US2778276A - Mechanism on automatic firearms with revolver drums - Google Patents

Mechanism on automatic firearms with revolver drums Download PDF

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Publication number
US2778276A
US2778276A US216885A US21688551A US2778276A US 2778276 A US2778276 A US 2778276A US 216885 A US216885 A US 216885A US 21688551 A US21688551 A US 21688551A US 2778276 A US2778276 A US 2778276A
Authority
US
United States
Prior art keywords
drum
cartridge
starwheel
moved
automatic firearms
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
US216885A
Other languages
English (en)
Inventor
Hepperle Erwin
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
Priority to CH285816D priority Critical patent/CH285816A/de
Application filed by Werkzeugmaschinenfabrik Oerlikon Buhrle AG filed Critical Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Priority to US216885A priority patent/US2778276A/en
Priority to GB18270/51A priority patent/GB689155A/en
Priority to DE1951V0003804 priority patent/DE883260C/de
Priority to FR1043934D priority patent/FR1043934A/fr
Priority to BE506568D priority patent/BE506568A/fr
Priority to NL164849A priority patent/NL87575C/nl
Application granted granted Critical
Publication of US2778276A publication Critical patent/US2778276A/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
    • F41A9/29—Feeding of belted ammunition
    • F41A9/30—Sprocket-type belt transporters
    • 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
    • F41A9/01—Feeding of unbelted ammunition
    • F41A9/24—Feeding of unbelted ammunition using a movable magazine or clip as feeding element
    • F41A9/26—Feeding of unbelted ammunition using a movable magazine or clip as feeding element using a revolving drum magazine
    • F41A9/27—Feeding of unbelted ammunition using a movable magazine or clip as feeding element using a revolving drum magazine in revolver-type guns

Definitions

  • the present invention relates to a mechanism on the feed device of automatic firearms with revolver drums.
  • the cartridge belt is moved into the gun by means of a starwheel arranged coaxially with and behind the drum and coupled to the latter.
  • the cartridg'es are successively moved from the starwheel into the drum by means of an axially movable slide. With each stroke of the axially movable slide a cartridge is moved over half of its travel. Therefore at the end of each movement of the mechanism one cartridge is in an intermediate position between starwheel and drum.
  • drum casing with the barrel is movably arranged in the gun casing to reduce the recoil forces it is possible that the cartridge in the intermediate position is moved due to acceleration forces in such a way that it cannot be seized by the lug of the axially movable slide and thus cannot be moved into the drum.
  • the present invention eliminates this disadvantage. It is characterized in that on the starwheel movable springsupported elements are arranged which engage with the bottom of the cartridges in the intermediate position and secure them against movement to the rear.
  • Fig. 1 is a longitudinal section through the gun
  • Fig. 2 is a longitudinal section through the gun immediately after firing of a round
  • Fig. 3 is a longitudinal section of the starwheel with one cartridge in the rear position and another cartridge in intermediate position;
  • Fig. 4 is a sectionalong the line IV-IV in Fig. 3.
  • the barrel 1 is fastened by means of a bayonet to the casing 2 which contains the drum 3.
  • the drum 3 is fitted with a number of cartridge chambers which, on rotation of the drum 3, are successively moved in front of the barrel 1.
  • the cartridges are moved in known manner in two steps from the starwheel into the cartridge chambers of the drum 3 by means of the lugs 10, 11 of the slide 4.
  • drum 3 is effected in known manner by means of a slide Between the arms of the starwheel dogs 12 are provided.
  • the dogs 12 are pivotable about the axis 13 and subjected to the action of the spring 14 (cf. Fig. 3).
  • the drum casing is fitted with an ejector duct 15.
  • the dogs 12 are depressed on passing the ejection duct so as not to interfere with the ejection of the cartridges.
  • the cartridge to be moved into the drum is seized and moved forward by the lug 10 during the forward run of the slide while the drum chamber and sprocket 9 containing the cartridge pass through their lowermost position and rotate to the extent of half a chamber spacing.
  • the cartridge slides over the dog 12 which is depressed against the action of the spring 14.
  • the dog 12 pivots under the action of the spring 14 until its face 12a rests against the face 9a of the star wheel.
  • the face 12b is pressed immediately behind the bottom of the cartridge, thus preventing the latter from sliding to the rear.
  • the slide 4 has made a backward run and turned the drum and sprocket by half a chamber spacing again.
  • the cartridge is moved by the rod 11 from its intermediate position into the chamber of the drum. The same sequence of operations is repeated for the introduction of each cartridge.
  • a toothed starwheel arranged coaxially with and behind the drum for moving a cartridge belt into the gun, means coupling said starwheel with said drum, a longitudinally movable slide for successively moving cartridges from their belt links while in the starwheel to an intermediate position in one stroke, and in the next stroke from the intermediate position into a cartridge chamber of the drum, movable spring-biased elements mounted on the hub of the star wheel for engagement with the bottoms of the cartridges when in their intermediate position to secure them against movement to the rear.
  • Mechanism in accordance with claim 1 characterized in that the elements are pivotable, spring-biased dogs which are pivotally mounted between the teeth of the starwheel.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Specific Conveyance Elements (AREA)
  • Toys (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Branching, Merging, And Special Transfer Between Conveyors (AREA)
US216885A 1950-10-23 1951-03-22 Mechanism on automatic firearms with revolver drums Expired - Lifetime US2778276A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CH285816D CH285816A (de) 1950-10-23 1950-10-23 Patronenzuführvorrichtung an automatischen Feuerwaffen mit Revolvertrommel.
US216885A US2778276A (en) 1950-10-23 1951-03-22 Mechanism on automatic firearms with revolver drums
GB18270/51A GB689155A (en) 1950-10-23 1951-08-01 Improvements in automatic firearms
DE1951V0003804 DE883260C (de) 1950-10-23 1951-10-06 Schaltvorrichtung an automatischen Feuerwaffen mit Revolvertrommel
FR1043934D FR1043934A (fr) 1950-10-23 1951-10-17 Dispositif pour armes à feu automatiques à tambour revolver
BE506568D BE506568A (fr) 1950-10-23 1951-10-20 Dispositif pour armes a feu automatiques a tambour revolver
NL164849A NL87575C (nl) 1950-10-23 1951-10-22 Patronenaanvoerinrichting voor een automatisch vuurwapen met revolvertrommel

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH1043934X 1950-10-23
CH285816T 1950-10-23
CH689155X 1950-10-23
US216885A US2778276A (en) 1950-10-23 1951-03-22 Mechanism on automatic firearms with revolver drums

Publications (1)

Publication Number Publication Date
US2778276A true US2778276A (en) 1957-01-22

Family

ID=61556560

Family Applications (1)

Application Number Title Priority Date Filing Date
US216885A Expired - Lifetime US2778276A (en) 1950-10-23 1951-03-22 Mechanism on automatic firearms with revolver drums

Country Status (7)

Country Link
US (1) US2778276A (nl)
BE (1) BE506568A (nl)
CH (1) CH285816A (nl)
DE (1) DE883260C (nl)
FR (1) FR1043934A (nl)
GB (1) GB689155A (nl)
NL (1) NL87575C (nl)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2920535A (en) * 1957-04-16 1960-01-12 Brevets Aero Mecaniques Supplying ammunition to automatic guns
US3024705A (en) * 1960-01-26 1962-03-13 Robert A Rosenblum Rammer
US3983782A (en) * 1975-02-25 1976-10-05 General Electric Company Ammunition loading system

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3000265A (en) * 1952-10-29 1961-09-19 Russell S Robinson Cartridge feeding mechanism for firearms
US2933981A (en) * 1953-10-26 1960-04-26 Paul E Anderson Automatic repeating rocket launcher
US2820400A (en) * 1954-02-03 1958-01-21 John F O'brien Cartridge link and feedwheel for a revolver-type gun
US2876680A (en) * 1955-06-28 1959-03-10 Arthur R Meyer Pivotally mounted oscillating breech member coupled with a ramactor mechanism
US2900876A (en) * 1956-09-11 1959-08-25 John G Brubaker Combined rammer and cam means for chambering cartridges in revolver-type guns
FR2587471B1 (fr) * 1985-09-13 1989-06-23 France Etat Armement Dispositif d'introduction de munitions dans le barillet d'une arme automatique
DE102006006961A1 (de) * 2006-02-14 2007-08-23 Oerlikon Contraves Ag Munitionszuführung mit automatischer Kupplung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US350098A (en) * 1886-10-05 Salvator
US2388967A (en) * 1943-04-17 1945-11-13 Lockheed Aircraft Corp Ammunition roller

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US350098A (en) * 1886-10-05 Salvator
US2388967A (en) * 1943-04-17 1945-11-13 Lockheed Aircraft Corp Ammunition roller

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2920535A (en) * 1957-04-16 1960-01-12 Brevets Aero Mecaniques Supplying ammunition to automatic guns
US3024705A (en) * 1960-01-26 1962-03-13 Robert A Rosenblum Rammer
US3983782A (en) * 1975-02-25 1976-10-05 General Electric Company Ammunition loading system

Also Published As

Publication number Publication date
BE506568A (fr) 1951-11-14
DE883260C (de) 1953-07-16
FR1043934A (fr) 1953-11-12
NL87575C (nl) 1958-03-15
CH285816A (de) 1952-09-30
GB689155A (en) 1953-03-18

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