US3753307A - Cartridge extracting arrangement for use with firearms - Google Patents

Cartridge extracting arrangement for use with firearms Download PDF

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Publication number
US3753307A
US3753307A US00192548A US3753307DA US3753307A US 3753307 A US3753307 A US 3753307A US 00192548 A US00192548 A US 00192548A US 3753307D A US3753307D A US 3753307DA US 3753307 A US3753307 A US 3753307A
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US
United States
Prior art keywords
breech
cartridge
plunger
barrel
engaging means
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
US00192548A
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English (en)
Inventor
H Usel
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Individual
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Individual
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Publication of US3753307A publication Critical patent/US3753307A/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • F41A15/00—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun
    • F41A15/04—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun specially adapted for cartridge cases being deformed when fired, e.g. of plastics
    • 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
    • F41A15/00—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun
    • F41A15/02—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for revolver-type guns, e.g. revolvers
    • 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
    • F41A15/00—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun
    • F41A15/12—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for bolt-action guns
    • F41A15/14—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for bolt-action guns the ejector being mounted on or within the bolt; Extractors per se
    • 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
    • F41A15/00—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun
    • F41A15/20—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun specially adapted for caseless-ammunition duds

Definitions

  • Second engaging means is provided on said breech plunger and projects forwardly thereof.
  • the second engaging means is adapted to engage with the first engaging means on the peripheral surface of the projectile. In this way, when the engaging means are engaged the projectile can be extracted in rearward direction from the barrel by rearward movement of the breech plunger.
  • the present invention relates to fireanns using ammunition, particularly in theform of cartridges.
  • Ammunition cartridges are often comprised of a forward projectile portion intended to be shot from the firearm and an explosive charge provided at the rear of the projectile portion.
  • the explosive charge is furthermore often surrounded with a casing which, after firing of the firearm, is left behind in the breech of such firearm to be subsequently removed. Often, however, such explosive charge is not provided with a casing.
  • the firearm includes a tubular barrel having at its rear end a substantially cylindrical breech portion.
  • a cartridge is arranged within the barrel and reaches with its rear end into the breech portion thereof.
  • the peripheral surface of the cartridge is provided with first engaging means to facilitate extraction, and the breech plunger located rearwardly of the cartridge is provided with second engaging means.
  • the second engaging means in engagement with the first engaging means, is used to draw the cartridge rearwardly back from the barrel to a location within the firearm from which it can be conveniently ejected out of the firearm.
  • the second engaging means may be in very simple and expeditious manner configurated as a hook-shaped member provided on a forward portion of the breech plunger means and adapted to appropriately engage with the first engaging means.
  • the first engaging means may be provided in the form of a simple recess in the peripheral surface of the cartridge.
  • the recess extends about the entire circumferential periphery of the cartridge, so that when the cartridge is inserted into the firearm, it is not necessary to 2 provide special means, and take special care, that the cartridge be so positioned as to place the first and second engaging means in rotational alignment, so that they can be engaged.
  • the second engaging means is provided on the breech plunger forwardly of an intermediate shell section extending forwardly of the plunger.
  • the shell section includes two cylindrical surfaces of different diameter and with different centers. Various combinations of such diameters and centers result in difierent constructional possibilities, as will be explained more fully below.
  • the plunger moves in a bore having the configuration of a right cylinder, it is possible to design the intermediate shell section so that its outer cylindrical surface is of diameter equal to the diameter of the plunger and bore and concentric therewith, so that it appears to constitute a smooth extension thereof.
  • the intermediate shell section it is possible to design the intermediate shell section so that it is of different diameter and eccentric from the axis of the bore, especially for accommodating cartridges of particular configuration, as will be explained below.
  • FIG. 1 is a longitudinal section through the barrel of the firearm, showing the loaded cartridge in firing position;
  • FIG. 2 is a view of the plunger alone as seen from the front in axial direction thereof;
  • FIG. 3 is a view showing the relationship between cartridge and plunger when the first and second engaging means are in engagement
  • FIG. 4 is a view of the firearm barrel as seen in aimed direction, with the cartridge and plunger removed;
  • FIG. 5 is a view similar to FIG. 3, but illustrating a second embodiment of the invention.
  • FIG. 6 is a view similar to FIG. 2 but illustrating the embodiment of FIG. 5;
  • FIG. 7 is a view similar to FIG. 4 but illustrating the embodiment of FIGS. 5 and 6-.
  • FIG. 1 there is illustrated the barrel 1 of a firearm.
  • a cartridge which has a forward projectile portion 10 and a rearward explosive charge portion 11.
  • the forward or conically tapering portion thereof is positioned within a forward portion of the barrel 1, that an intermediate portion of the cartridge is positioned within a firing chamber portion 4 of the barrel 1, and that the rearward or explosive charge portion 11 of the cartridge is equal in diameter to the cartridge portion accommodated within firing chamber 4.
  • breech plunger 5 movable in plunger chamber 2 and provided at its forward portion with a projecting shell section 6.
  • a hookshaped member or portion 7 At the forward portion of the shell section 6 there is seen to be provided a hookshaped member or portion 7. The hook-shaped member 7 is shown in engagement with a corresponding recess portion 12 provided on the peripheral surface of the cartridge, intermediate the charge portions thereof.
  • the breech plunger 5 is of substantially cylindrical shape and has provided within it a substantially cylindrical electrode 8.
  • An insulating shell 9 of insulating material prevents electrical communication between plunger 5 and electrode 8.
  • FIG. 2 shows the plunger alone as seen from the front in axial direction. From this Figure, and from FIG. 3, it can be seen that the outer cylindrical surface 13 of the shell section 6 is provided as a continuation of the cylindrical surface of the plunger, i.e., equal in diameter thereto and concentric therewith.
  • the inner cylindrical surface 14 of the shell section 6, however, is seen to have a diameter which is smaller than the diameter of the plunger 5 and eccentric therefrom. It is to be noted from FIG. 1 that the inner cylindrical surface 14, while eccentric from plunger 5, is concentric with firing chamber 4 and the forward portions of barrel 1. It should be clearly understood that this embodiment is accordingly intended for use with cartridges whose projectile and explosive charge portions are of equal diameter.
  • plunger chamber 2 and barrel 1 are of different diameters and eccentric, they nevertheless are arranged tangentially in a region diametrally opposite the hook-shaped member 7, in the position thereof illustrated; this is most clearly shown in FIG. 4.
  • FIGS. 1-4 are advantageous in the effective sealing of the breech by member 7, shell section 6, and plunger 5.
  • a consideration of these four Figures will indicate that there does exist a certain amount of dead space about the cartridge, in the region of its explosive charge.
  • This dead space results from the fact that the shell section 6 and member 7 cannot surround the cartridge with an angular span of more than 180; clearly, the dead space exists in the remaining angular portion around the cartridge, at the bottom region thereof, as illustrated.
  • the dead space has the effect of somewhat reducing the initial pressure developed upon firing. However, this may projectile and explosive in fact be advantageous, such as for example when an explosive charge is employed which causes very high initial speeds of the projectile.
  • FIGS. 1-4 will of course result in a certain increase in the force with which the plunger is pushed rearwardly when the cartridge is fired.
  • the plunger is simply withdrawn rearwardly, the cartridge being moved with it to a rearward location at which the cartridge can be ejected from the firearm by any of various spring and lever mechanisms known, or any other arrangement desired.
  • FIGS. 5-7 A second embodiment of the invention is illustrated in FIGS. 5-7.
  • FIG. 6 shows clearly that the shell section 6' with member 7 provided thereon extending through the plunger chamber 2' does not have an outer cylindrical surface designed as a smooth continuation of the cylindrical surface of plunger 5. Instead, the outer cylindrical surface 13 of shell section 6' is seen to be of lesser diameter than plunger 5 and eccentric therefrom.
  • the inner cylindrical surface 141' of shell section 6, however, does have a diameter equal to and is concentric with plunger 5. This construction is provided specifically to eliminate the dead space occurring in the first embodiment disclosed. It can be deduced from FIG. 6, and is clearly shown in FIG. 5, that the rear circular surface of the illustrated cartridge and the front circular surface of the plunger 5 are substantially identical, thereby eliminating the somewhat excessive surface presented to explosive forces by the plunger of FIG. 1.
  • a tubular barrel having at its rear end a substantially cylindrical breech portion; a caseless cartridge arranged within said barrel reaching with its rear end into said breech portion and having a peripheral surface provided with a recess forming first engaging means; a breech plunger located behind said cartridge in said breech portion and having an axis eccentrically arranged to the axis of said barrel, and a projection of arcuate cross section projecting forwardly from said breech plunger and having at its front end a hook-shaped portion forming second engaging means adapted to engage with said first engaging means during forward movement of said breech plunger and for retracting said cartridge in the rearward direction during rearward movement of said plunger.
  • said projection has an outer cylindrical surface of a diameter equal to the diameter of said breech portion and concentric therewith, and an inner cylindrical surface coaxial with the axis of said barrel.
  • said projection has an outer cylindrical surface of a diameter less than the diameter of said breech portion and eccentric therefrom, and aninner cylindrical surface of a diameter less than the breech portion diameter and concentric therewith.
  • said cartridge having an explosive charge mounted at its rear, said explosive charge forming between itself and the remainder of said cartridge said recess serving as said first engaging means.
  • said hookshaped portion having an arc-shaped cross-section.
  • tubular space within said tubular barrel and said substantially cylindrical breech portion are eccentric and wherein said space within said barrel has a smaller diameter than said breech portion.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
US00192548A 1970-10-28 1971-10-26 Cartridge extracting arrangement for use with firearms Expired - Lifetime US3753307A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT967770A AT317726B (de) 1970-10-28 1970-10-28 Auszieher für hülsenlose Munition

Publications (1)

Publication Number Publication Date
US3753307A true US3753307A (en) 1973-08-21

Family

ID=3616292

Family Applications (1)

Application Number Title Priority Date Filing Date
US00192548A Expired - Lifetime US3753307A (en) 1970-10-28 1971-10-26 Cartridge extracting arrangement for use with firearms

Country Status (15)

Country Link
US (1) US3753307A (nl)
JP (1) JPS571759B1 (nl)
AT (1) AT317726B (nl)
AU (1) AU461839B2 (nl)
BE (1) BE774502A (nl)
CA (1) CA942548A (nl)
CH (1) CH546941A (nl)
DE (1) DE2152181C2 (nl)
DK (1) DK137475B (nl)
ES (1) ES203626Y (nl)
FR (1) FR2111610A5 (nl)
GB (1) GB1335118A (nl)
LU (1) LU64157A1 (nl)
NL (1) NL173209C (nl)
SE (1) SE407283B (nl)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5197304A (en) * 1991-05-14 1993-03-30 Karetnikov Evgeny V Device for treatment of textile materials
US7380362B2 (en) * 2004-12-22 2008-06-03 Smith & Wesson Corp. Firearm extractor mechanism
US10782107B1 (en) * 2016-05-11 2020-09-22 The United States Of America As Represented By The Secretary Of The Army Lightweight cartridge case and weapon system
US20220113122A1 (en) * 2017-05-15 2022-04-14 Georgii Georgiiovych Makarov Caseless ammunition for firearm and the mechanism for the extraction of caseless ammunition

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1154249B (it) * 1980-07-08 1987-01-21 Bruno Civolani Estrattore per armi da fuoco di qualsiasi tipo che utilizzano proietti ad autopropulsione senza bossolo aventi innesco perimetrale
ES2073763T3 (es) * 1990-07-19 1995-08-16 Pse Prod & Systementwicklung Dispositivo en armas de fuego portatiles para obturar una recamara para un cartucho.
ATA157690A (de) * 1990-07-27 1997-07-15 Pse Prod & Systementwicklung Handfeuerwaffe
DE4208416A1 (de) * 1992-03-16 1993-09-23 Mayer Grammelspach Dianawerk Gasdruckwaffe
EP0736740B1 (de) * 1995-04-04 2001-08-29 Oerlikon Contraves Ag Positionieren von Munition
DE102013003555A1 (de) * 2013-03-01 2014-09-04 Bundesrepublik Deutschland, vertreten durch das Bundesministerium der Verteidigung, vertreten durch das Bundesamt für Ausrüstung, Informationstechnik und Nutzung der Bundeswehr Treibladungsauszieher

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2984924A (en) * 1959-11-24 1961-05-23 Frederick P Reed Extractor assembly for firearms
US3144727A (en) * 1956-01-31 1964-08-18 Olin Mathieson Extractor and deformable plastic cartridge
US3609904A (en) * 1969-05-07 1971-10-05 Remington Arms Co Inc Extractable plastic cartridge
US3641692A (en) * 1970-05-19 1972-02-15 Us Army Extractor and bolt mechanism for firearm firing caseless ammunition

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE453658C (de) * 1925-04-20 1927-12-15 Joseph Destree Feuerwaffe mit festem Lauf und unverriegeltem Verschlussstueck
BE407745A (nl) * 1935-02-07

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3144727A (en) * 1956-01-31 1964-08-18 Olin Mathieson Extractor and deformable plastic cartridge
US2984924A (en) * 1959-11-24 1961-05-23 Frederick P Reed Extractor assembly for firearms
US3609904A (en) * 1969-05-07 1971-10-05 Remington Arms Co Inc Extractable plastic cartridge
US3641692A (en) * 1970-05-19 1972-02-15 Us Army Extractor and bolt mechanism for firearm firing caseless ammunition

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5197304A (en) * 1991-05-14 1993-03-30 Karetnikov Evgeny V Device for treatment of textile materials
US7380362B2 (en) * 2004-12-22 2008-06-03 Smith & Wesson Corp. Firearm extractor mechanism
US10782107B1 (en) * 2016-05-11 2020-09-22 The United States Of America As Represented By The Secretary Of The Army Lightweight cartridge case and weapon system
US20220113122A1 (en) * 2017-05-15 2022-04-14 Georgii Georgiiovych Makarov Caseless ammunition for firearm and the mechanism for the extraction of caseless ammunition
US11629941B2 (en) * 2017-05-15 2023-04-18 Georgii Georgiiovych Makarov Caseless ammunition for firearm and the mechanism for the extraction of caseless ammunition

Also Published As

Publication number Publication date
GB1335118A (en) 1973-10-24
NL173209B (nl) 1983-07-18
CA942548A (en) 1974-02-26
NL173209C (nl) 1983-12-16
JPS571759B1 (nl) 1982-01-12
DE2152181C2 (de) 1983-02-10
ES203626Y (es) 1976-04-16
SE407283B (sv) 1979-03-19
NL7114719A (nl) 1972-05-03
AU461839B2 (en) 1975-06-05
DE2152181A1 (de) 1972-05-10
DK137475B (da) 1978-03-06
AT317726B (de) 1974-09-10
CH546941A (de) 1974-03-15
FR2111610A5 (nl) 1972-06-02
ES203626U (es) 1976-01-01
AU3500171A (en) 1973-05-03
LU64157A1 (nl) 1972-05-12
DK137475C (nl) 1978-08-07
BE774502A (fr) 1972-02-14

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