US2797622A - Regulating mechanism to control the feeding of cartridges in belt-fed machine guns - Google Patents

Regulating mechanism to control the feeding of cartridges in belt-fed machine guns Download PDF

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Publication number
US2797622A
US2797622A US319061A US31906152A US2797622A US 2797622 A US2797622 A US 2797622A US 319061 A US319061 A US 319061A US 31906152 A US31906152 A US 31906152A US 2797622 A US2797622 A US 2797622A
Authority
US
United States
Prior art keywords
curved bar
lid
receiver
feeding
cartridges
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
US319061A
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English (en)
Inventor
Saetter-Lassen Erik
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US2797622A publication Critical patent/US2797622A/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
    • F41A9/32—Reciprocating-slide-type belt transporters

Definitions

  • the curved bar By having the curved bar pivoted on the fixed part of the receiver it will be possible to make the lid considerably shorter.
  • the length of the curved bar must at least be equal to the length of the motion of the breechblock between its two extreme positions and the curved bar out of regard to space must be placed behind the parts belonging to the slide mechanism for the cartridge feed, the location of the curved bar in the lid would entail an extension of the latter by almost the full length of the curved bar.
  • This extension which is necessary in the already known constructions and which makes the lid heavy and unhandy and in open condition vulnerable to impacts, as mentioned in the foregoing, may be entirely obviated by the present invention according to which the curved bar is situated to the rear of the hinged lid of the receiver.
  • the lgroove of the curved bar is open to the rear, so that the tappet engaging the groove by a rearward motion may be drawn out of the groove and released from the curved bar.
  • the curved bar will not prevent the breech-block from being pulled to the rear and disengaged from the receiver and the lid need not be opened in order that the breech-block may be pulled out to the rear and reinserted.
  • the parts actuated by the curved bar and mounted on this hinged lid may according 4to the invention be spring-loaded in such a manner that they will tend to assume the position corresponding to the rearmost position of the breech-block.
  • Fig. 5 the curved bar seen from above
  • Fig. 6 the curved bar viewed from its forward end.
  • the receiver of the gun is designated 1, whereas 2 designates the lid hinged to it with latch 3.
  • two cartridge'feed slides 4 and 5 are mounted, shiftable in transverse direction and each connected by a link to the respective ends of a pivoted operating lever 6 by the reciprocating movements of which the Vtwo slides are moved in opposite directions.
  • a tappet 7 is mounted, engaging the bifurcated end of an intermediate lever 8 which is likewise pivoted in the lid and the other end of which is also bifurcated and situated just inside the rear end of the lid 2.
  • the lid further holds a plate-shaped, springloaded tumbler 9 turnably mounted on an axle 10 and by means of a ⁇ Spring pressed downwards to hold in place the cartridges successively feed into the gun.
  • the axle 10 is at its ends carried through bearing holes in flanges 11 of the lid and is immediately outside one flange provided with a shoulder 12.
  • the plate of the tumbler is bent around the axle 10 and does not fill the entire space between the two anges 11, a compression spring 13 being inserted between the edge of the tumbler and one of the flanges 11 on the axle 10, so that the tumbler and, by means of the shoulder 12, also the axle are pushed as far as possible over against the opposite flange 11.
  • the tumbler 9 and the axle 10 in such a way as to compress the spring 13, the axle may be released first from one and then from the other flange 11 and together with the tumbler 9 be removed from the gun.
  • the breech-block 14 may reciprocate.
  • the breech-block is at its rear end provided with an upward tappet 15 projecting upwards through a longitudinal slit in the receiver and into the downward groove of a curved bar 16 pivoted in the top of the receiver.
  • This curved bar is shown in detail in Figs. 3-6 and consists of a trough-shaped, flanged strip or plate 17, the side flanges 18 of which form the groove 19 which is carried through a block 20, forming a pivothead which is fastened to the extended bottom of the trough, the plate strip being joggled at this place to give room for the metal of the pivot-head 20 in the way of 3 the groove.
  • the pivot-head forms the rearmost end of the curved bar.
  • the plate strip 17 has a laterally projecting web 21 troughshaped in the opposite direction and serving partly to prevent the curved bar in its swinging movements from fouling the edges of the slits in the receiver and partly by impinging against a fixed stop, not shown, to limit the lateral swing of the curved bar.
  • a tappet 22 is provided, supported by a mounting 23 and encased by a turnable roller 24.
  • the insertion of the intermediate lever 8 in the connecting mechanism between the curved bar and the operating lever serves, inter alia, to make possible the rearward placing of the curved bar, so that after the opening of the lid it will not project so far forward over the cartridge seat, etc. as to cause trouble.
  • the intermediate lever may magnify the motion by transmission of the oscillating movements of the curved bar to the operating lever.
  • a spring 25 is mounted on the lid and actuates the intermediate lever tending to carry it to the side corresponding to the rearmost position of the breech-block.
  • a cover-plate 26 is fitted to the receiver, which cover-plate at the same time forms a rest for the rearmost end of the lid.
  • Regulating mechanism to control the feeding of cartridges in belt-fed machine guns having a receiver and a reciprocating breech-bolt, said mechanism including a lid hinged to said receiver, two feeding slides laterally CII slidable mounted in said lid, means cooperating with said slides to make them move reciprocally in opposite directions to each other, said means comprising a curved bar and a swingable lever, said lever being mounted in said lid and which lever, when the lid is closed, is operatively coupled to one end of said bar, said bar being laterally swingable and having the other end thereof pivoted to said receiver, said curved bar also having at its underside a correspondingly curved groove, and an upward tappet on said reciprocating breech-bolt engaging said groove, said tappet during the reciprocating movement of the breech-bolt sliding along said groove, thereby causing said curved bar to oscillate and to activate said swingable lever operatively coupled to the end of said bar.
  • Mechanism according to claim l wherein said curved bar, at its pivoted end, is provided with a pivot head crossed by the groove on the underside of said bar and a suitable bearing on the receiver mounting said head, said pivot head and bearing being situated at such a level relatively to the operative parts of said bar that the lateral forces exerted on said bar during its operation are substantially situated in one horizontal plane, in order to avoid 'transverse tilting action on said bar.
  • Mechanism according to claim l wherein said curved bar is situated to the rear of said lid and is at its front end operatively coupled to said swingable lever.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Superstructure Of Vehicle (AREA)
  • Building Environments (AREA)
US319061A 1951-11-17 1952-11-06 Regulating mechanism to control the feeding of cartridges in belt-fed machine guns Expired - Lifetime US2797622A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK313191X 1951-11-17

Publications (1)

Publication Number Publication Date
US2797622A true US2797622A (en) 1957-07-02

Family

ID=8150490

Family Applications (1)

Application Number Title Priority Date Filing Date
US319061A Expired - Lifetime US2797622A (en) 1951-11-17 1952-11-06 Regulating mechanism to control the feeding of cartridges in belt-fed machine guns

Country Status (7)

Country Link
US (1) US2797622A (nl)
BE (1) BE515574A (nl)
CH (1) CH313191A (nl)
DE (1) DE915910C (nl)
FR (1) FR1066513A (nl)
GB (1) GB706166A (nl)
NL (2) NL173829B (nl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3386336A (en) * 1966-03-30 1968-06-04 Colt S Inc Convertible machine gun for rightand left-hand cartridge feed and operation

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3370682D1 (en) * 1982-09-03 1987-05-07 Oerlikon Buehrle Ag Ammunition feeder for an automatic firearm
DE4345589B4 (de) * 1993-10-08 2007-02-01 Heckler & Koch Gmbh Selbstlade-Granatwerfer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR897534A (fr) * 1939-11-06 1945-03-23 Johannes Grossfuss Metall Und Mode d'apport de la bande à des mitrailleuses
GB678000A (en) * 1948-06-19 1952-08-27 Brevets Aero Mecaniques Improvements in cartridge belt feed mechanism for automatic and semi-automatic guns

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE712136C (de) * 1939-03-10 1941-10-13 Rheinmetall Borsig Akt Ges Patronenzufuehrung fuer selbsttaetige Feuerwaffen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR897534A (fr) * 1939-11-06 1945-03-23 Johannes Grossfuss Metall Und Mode d'apport de la bande à des mitrailleuses
GB678000A (en) * 1948-06-19 1952-08-27 Brevets Aero Mecaniques Improvements in cartridge belt feed mechanism for automatic and semi-automatic guns

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3386336A (en) * 1966-03-30 1968-06-04 Colt S Inc Convertible machine gun for rightand left-hand cartridge feed and operation

Also Published As

Publication number Publication date
NL173829B (nl)
NL92845C (nl)
CH313191A (de) 1956-03-31
BE515574A (nl)
DE915910C (de) 1954-07-29
FR1066513A (fr) 1954-06-08
GB706166A (en) 1954-03-24

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