US2199871A - Automatic firearm - Google Patents

Automatic firearm Download PDF

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Publication number
US2199871A
US2199871A US202546A US20254638A US2199871A US 2199871 A US2199871 A US 2199871A US 202546 A US202546 A US 202546A US 20254638 A US20254638 A US 20254638A US 2199871 A US2199871 A US 2199871A
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US
United States
Prior art keywords
breech
breech block
block
bars
firing
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
US202546A
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English (en)
Inventor
Birkigt Marc
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
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Publication of US2199871A publication Critical patent/US2199871A/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
    • F41A3/00—Breech mechanisms, e.g. locks
    • F41A3/64—Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings
    • F41A3/78—Bolt buffer or recuperator means
    • F41A3/82—Coil spring buffers
    • 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
    • F41A17/00—Safety arrangements, e.g. safeties
    • F41A17/64—Firing-pin safeties, i.e. means for preventing movement of slidably- mounted strikers
    • F41A17/66—Firing-pin safeties, i.e. means for preventing movement of slidably- mounted strikers automatically operated, i.e. operated by breech opening or closing movement
    • 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
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
    • F41A19/25—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins
    • F41A19/27—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block
    • F41A19/29—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension
    • F41A19/30—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension in bolt-action guns
    • 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
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
    • F41A19/25—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins
    • F41A19/27—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block
    • F41A19/29—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension
    • F41A19/30—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension in bolt-action guns
    • F41A19/31—Sear arrangements therefor
    • 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
    • F41A3/00—Breech mechanisms, e.g. locks
    • F41A3/12—Bolt action, i.e. the main breech opening movement being parallel to the barrel axis
    • F41A3/36—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing
    • F41A3/38—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing having rocking locking elements, e.g. pivoting levers or vanes
    • F41A3/40—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing having rocking locking elements, e.g. pivoting levers or vanes mounted on the bolt
    • 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
    • F41A5/00—Mechanisms or systems operated by propellant charge energy for automatically opening the lock
    • F41A5/18—Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated

Definitions

  • My invention is concerned with guns of this type having a breech structure movable axially with respect to the gun tube and constituted by two elements movable axially with respect to each other, one of these elements constituting the breech block proper and the other carrying the ring pin.
  • the object of the present invention is to provide a gun of this type which is better adapted to meet the requirements of practice and, in particular, in which the firing safety is considerably increased so as to eliminate any possibility of accident.
  • the essential feature of the present invention consists in interposing between the two above mentioned elements of the movable breech structure, elastic means for urging the firing pin carrier toward the front of the firearm, with respect to the breech block proper.
  • Fig. 2 is a similar view of the same breech mechanism, showing other relative positions of the parts, corresponding to another time of the operation of said mechanism;
  • Fig. 3 is a sectional view on the line III-III of Fig. 1;
  • Fig. 4 is a Vertical seca: nal view on the line IV-IV 0f Fig. l;
  • Fig. 5 is a. partial vertical section on the line V-V of Fig. 1.
  • the rear part of the barrel or tube I of the gun carries, xed thereto, a breech 5 casing 2.
  • This breech casing is provided with a cartridge feeding slot 3 at the top and another slot 4 at the bottom, for the ejection of the cartridge cases having been red.
  • breech block proper constitutes the front end of said breech block.
  • the front end of said breech block is adapted to force and wedge the cartridges successively into the chamber of the 20 gun tube, in the usual manner.
  • the other breech element constitutes the firing pin carrier. Specifically, as shown by the drawing, it is constituted by two bars 9 located each on one side of the breech block 6, said bars being g5 interconnected, preferably at their front parts, by a cross piece I0, which carries the firing pin ll ⁇ .A
  • 'Ihe breech block E carries locking means, constituted, in the example that is considered, by a 3g pawl l pivoted at its front part to said breech block and adapted to occupy either of two diierent positions, to wit an upper position (Fig. 2) and a lower position (Fig. 1).
  • locking pawl 1 When locking pawl 1 is in its lower position 35 it locks the breech block 6 (in the front or firing position thereof) to the breech casing 2.
  • the top projection of the free end of pawl 1 is, in the lower position, disengaged from the recess of part 9 which terminates at 8, and therefore per- 40 mits said part 9 to slide along the breech block 6 in the frontward direction, under the eiect of the counter-spring 5 which bears against cross piece I 0 associated with bars 9.
  • 45 the firing pin Il carried by piece I0 strikes the cartridge.
  • I provide, in bars 9, slots 9 adapted to accommodate lugs I6 rigid with the breech block 6, so that said lugs can move in said slots in the course of the relative axial .displacements of said breech block and said bars.
  • Ihe springs I1 above mentioned are mounted in said slots, being constituted by coil springs the front ends of which bear against the front ends of said slots, that is to say upon the respective bars 9, while the rear ends of said springs I1 bear againstsaid lugs I6.
  • I'his spring arrange- S-I 0 with respect to the breech block 6.
  • An automatic firearm which comprises, in combination, a tube, a breechstructure movable with a longitudinal reciprocating motion in line with said tube at the rear thereof, a stationary casing rigid with said tube for guiding said breech said breech block at the end of the frontward.
  • An automatic rearm which comprises, in combination, a tube, a breech structure movable with a reciprocating motion in line with said tube at the rear thereof, a stationary casing rigid with said tube for guiding said breech structure, said breech structure including a breech block proper and a firing pin carrier movable longitudinally to a limited extent with respect to said breech block, cooperating means, provided on said breech structure elements and said breech casing and operative by relative displacements of said elements, for interlocking the two breech structure elements as long as said breech block has not reached its extreme position toward the front and locking said breech block in said casing when said position is reached while uncouplingsaid firing pin carrier from said breech block, whereby said firing pin carrier can further move frontwardly, said last mentioned means being adapted to have their action reversed for inverse movements ofthe breech elements, means for driving back said firing pin carrier upon the firing of a shot, and spring means between said breech block proper and iiring pin
  • An automatic rearm which comprises, in combination, a tube, a breech structure movable with a reciprocating motion in line with said tube at the rear thereof, a stationary casing rigid with said tube for guiding said breech structure, said breech structure including a breech block proper and a firing pin carrier movable longitudinally to a limited extent with respect to said breech block, a pawl carried vby'.
  • said breech block and notches ⁇ with inclined edges provided on said firing pin carrier and said breech casing adapted to cooperate successively with said pawl under the eiiect of relative movements of said breech structure in said casing for interlocking the breech block proper -and the firing pin carrier as long as said breech block has not reached its extreme position toward the front and locking said breech block in said casing when said position is reached while simultaneously uncoupling said firing 4pin carrier and said breech block, whereby said ring pin carrier can further move frontwardly when said breech block is stopped, said pawl and notches being adapted to have their respective actions reversed when the movements Yof the breech block proper-and iiring pin carrier are reversed, means for driving back said ilring pin carrier upon the ring of a shot, and spring means interposed between said breech block and said iiring pin carrier for constantly urging said firing pin carrier frontwardly with respect to said breech block.
  • An automatic rearm which comprises, in combination, a tube, a breech structure movable ⁇ with a reciprocating motion in line with said tube at the rear thereof, a stationary casing rigid with said tube for guiding said breech structure.
  • said breech structure including a breech block proper provided with a longitudinally elongated transverse slot, two longitudinal bars slidable on either side of said breech block in the longitudinal direction, a transverse member carrying a ring pin and rigidly interconnecting said two bars extending through said slot, whereby the whole of said bars and said transverse member can slide longitudinally to a limited extent with respect to said breech block, cooperating means provided on said breech block proper, said bars and said breech casing and operative by relative displacements of said breech block proper, bars and breech casing, for interlocking said breech block and said bars as long as said breech block has not reached its extreme position toward the 'front and locking said breech.
  • said last mentioned means being adapted to have said actions reversed for reversed directions of movement of said breech block proper and bars, means for driving back said bars and said transverse member upon the rlng of a shot, a counterspring for urging said bars and transverse member frontwardly, said bars being provided with longitudinal slots, lugs canied by said breech block engaging in said last mentioned slots respectively, and Asprings housed in said slots between the front ends of said slots and said lugs respectively for constantly urging said bars frontwardly with respect to saidbreech block.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Portable Nailing Machines And Staplers (AREA)
US202546A 1938-02-11 1938-04-16 Automatic firearm Expired - Lifetime US2199871A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE210216X 1938-02-11

Publications (1)

Publication Number Publication Date
US2199871A true US2199871A (en) 1940-05-07

Family

ID=3865926

Family Applications (1)

Application Number Title Priority Date Filing Date
US202546A Expired - Lifetime US2199871A (en) 1938-02-11 1938-04-16 Automatic firearm

Country Status (6)

Country Link
US (1) US2199871A (nl)
BE (1) BE426319A (nl)
CH (1) CH210216A (nl)
DE (1) DE679804C (nl)
FR (1) FR850191A (nl)
GB (1) GB515247A (nl)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2494889A (en) * 1947-03-08 1950-01-17 Brevets Aero Mecaniques Gas piston operated firearm
US2501069A (en) * 1946-01-16 1950-03-21 Brev Aero Mecaniques S A Soc Gas piston operated breechblock lock
US2522628A (en) * 1945-07-14 1950-09-19 Brev Aero Mecaniques S A Soc Pivoted breech bolt lock
US2594354A (en) * 1945-12-11 1952-04-29 Douglas V Schnepel Transverse sliding breech bolt lock

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2522628A (en) * 1945-07-14 1950-09-19 Brev Aero Mecaniques S A Soc Pivoted breech bolt lock
US2594354A (en) * 1945-12-11 1952-04-29 Douglas V Schnepel Transverse sliding breech bolt lock
US2501069A (en) * 1946-01-16 1950-03-21 Brev Aero Mecaniques S A Soc Gas piston operated breechblock lock
US2494889A (en) * 1947-03-08 1950-01-17 Brevets Aero Mecaniques Gas piston operated firearm

Also Published As

Publication number Publication date
DE679804C (de) 1939-08-16
BE426319A (nl)
GB515247A (en) 1939-11-30
FR850191A (fr) 1939-12-09
CH210216A (fr) 1940-06-30

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