US2724997A - Loading tray arrangement for a recoiling automatic firearm - Google Patents

Loading tray arrangement for a recoiling automatic firearm Download PDF

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Publication number
US2724997A
US2724997A US223243A US22324351A US2724997A US 2724997 A US2724997 A US 2724997A US 223243 A US223243 A US 223243A US 22324351 A US22324351 A US 22324351A US 2724997 A US2724997 A US 2724997A
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US
United States
Prior art keywords
loading tray
gun
lever
tray
recoil
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
US223243A
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English (en)
Inventor
Carlsson Arent Gustav
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.)
Saab Bofors AB
Original Assignee
Bofors AB
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 Bofors AB filed Critical Bofors AB
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Publication of US2724997A publication Critical patent/US2724997A/en
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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
    • F41A9/01—Feeding of unbelted ammunition
    • F41A9/06—Feeding of unbelted ammunition using cyclically moving conveyors, i.e. conveyors having ammunition pusher or carrier elements which are emptied or disengaged from the ammunition during the return stroke
    • F41A9/09—Movable ammunition carriers or loading trays, e.g. for feeding from magazines
    • F41A9/10—Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging
    • F41A9/13—Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging in a vertical plane
    • F41A9/16—Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging in a vertical plane which is parallel to the barrel axis
    • 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
    • F41A9/56—Movable guiding means

Definitions

  • This invention relates to automatic firearms including a recoil mechanism, and more particularly to the arrangement of the loading tray for firearms of this type.
  • the tray comprises two parts, one fixedly secured to the housing of the'firearm mechanism and the other to the recoil mechanism proper.
  • the latter part of the tray includes a revolving member which in a certain position serves as a guide for an empty shell casing being thrown out. While such an arrangement operates rather satisfactorily, it is generally desirable to avoid any fixed connection between a part of the loading tray and the recoil system.
  • one of the principal objects of the present invention is to provide a loading tray arangement for firearms of the general type, above referred to, which is capable of guiding an empty shell casing without having a part fixedly secured to the recoil mechanism.
  • the arrangement according to the invention is particularly suitable for firearms, the ammunition magazine of which is disposed directly above the loading tray.
  • Another object of the invention is to provide a novel and improved loading tray arrangement in which the loading tray is pivotally mounted so that it serves in one position to guide an empty shell casing to be thrown out from the gun and in another position as a guide for a new round of shells to be fed to the gun.
  • Fig. .l is a-fragmentary perspective view of an automatic gun equipped with a loading tray arrangement according to the invention.
  • Figs. 2 to inclusive are side views, partially in section, of the control and actuating mechanism for the loading tray in different positions, and
  • Figs. 6 to are diagrammatic views of an automatic gun with ammunition magazine and loading tray in difierent positions of the recoil mechanism of the gun.
  • Fig. 1 shows the parts of the gun proper and of the recoil mechansm to the'extent it is essential for the understanding of the invention.
  • the housing or casing 1 of the gun mechanism and part of a breech ring 2.
  • An elongated member 3 in form of a rail having a curved guide groove 4 therein is secured to breech ring 2 for movement of rail 3 in unison with the recoil mechanism of the gun.
  • the loading tray of the gun is designated by 23 and pivotally mounted on casing 1 by means of a pivot pin 35.
  • the pivot point 35 is disposed substantially on a curve laid through a magazine clip 36.
  • the control mechanism for the loading tray comprises two levers 7 and 11 both pivotal about a pivot pin 8 supported in a bracket 9 secured to casing 1. Bracket 9 is provided with a lateral extension 10 the purpose of which will be more fully explained hereinafter.
  • the lever 7 supports a roller 5 by means of a post 6. This roller engages groove or slot 4 so that the pivotal position of lever 7 is guided by groove 4 or more specifically by the recoil movement of the gun.
  • Lever 7 is releasably coupled with lever 11 by an arm 12. This arm is pivotally supported on one end in a slot or recess of lever 7 by mean of a pivot 13.
  • arm 12 ends in an enlarged head 18 which is engageable with a detention notch or shoulder 14 in lever 11, as can best be seen in Fig. 2.
  • arm 12 has a cavity or bore therein slidably housing a piston 15 which 11 is engageable with a shoulder or detention notch 37 in a member 20.
  • This member is shown in form of a sleeve slidably guided in a frame or cage 19 secured to gun casing 1.
  • a compression spring 21 within frame 19 biases sleeve 20 toward and against lever 11.
  • the end of sleeve 20 protruding from frame 19 includes an axial slot 38 in which a roller 39 is supported.
  • a hook-shaped arm 22 extending from loading tray 23 is hooked into slot 38, thereby coupling sleeve 20 and tray 23.
  • the mechanism casing and a jacket are generaly designated by 25.
  • This unit 25 houses a gun barrel 26 which is equipped with a conventional recoil brake 27.
  • the loading frame or clip 36 contains four rounds of shells 30 to 33 inclusive when fully loaded.
  • the bottom side of the upwardly tilted loading tray now serves as a guide for the empty shell case 28 ejected from breech ring 2.
  • extension 10 will push arm 12 out of notch 14 as is shown in Fig. 4.
  • lever 11 receives an additional upward movement until it falls downwardly, partly by the action of the spring 21 and partly by its own weight, lever 11 being no longer coupled to lever 7.
  • Tray 23 returns into the positions shown in Figs. 1 and 8 since the tray is no longer held in its upwardly tilted position by lever 11.
  • a new shell 30 is fed to the loading tray by conventional means, the detailed explanation of which is not essential for the understanding of the invention. .As can best be seen in Fig. 9, the top side of the now horizontal tray serves as a guide for shell 30 during the loading operation.
  • Fig. '10 shows the position of the component parts substantially after completion of the recoil operation.
  • An automatic gun with recoiling and counter-recoilihg gun barrel having a cartridge magazine and a loading tray pivotal relative to the magazine and the gun barrel between a first pivotal position in which the top of the tray forms a support for a shell to be rammed into the gun and a second pivotal osition in which the bottom of the tray forms a discharge guide for an ejected empty shell casing, in combination with tray moving means actuated by a recoil movement of the gun and operatively coupled with the loading tray for controlling the pivotal position thereof by the recoil movement of the gun, the said moving means comprising a first and second lever each pivotally supported on a stationary portion of the gun, releasable linkage means interposed between the said two levers and coupling the same so as to cause the second lever to follow a pivotal movement of the first lever, guide means coasting with the first lever and controlling the-pivotal positions of the coupled levers, the said second lever being operatively coupled with the loading tray for movement of the same
  • linkage means comprise an arm privoted to the first lever and releasably engageable with a detention notch in the second lever for transmitting pivotal movements of the first lever to the second lever.
  • said guide means comprise a member having a curved guide groove therein and secured to a part of the .gun moving during the recoil movement thereof, and wherein a nose extending from the first lever engages said groove for pivoting the said levers in response to the recoil movement.
  • loading spring means bias the loading tray into its first pivotal position.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Portable Nailing Machines And Staplers (AREA)
US223243A 1950-04-28 1951-04-27 Loading tray arrangement for a recoiling automatic firearm Expired - Lifetime US2724997A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE291839X 1950-04-28

Publications (1)

Publication Number Publication Date
US2724997A true US2724997A (en) 1955-11-29

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US223243A Expired - Lifetime US2724997A (en) 1950-04-28 1951-04-27 Loading tray arrangement for a recoiling automatic firearm

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US (1) US2724997A (US08088918-20120103-C00476.png)
BE (1) BE502816A (US08088918-20120103-C00476.png)
CH (1) CH291839A (US08088918-20120103-C00476.png)
DE (1) DE882359C (US08088918-20120103-C00476.png)
FR (1) FR1036263A (US08088918-20120103-C00476.png)
NL (1) NL90584C (US08088918-20120103-C00476.png)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2797382A (en) * 1952-05-02 1957-06-25 North American Aviation Inc Magnetic frequency and voltage control for motor generator
US3322036A (en) * 1964-08-14 1967-05-30 Bofors Ab Round feeding mechanism for an automatic gun

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US644969A (en) * 1899-08-21 1900-03-06 Vickers Sons & Maxim Ltd Automatic gun.
US730801A (en) * 1902-08-30 1903-06-09 Jens Theodor Suhr Schouboe Recoil-firearm.
US1674370A (en) * 1926-01-22 1928-06-19 Schneider & Cie Automatic gun
US2489954A (en) * 1943-08-04 1949-11-29 Burney Charles Dennistoun Recoilless gun with breech closing mechanism
US2588429A (en) * 1947-09-04 1952-03-11 Summerbell Edith May Recoil-controlled ammunition feeding means for guns

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US644969A (en) * 1899-08-21 1900-03-06 Vickers Sons & Maxim Ltd Automatic gun.
US730801A (en) * 1902-08-30 1903-06-09 Jens Theodor Suhr Schouboe Recoil-firearm.
US1674370A (en) * 1926-01-22 1928-06-19 Schneider & Cie Automatic gun
US2489954A (en) * 1943-08-04 1949-11-29 Burney Charles Dennistoun Recoilless gun with breech closing mechanism
US2588429A (en) * 1947-09-04 1952-03-11 Summerbell Edith May Recoil-controlled ammunition feeding means for guns

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2797382A (en) * 1952-05-02 1957-06-25 North American Aviation Inc Magnetic frequency and voltage control for motor generator
US3322036A (en) * 1964-08-14 1967-05-30 Bofors Ab Round feeding mechanism for an automatic gun

Also Published As

Publication number Publication date
FR1036263A (fr) 1953-09-07
DE882359C (de) 1953-07-09
CH291839A (de) 1953-07-15
BE502816A (US08088918-20120103-C00476.png)
NL90584C (US08088918-20120103-C00476.png)

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