US3611869A - Automatic firearm with a changeover cartridge feed device - Google Patents

Automatic firearm with a changeover cartridge feed device Download PDF

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Publication number
US3611869A
US3611869A US822513A US3611869DA US3611869A US 3611869 A US3611869 A US 3611869A US 822513 A US822513 A US 822513A US 3611869D A US3611869D A US 3611869DA US 3611869 A US3611869 A US 3611869A
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US
United States
Prior art keywords
housing
cartridge
breech block
feed
munition
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
US822513A
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English (en)
Inventor
Gerhard Hupp
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.)
Mauser Werke AG
Original Assignee
Mauser Werke 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 claimed from DE19681703378 external-priority patent/DE1703378C3/de
Application filed by Mauser Werke AG filed Critical Mauser Werke AG
Application granted granted Critical
Publication of US3611869A publication Critical patent/US3611869A/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
    • F41A9/37—Feeding two or more kinds of ammunition to the same gun; Feeding from two sides

Definitions

  • the strippers are controlled by a control device the operating member of which consists of a longitudinally reciprocable slidable munition selector slide which when in a forwardly adjusted end position renders the feed device for one type of cartridge operative, while when the munition selector slide has been adjusted to a rear end position it renders the feed device for another type of cartridge operative.
  • the invention relates to an automatic firearm with a changeover cartridge-feed device for accommodating different types of projectiles.
  • the invention relates to an automatic firearm with a forward and rearward moving breech block and a changeover cartridge-feeding device which accommodates at least two different types of cartridges, for instance, blasting cartridges and armor-piercing cartridges.
  • a particular object of the invention is to provide the munition selector slide with a guide slot arranged inclined to the longitudinal path of movement of the slide, whereby a shift bolt of a control slide projects into this guide slot.
  • the cartridge feed belts are arranged one above the other.
  • the present invention has as a still further object to provide control valves or control cocks for the gas delivered to the cartridge feed, whereby these control valves or cocks are adjusted or operated by the manually operated munition selector slide.
  • the respective control valves or clocks may be provided with gear segments which are operated by suitable toothed racks provided on the munition selector slide.
  • Still another object of the invention is to provide the drive pistons of the drive device for the munition feed and which are subject to the action of a return spring with a shift bolt arranged in the housing of the feed device and movably guided therein in the longitudinal direction of the weapon.
  • This shift bolt extends through a shift slot of a rotatably mounted changeover sleeve which by means of gear teeth advances the pawl slide of the feed device.
  • FIG. 1 illustrates a vertical longitudinal section of a portion of the firearm of the invention
  • FIG. 2 illustrates a cross-sectional view along the line 11-" of FIG. I and FIG. 3 is a view of the weapon looking in the direction of the munition feed (in the direction of the arrow A in FIG. 2) so that the munition selector slide is visible.
  • the housing of the weapon has inserted therein the barrel 11 and has arranged therein movable to and fro a breech block 12 which is acted upon by a closure spring 13.
  • the breech block 12 is provided with two pivotally mounted cartridge strippers l4, 15 disposed one above the other and which are subjected to the action of springs 16 which engage the strippers so as to move the same into their stripping position.
  • the housing 10 of the weapon is provided each with a cartridge feeding device 17 and 18 which in the illustrated embodiment of the invention comprises a belt-feeding device in which the cartridge belts are fed from the left and in which the empty belts leave toward the right.
  • the empty shells will be ejected toward the right between the cartridge belts l7 and 18.
  • the feed housings 17a and 18a are provided with feed slides 17c and carrying feed pawls 17b and 18b and also belt-holding latches 17d and 1811.
  • the lower cartridge feed device 17 are introduced, for instance, the blasting cartridges, while the upper cartridge feed device is used for feeding armor-piercing cartridges.
  • the housing of the weapon is provided with recesses which are used for transversely slidably guiding a control slide 19 which has thereon two control jaws 19a and 1911 which are connected with each other by a transverse web 19c upon whichis seated a shift bolt 19d.
  • a munition selector slide 20 At the cartridge insertion side of the housing 10 of the weapon is arranged longitudinally slidable along the axis of the weapon a munition selector slide 20, for instance, by means of guide bolts 10a which are arranged on the housing and engage a guide slot 20a on the munition selector slide 20 (FIG. 3).
  • the munition selector slide 20 has adjacent its rear end a shift slot 20b which extends inclined to the longitudinal axis of the slide 20 and into which extends the shift bolt 19d of the control slide 19.
  • the rear end of the munition selector slide 20 has attached thereto an operating member, such as a spherical knob 200.
  • the munition selector slide 20 At the forward end, the munition selector slide 20 is provided with two transversely spaced oppositely and parallel disposed toothed racks 20d and 20e.
  • the feed slides 17c and 18c are actuated by gas-operated pistons 21, 22 which by means of gas passages 23 are supplied with gas taken from the barrel 11. These pistons 21, 22 are subjected to the action of return springs 24 and at their rear ends are provided with buffers 21a and 22a.
  • the gas-operated pistons 21 and 22 are provided with shift bolts 21b and 22b which are arranged in the housings 17a and 18a of the cartridge feed devices 17 and 18 in the longitudinal direction of the weapon and prevent a rotative movement of the pistons.
  • the shift bolts 21b and 22b project through shift slots 25a and 26a arranged in shift sleeves 25 and 26 which are rotatably journaled in the feed housings 17a and 18a.
  • the shift sleeves 25 and 26 are provided with gear teeth 25b and 26b which mesh with the respective gear teeth on the feed slides 17c and 18c.
  • the gas passages 23 have arranged in the same control valves or control cocks 27 and 28 which are controlled in such a manner that in each instance the valve 27 or 28 associated with its respective piston is in open position which shifts the feed slide 17c or 180 of the desired cartridge type selected by the munition selector slide 20.
  • the adjustment of the valves 27, 28 is effected by the munition selector slide 20, whose rack teeth 20d and 20c mesh with the gear segments 27a and 28a.
  • the operation of the munition selector and feed device is as follows:
  • the munition selector slide 20 is in its rear position in which it is held by a locking device against unintentional slidable movement.
  • the shift bolt 19d of the control slide 19 is disposed at the lower end of the shift slot 20b.
  • the control jaw 19a is in its outer position in which the stripper 14 for the cartridges of the feed device 17 is not influenced, so that during the advancing movement of the breech block 12, one eartridge from the feed device 17 is slidably moved into the barrel.
  • the control jaw 19b is in its inner position in which the stripper 15 is held in its inserted inactive position.
  • the valve 27 for the gas supply to the piston 21 is open; the valve 28 for the gas supply to the piston 22 is closed, therefore only the cartridge feed device 17 is operative.
  • the munition selector slide 20 is slidably moved into its forward end position in which it is also secured by a locking device against unintentional movement.
  • a housing having a front end and a rear end, a breech block in said housing movable forwardly and rearwardly therein, two cartridge feed belts movable transversely of said breech block at opposite sides of the path of movement of said breech block, cartridge strippers mounted in said breech block adjacent the front end thereof for movement between a transversely projected operative position and a transversely retracted inoperative position, a stripper control slide mounted in said housing rearwardly of said feed belts and movable transversely of said breech block between two end positions in each of which it actuates one of said strippers to its retracted inoperative position while permitting the other stripper to occupy its projected operative position thereby causing said other stripper to engage and force a cartridge forwardly from a selected one of said feed belts at the forwardly movement of said breech block, a munition selector slide mounted in said housing for movement longitudinally thereof in operative engagement with said stripper control slide to selectively move said stripper
  • a housing having a front end and a rear end, a breech block in said housing movable forwardly and rearwardly therein, two cartridge feed belts movable transversely of said breech block at opposite sides of the path of movement of said breech block, cartridge strippers mounted in said breech block adjacent the front end thereof for movement between a transversely projected operative position and a transversely retracted inoperative position, stripper control means mounted in said housing rearwardly of said feed belts, munition selector means mounted in said housing for movement in engagement with said stripper control means to selectively move said stripper control means between two positions in each of which it actuates one of said strippers to said inoperative position and the other stripper to said operative position in which it engages a cartridge and moves it forwardly from a selected one of said feed belts at the forwardly movement of said breech block, separate means for advancing each of said feed belts step by step, conduit means in said housing connecting the interior of the firearm barrel with each of said

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
US822513A 1968-05-10 1969-05-07 Automatic firearm with a changeover cartridge feed device Expired - Lifetime US3611869A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681703378 DE1703378C3 (de) 1965-12-23 1968-05-10 Automatische Feuerwaffe mit vor- und zurücklaufendem Verschlußstück und mit auf unterschiedliche Patronenarten umschaltbaren Patronentransporteinrichtungen

Publications (1)

Publication Number Publication Date
US3611869A true US3611869A (en) 1971-10-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
US822513A Expired - Lifetime US3611869A (en) 1968-05-10 1969-05-07 Automatic firearm with a changeover cartridge feed device

Country Status (3)

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US (1) US3611869A (enrdf_load_stackoverflow)
JP (1) JPS4826639B1 (enrdf_load_stackoverflow)
SE (1) SE357432B (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4004489A (en) * 1975-11-03 1977-01-25 The United States Of America As Represented By The Secretary Of The Army Dual selective feed mechanism for automatic weapons
US4223589A (en) * 1977-12-23 1980-09-23 Rheinmetall Gmbh Double-feed sprocket arrangement for munition changing in automatic guns
US10900725B2 (en) * 2016-11-15 2021-01-26 Nexter Systems Belt ammunition feeding device for dual-feed automatic weapon
US11022386B2 (en) 2019-08-15 2021-06-01 Smith & Wesson Inc. Firearm breech cover interlock
US11035636B2 (en) 2019-07-26 2021-06-15 Smith & Wesson Inc. Shotgun ammunition feeding system
US11306995B2 (en) 2019-08-06 2022-04-19 Smith & Wesson Inc. Shotgun configuration
US11326845B2 (en) 2019-08-13 2022-05-10 Smith & Wesson Inc. Firearm having reciprocable breech cover

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR954476A (enrdf_load_stackoverflow) * 1950-01-03
NL6617800A (enrdf_load_stackoverflow) * 1965-12-23 1967-06-26
US3452640A (en) * 1966-09-29 1969-07-01 Brevets Aero Mecaniques Automatic and semi-automatic guns having a double feed mechanism

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR954476A (enrdf_load_stackoverflow) * 1950-01-03
NL6617800A (enrdf_load_stackoverflow) * 1965-12-23 1967-06-26
US3452640A (en) * 1966-09-29 1969-07-01 Brevets Aero Mecaniques Automatic and semi-automatic guns having a double feed mechanism

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4004489A (en) * 1975-11-03 1977-01-25 The United States Of America As Represented By The Secretary Of The Army Dual selective feed mechanism for automatic weapons
US4223589A (en) * 1977-12-23 1980-09-23 Rheinmetall Gmbh Double-feed sprocket arrangement for munition changing in automatic guns
US10900725B2 (en) * 2016-11-15 2021-01-26 Nexter Systems Belt ammunition feeding device for dual-feed automatic weapon
US11035636B2 (en) 2019-07-26 2021-06-15 Smith & Wesson Inc. Shotgun ammunition feeding system
US11306995B2 (en) 2019-08-06 2022-04-19 Smith & Wesson Inc. Shotgun configuration
US11326845B2 (en) 2019-08-13 2022-05-10 Smith & Wesson Inc. Firearm having reciprocable breech cover
US20220228825A1 (en) * 2019-08-13 2022-07-21 Smith & Wesson Inc. Firearm Having Reciprocable Breech Cover
US11703292B2 (en) * 2019-08-13 2023-07-18 Smith & Wesson Inc. Firearm having reciprocable breech cover
US11022386B2 (en) 2019-08-15 2021-06-01 Smith & Wesson Inc. Firearm breech cover interlock

Also Published As

Publication number Publication date
JPS4826639B1 (enrdf_load_stackoverflow) 1973-08-13
SE357432B (enrdf_load_stackoverflow) 1973-06-25

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