US3759136A - Automatic firearm disposed in a gun turret and pivotable in the vertical direction - Google Patents

Automatic firearm disposed in a gun turret and pivotable in the vertical direction Download PDF

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Publication number
US3759136A
US3759136A US00251788A US3759136DA US3759136A US 3759136 A US3759136 A US 3759136A US 00251788 A US00251788 A US 00251788A US 3759136D A US3759136D A US 3759136DA US 3759136 A US3759136 A US 3759136A
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US
United States
Prior art keywords
duct
belt
guide
arrangement according
firearm
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
US00251788A
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English (en)
Inventor
K Fammler
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 Industrie AG
Original Assignee
Rheinmetall GmbH
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 Rheinmetall GmbH filed Critical Rheinmetall GmbH
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Publication of US3759136A publication Critical patent/US3759136A/en
Anticipated expiration legal-status Critical
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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
    • 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
    • F41A9/60—Empty-cartridge-case or belt-link collectors or catchers

Definitions

  • ABSTRACT A discharge duct arrangement for discharging belt links of a disintegrating cartridge belt from a firearm.
  • the discharge duct arrangement is particularly adapted for belt links consisting of a double clip for holding a cartridge, a single clip for connecting the link to the next adjacent cartridge and a bracket connecting the double clip to the single clip.
  • Three guide tracks are arranged in the discharge duct for slidably engaging the respective single clip, double clip and bracket as the links pass through the duct. These guide tracks are positioned such that only two of the tracks engage the belt at any given time and such that the belt link is inclined slightly as it is guided through the duct.
  • Two similar discharge ducts can be arranged mirrorlike in a common rotatable support at opposite sides of a cartridge ejection duct also in the support.
  • the present invention relates to cartridge and cartridge belt discharge arrangements for use with an automatic firearm, particularly an automatic cannon of the type disposed in a gun turret and pivotable in the vertical direction.
  • Ammunition is fed to such firearms in most cases by means of a disintegrating belt via a belt feeder.
  • the empty belt links are discharged through an opening, in most cases rectangular, provided at the belt feeder.
  • a correspondingly rectangular shaped well may adjoin this opening.
  • the belt links occasionally become accumulated and jammed up in the discharge well, which finally results in functional disturbances in the firearm.
  • the arrangement of the present invention is particularly adapted for use with an automatic firearm disposed in a gun turret, expecially in a turret ofa tank or armored car which is pivotable in the vertical direction.
  • the present invention contemplates an ammunition feed constituted by a disintegrating belt and a discharge duct for the belt links, which belt links consist of a single clip or clamp and a double clip joined together by a bracket.
  • This invention contemplates the provision of a guide groove corresponding to the width of the single clip on one longitudinal side of a rectangular crosssectional form discharge duct with a first guide track or guideway in the groove for the ridge or back of the single clip.
  • the invention further contemplates arranging a second, divided guide track in parallel to the first guide track, for the ridges of the double clip, as well as a third track, provided at a spacing from the second guide track in parallel thereto, for the connecting bracket between the single and double clips; and selecting the distances between the guide tracks in such manner that the belt links are guided at an angle to the longitudinal extension of the duct along two of the guide tracks.
  • the arrangement of the three guide tracks is such that at most two of the three tracks will engage the clip at a given time, the particular two tracks in engagement depending on the time the particular angular orientation of the belt link with respect to the longitudinal axis of the duct.
  • This arrangement of the present invention provides a very good and low-friction guidance of the belt links since the belt links contact in each case only with curved points two of the guide tracks; consequently, a snagging or jamming of the ends of the bracket in the duct is eliminated.
  • This secure guidance action effecting a uniform sliding of the belt links, is also maintained when the discharge duct is rotated through and angle, even an angle of 180. Since the duct guidance system can be rotated through any angle, the invention can also be advantageously employed in an automatic firearm with a twin belt feeder by providing two discharge ducts in a mirror-image relationship to each other on opposite sides of the firearm and by mounting these ducts to be rotatable in he turret wall by means of a common support.
  • a channel for the shell case ejection is disposed additionally in the common support.
  • FIG. I is a schematic sectional view through a gun turret with an automatic cannon and a twin belt feeder according to the present invention.
  • FIG. 2 is a perspective view of a belt link of the disintegrating belt used with the present invention.
  • FIG. 3 is a cross-sectional schematic view of a belt link discharge duct according to the present invention.
  • FIG. 4 is a longitudinal schematic view taken from a position perpendicular to FIG. 3.
  • FIGS. 5 and 6 are views similar to FIGS. 3 and i respectively, showing a mirror-image arrangement of the duct according to the present invention.
  • FIG. 7 is a cross-sectional schematic end view of the support for the discharge ducts of the present invention (as viewed in the direction of arrow P shown in FIG. ll
  • Numeral ll denotes the gun turret of a tank, which turret is rotatable about a vertical axis and is shown in a simplified representation.
  • an automatic cannon 33 is disposed to be pivotable in the vertical direction in this gun turret.
  • the firearm is associated with a twin belt feeding mech anism 4 to which the cartridges are fed from ammuni tion magazines, not shown, by means of two cartridge belts 5 consisting of disintegrating belts.
  • the firearm is disposed in the cylindrical mount 2 so that its firing direction is displaced by with respect to he horizontal pivot axis x of the firearm.
  • the cartridge case ejector 6 is disposed in the horizontal pivot axis x of the firearm, and the belt feeder 4 is arranged in the same position.
  • belt link discharge ducts 7 and 7' are connected to the twin belt feeder.
  • These discharge ducts 7, 7' extend in an approximately horizontal direction laterally through the gun turret and are mounted in a common support 8 which is disposed in the turret wall to be rotatable about the axis x.
  • an ejection channel or duct 9 is provided for ejecting the cartridge cases from the firearm.
  • the belt links I'll of the disintegrating belts 5 consist in each case of a single clip Ill and a double clip I2 joined together by a connecting bracket 13.
  • the bracket 13 is centrally disposed along the longitudinal axis of the belt.
  • the discharge ducts 7 and 7' have an essentially rectangular cross-sectional configuration and are formed from an approximately U-shapes rail or bar 14.
  • a fillet 15 is inserted in the open side of this rail.
  • the inside diameter of the duct is somewhat larger than the width of the belt links.
  • a guide groove 16 is provided corresponding to the width of the single clip 11, with a first guide track 17 for the outer curved surface of the single clip 1 l.
  • a second, divided guide track 18 for the outer curved surfaces of the double clip 12 is provided at the fillet in parallel to this guide track 17.
  • a rail 19 with a third guide track 20, which rail extends into the interior of the duct cross-section, is arranged on the side opposite to the fillet.
  • This third guide track 20 is intended for guiding the connecting bracket 13.
  • the spacings between the individual guide tracks are selected so that the belt links are guided along at most two of the guide tracks and at an angle to the longitudinal extension of the duct.
  • the belt link rests, with the rounded surface of the connecting bracket 13, on the guide track 20, and the outer curved surface of the single clip is in contact with the guide track 17, whereas a small play or spacing exists between the curved portion of the double clip 12 and the guide track 18.
  • this play permits the belt link to tilt by a mirror amount, whereby the double clip 12 comes in contact with the guide track 118 with a consequent transfer of the play or spacing to between the single clip 11 and the guide track 17.
  • This mode of guidance wherein the belt link is in each instance guided along two out of three guide tracks, is in each instance guided along two out of three guide tracks, is also realized in the mirror-image arrangement of the discharge duct according to FIGS. and 6. in this case, the ridge or back of the single clip 11 slides along the guide track 17, and the ridges of the double clip 12 slide along the track 18, whereas there is a play between the bracket 13 and the guide track 20.
  • the belt links slide, in the manner described above, in the ducts with an extra ordinarily low amount of friction and without jamming.
  • the belt links are conveyed through the duct, in succession, by the respectively following belt links ejected from the belt feeder. Since they are slightly inclined with respect to the longitudinal axial extent of the ducts, the belt links exhibit curved surfaces for engaging the next adjacent belt links in the duct without jamming.
  • said clips on said belt links have curved inwardly facing surfaces for engaging cartridges, the axes of curvature of said curved surfaces extending substantially perpendicular to the longitudinal axis of said duct when said belt links are passing through said duct, and wherein said first guide means includes a longitudinally extending guide groove in said duct, said guide groove having a width corresponding to the width of said single clip, said guide groove including a first guide track for slidably engaging an outwardly facing surface of said single clip.
  • said second guide means includes a second divided guide track for slidably engaging outwardly facing surfaces of said double clip, said second track extending longitudinally within said duct in parallel relationship to said first track.
  • said third guide means includes a third guide track for slidably engaging the bracket member, said third guide track extending longitudinally within said duct in parallel relationship to said first and second tracks.
  • said third guide track is provided on a rail extending from a second side wall of said duct in the direction of said first and second guide tracks, said second side wall being parallel and opposite to said first side wall.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Structure Of Belt Conveyors (AREA)
  • Toys (AREA)
  • Automatic Tape Cassette Changers (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
US00251788A 1971-05-27 1972-05-09 Automatic firearm disposed in a gun turret and pivotable in the vertical direction Expired - Lifetime US3759136A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2126294A DE2126294C3 (de) 1971-05-27 1971-05-27 Gurtableitkanal mit rechteckiger Querschnittsform

Publications (1)

Publication Number Publication Date
US3759136A true US3759136A (en) 1973-09-18

Family

ID=5809044

Family Applications (1)

Application Number Title Priority Date Filing Date
US00251788A Expired - Lifetime US3759136A (en) 1971-05-27 1972-05-09 Automatic firearm disposed in a gun turret and pivotable in the vertical direction

Country Status (8)

Country Link
US (1) US3759136A (forum.php)
JP (1) JPS5630473B1 (forum.php)
CH (1) CH535931A (forum.php)
DE (1) DE2126294C3 (forum.php)
FR (1) FR2138782B1 (forum.php)
IT (1) IT952485B (forum.php)
NO (1) NO129018B (forum.php)
SE (1) SE395956B (forum.php)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3854377A (en) * 1972-05-20 1974-12-17 Keller & Knappich Augsburg Tank turret for automatic weapons
US4562768A (en) * 1983-03-11 1986-01-07 Rheinmetall Gmbh Alternative ammunition belt feeder for an automatic machine cannon
US4601230A (en) * 1984-12-13 1986-07-22 General Motors Corporation Weapon system
US20160025446A1 (en) * 2014-07-23 2016-01-28 Maruzen Company Limited Cartridge for air gun
CN111994244A (zh) * 2020-09-22 2020-11-27 马鞍山市华奇维亚科技发展有限公司 一种舰船甲板用速展式防护系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0101100B1 (de) * 1982-08-03 1986-08-27 Werkzeugmaschinenfabrik Oerlikon-Bührle AG Gurtglied

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2817999A (en) * 1955-04-22 1957-12-31 English Electric Co Ltd Automatic gun link chutes

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2817999A (en) * 1955-04-22 1957-12-31 English Electric Co Ltd Automatic gun link chutes

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3854377A (en) * 1972-05-20 1974-12-17 Keller & Knappich Augsburg Tank turret for automatic weapons
US4562768A (en) * 1983-03-11 1986-01-07 Rheinmetall Gmbh Alternative ammunition belt feeder for an automatic machine cannon
US4601230A (en) * 1984-12-13 1986-07-22 General Motors Corporation Weapon system
US20160025446A1 (en) * 2014-07-23 2016-01-28 Maruzen Company Limited Cartridge for air gun
US9612081B2 (en) * 2014-07-23 2017-04-04 Maruzen Company Limited Cartridge for air gun
CN111994244A (zh) * 2020-09-22 2020-11-27 马鞍山市华奇维亚科技发展有限公司 一种舰船甲板用速展式防护系统

Also Published As

Publication number Publication date
DE2126294C3 (de) 1978-03-30
DE2126294A1 (de) 1972-12-07
FR2138782B1 (forum.php) 1973-07-13
DE2126294B2 (de) 1977-07-21
CH535931A (de) 1973-04-15
JPS5630473B1 (forum.php) 1981-07-15
NO129018B (forum.php) 1974-02-11
SE395956B (sv) 1977-08-29
IT952485B (it) 1973-07-20
FR2138782A1 (forum.php) 1973-01-05

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