publications (1)

Publication Number Publication Date
US2596293A true US2596293A (en) 1952-05-13

Family

ID=4525892

Family Applications (1)

Application Number Title Priority Date Filing Date
US788890A Expired - Lifetime US2596293A (en) 1946-11-27 1947-11-29 Cartridge feeding mechanism for the magazines of automatic firearms

Country Status (4)

Country Link
US (1) US2596293A (xx)
DE (1) DE844562C (xx)
FR (1) FR956038A (xx)
GB (1) GB647768A (xx)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756637A (en) * 1951-02-17 1956-07-31 Brev Aero Mecaniques S A Soc Cartridge magazines for automatic firearms
US3382765A (en) * 1965-08-10 1968-05-14 Avco Corp Multiple drum-type magazine of particular utility with rocket-boosted ammunition and featuring radially inward helical feed toward a common reciprocal feed slide
US8291806B2 (en) * 2010-12-27 2012-10-23 Paul J Rael Helical ammunition magazine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL107699C (xx) * 1957-05-16
EP0111780B1 (de) * 1982-12-22 1988-01-20 Werkzeugmaschinenfabrik Oerlikon-Bührle AG Fördervorrichtung zum Zuführen von Patronen zu einer Feuerwaffe aus einem Trommelmagazin

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1314013A (en) * 1919-08-26 Cartridge-feeding device
US1563052A (en) * 1925-07-24 1925-11-24 Vollmer Heinrich Cartridge-feed mechanism
US1596178A (en) * 1925-01-09 1926-08-17 Haubroe Werner Christia Lassen Drum-shaped cartridge magazine for machine guns or the like
DE527675C (de) * 1927-09-16 1931-06-20 Siemens Schuckertwerke Akt Ges Patronenfoerdervorrichtung fuer automatische Gewehre
US2161696A (en) * 1935-10-02 1939-06-06 Blacker Latham Valenti Stewart Ammunition magazine
GB539414A (en) * 1939-11-16 1941-09-10 William Denis Kendall Improvements in magazines for automatic firearms
US2342065A (en) * 1942-02-09 1944-02-15 Bell Aircraft Corp Oednance
US2394606A (en) * 1943-02-17 1946-02-12 Gazda Antoine Automatic feed mechanism for loading ordnance, tools, and the like
US2436404A (en) * 1942-05-27 1948-02-24 Hughes Tool Co Ammunition booster for automatic guns

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1314013A (en) * 1919-08-26 Cartridge-feeding device
US1596178A (en) * 1925-01-09 1926-08-17 Haubroe Werner Christia Lassen Drum-shaped cartridge magazine for machine guns or the like
US1563052A (en) * 1925-07-24 1925-11-24 Vollmer Heinrich Cartridge-feed mechanism
DE527675C (de) * 1927-09-16 1931-06-20 Siemens Schuckertwerke Akt Ges Patronenfoerdervorrichtung fuer automatische Gewehre
US2161696A (en) * 1935-10-02 1939-06-06 Blacker Latham Valenti Stewart Ammunition magazine
GB539414A (en) * 1939-11-16 1941-09-10 William Denis Kendall Improvements in magazines for automatic firearms
US2342065A (en) * 1942-02-09 1944-02-15 Bell Aircraft Corp Oednance
US2436404A (en) * 1942-05-27 1948-02-24 Hughes Tool Co Ammunition booster for automatic guns
US2394606A (en) * 1943-02-17 1946-02-12 Gazda Antoine Automatic feed mechanism for loading ordnance, tools, and the like

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756637A (en) * 1951-02-17 1956-07-31 Brev Aero Mecaniques S A Soc Cartridge magazines for automatic firearms
US3382765A (en) * 1965-08-10 1968-05-14 Avco Corp Multiple drum-type magazine of particular utility with rocket-boosted ammunition and featuring radially inward helical feed toward a common reciprocal feed slide
US8291806B2 (en) * 2010-12-27 2012-10-23 Paul J Rael Helical ammunition magazine
US8813630B2 (en) 2010-12-27 2014-08-26 Paul J Rael Helical ammunition magazine

Also Published As

Publication number Publication date
GB647768A (en) 1950-12-20
FR956038A (xx) 1950-01-23
DE844562C (de) 1952-07-21

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