US1811694A - Drum magazine for machine guns and automatic small arms - Google Patents

Drum magazine for machine guns and automatic small arms Download PDF

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Publication number
US1811694A
US1811694A US508405A US50840531A US1811694A US 1811694 A US1811694 A US 1811694A US 508405 A US508405 A US 508405A US 50840531 A US50840531 A US 50840531A US 1811694 A US1811694 A US 1811694A
Authority
US
United States
Prior art keywords
magazine
cartridges
conduit
chute
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
US508405A
Other languages
English (en)
Inventor
Larsson Carl Alfred
Higson Percy Reuben
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.)
Vinters Armstrongs Ltd
Original Assignee
Vickers Armstrongs Ltd
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 Vickers Armstrongs Ltd filed Critical Vickers Armstrongs Ltd
Application granted granted Critical
Publication of US1811694A publication Critical patent/US1811694A/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
    • F41A9/74—Drum magazines with radially disposed cartridges

Definitions

  • the kind of vdrum magazine to which this invention relates comprises a stationary pan portion provided with a boss having a helical or similar groove for-the reception of the bullets of the cartridges and with a helical support or a number (three for example) of communicating compartments for the rims of the cartridges whichare displaced step by step, in order to bring them one at a time into a discharge opening in, the base of the pan portion, by means of a spring-operatedcover portion or impeller provided with spacing members which are disposed between the cartridges.
  • Re-charging is preferably effected by means, of a hopper the outlet end. ofwhich DRUM MAGAZINE FOR MACZ-IENE GUN S AND AUTOMATIC SMALL ARMS 508,405, and in Great Britain April 10, 1930.
  • Figure 3 is an end View of part of the magazine showing the aforesaid chuteror i conduit, this figure also showing some of the cartridges
  • 7 v Figure 4 is alocal plan view showing the dummy cartridges in position in the chute or conduit
  • Figure 5 is a sectional end view showing how-two of the dummy cartridges are linked together
  • the pan portion B of the magazine is provided with a hollow central boss B (Figure 1) into which fits a spigot A projecting upwardly from the casing of the gun preferably at one side of the central plane of the gun as shown in Figure 2.
  • Figure 1 When the magazine is in position on the gun the outer end of the aforesaid chute or conduit B extends slightly beyond the central plane of the gun and the pan portion B is held in position by a spring catch A carried by the gun casing, this catch engaging with a projection B on the periphery of the portion B; the said pan portion also has on its lower surface a projection B fitting under a flange A on the aforesaid spigot A
  • the spring catch A In order to remove the magazine the spring catch A is released and the magazine is angularly displaced sufliciently to bring the chute or conduit B clear of the casing of the gun and the projection B clear of the flange A on the spigot whereupon the magazine as a whole can be lifted off the spigot.
  • the aforesaid removable member B is shown as being in the form of a plate slidably mounted in a bracket B attached to the pan portion B and is so situated that the cartridge in contact therewith is in the proper position for being, extracted from the chute or conduit B by the extractor on the lock or bolt of the gun.
  • the said chute or conduit is closed at the front and is closed at the rear except at the part where the outermost cartridge lies where the rear wall is cut away or formed with a gap B as shown in Figure 3 to enable the extractor to engage in front of the rim of the said cartridge.
  • the cartridge remaining in the chute or conduit B after the last one has passed through the discharge opening 13 in the base of the pan port-ion (at which time the said remaining cartridges are no longer under the influence of the cover portion or impeller) are not for the purpose of being inserted into the gun and are therefore dummies with the extracting rims removed as indicated at 0
  • These dummy cartridges (which as shown are five in number) are returned into the magazine in front of the fresh cartridges when the magazine is recharged.
  • the outermost dummy cartridge is linked to the adjacent dummy cartridge by a link C which engages in circumferential grooves in the said dummy cartridges. This link prevents the outermost dummy cartridge from falling out rearwards from the chute or conduit B when it is in contact with the plate B and is therefore opposite the aforesaid gap B in the rear wall of the chute or conduit.
  • Re-charging is preferably effected as shown in Figures 6 and 7.
  • the magazine is removed from the gun and is placed on a spigot projecting horizontally from a stand D, the pan portion B being arranged with the mouth of the chute or conduit B uppermost as shown beneath a hopper D carried by the stand.
  • the plate B having been removed the hopper is filled with cartridges and the impeller or cover portion C of the magazine is rotated in the reverse direction to that in which it moves during the working of the gun, thus causing the cartridges to enter the magazine with the dummy cartridges C in front of them as aforesaid.
  • the spring tension is adjusted by the handle E and the key E is placed in position as described in our aforesaid specification.
  • a drum magazine as claimed in claim 1 provided with a number of dummy cartridges, unprovided with extracting rims, in sutficient number to fill the chute or conduit after the last live cartridge has been extracted, these dummy cartridges being returned into the magazine in front of the supply of fresh cartridges when the magazine is being recharged.
  • a drum magazine as claimed in claim 1 provided with a number of dummy cartridges, unp rovided with extracting rims, in suflicient number to fill the chute or conduit after the last live cartridge has been extracted, these dummy cartridges being returned into the magazine in front of the supply of fresh cartridges when the magazine is being recharged, and a link connecting the outermost dummy cartridge to the adjacent dummy cartridge.
  • a recharging device for a drum magazine as claimed in claim 1 comprising a stand and a hopper, the magazine being placed on said stand with its axis horizontal and with the mouth of the chute or conduit uppermost for receiving cartridges from said hopper.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
US508405A 1930-04-10 1931-01-13 Drum magazine for machine guns and automatic small arms Expired - Lifetime US1811694A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11450/30A GB354345A (en) 1930-04-10 1930-04-10 Improvements in or relating to drum magazines for machine guns and automatic small arms

Publications (1)

Publication Number Publication Date
US1811694A true US1811694A (en) 1931-06-23

Family

ID=9986474

Family Applications (1)

Application Number Title Priority Date Filing Date
US508405A Expired - Lifetime US1811694A (en) 1930-04-10 1931-01-13 Drum magazine for machine guns and automatic small arms

Country Status (5)

Country Link
US (1) US1811694A (en(2012))
BE (1) BE376255A (en(2012))
DE (1) DE591816C (en(2012))
FR (1) FR708597A (en(2012))
GB (1) GB354345A (en(2012))

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2460384A (en) * 1944-05-25 1949-02-01 United Shoe Machinery Corp Gun-loading mechanism
US12305953B1 (en) * 2024-07-10 2025-05-20 Jordan Automated Weapons System, LLC Jam-resistant drum magazine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2460384A (en) * 1944-05-25 1949-02-01 United Shoe Machinery Corp Gun-loading mechanism
US12305953B1 (en) * 2024-07-10 2025-05-20 Jordan Automated Weapons System, LLC Jam-resistant drum magazine

Also Published As

Publication number Publication date
BE376255A (en(2012))
GB354345A (en) 1931-08-10
FR708597A (fr) 1931-07-25
DE591816C (de) 1934-01-27

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