US2331703A - Stopper for the gas cylinders of gas-pressure loaders in firearms - Google Patents

Stopper for the gas cylinders of gas-pressure loaders in firearms Download PDF

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Publication number
US2331703A
US2331703A US286705A US28670539A US2331703A US 2331703 A US2331703 A US 2331703A US 286705 A US286705 A US 286705A US 28670539 A US28670539 A US 28670539A US 2331703 A US2331703 A US 2331703A
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US
United States
Prior art keywords
gas
stopper
barrel
firearms
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
US286705A
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English (en)
Inventor
Koucky Josef
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Individual
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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 US2331703A publication Critical patent/US2331703A/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
    • 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
    • F41A5/26—Arrangements or systems for bleeding the gas from the barrel

Definitions

  • the present invention relates ,to stoppers for the gas cylinders of automatic gas-pressure loadersinfirearms.
  • the known stoppers do not, for the greater part, allow of a rapid. and, especially, an easy opening of the gas cylinderfor the purposeof removing the products of combustion of the gunpowder which are also contained by metallic partse. g., of the barrel-that are fitted in the gas cylinder or in the chamber.
  • the stopper 'of a gas cylinder having screws or the like is also disadvantageous, since the screw-thread is burnt into the gas chamber, so that the screw of the stopper can only be removed by theemployment of tools and, even then, with great difliculty. If a special fitting having a gas-supply passage is arranged on the barrel, into the open end of which it has been customary to inserta gas tube,
  • the gas passage is accessible-only after the gas tube has been removed or pushed out;
  • An independent gas chamber which is connected to the muzzle of the barrel in the manner of a bayonet joint, must likewise first be taken off the barrel, by being rotated about the axis of the connecting passage, in order to render the gas passage accessible; in that case, however, it is necessary first to detach the chamber from the gas cylinder proper which is constructed in such a manner that it can be pushed out.
  • the stopper comprises a cylindrical body adapted to be pushed into the gas cylinder in an axial direction and provided with an actuating member for effecting rotation of the said stopper when pushed into position, means being also provided to come into operation to secure the stopper against axial displacement, and the said actuating member, after its securing movement has been carried out, being secured itself against rotation by means of a removable component of the firearms.
  • the ram-rod for the barrel which ram-rod is mounted in known manner in the'front part of the butt and beneath the barrel.
  • Figure 3 is a cross-sectional view of Figure 2
  • v Figure 4 is a cross-section'taken on the line IV-IV of Figure 1.
  • I denotes the barrel which is rigidly connected, by means of a screw-thread 3, to
  • a gas cylinder 2 in which a piston 4 of the driving mechanism of the breech. device of the firearm moves.
  • the gases pass from the barrel into the cylinder 2 through a passage 5 which opens into the stopper of the gas cylinder.
  • the stopper consistsof a cylindrical part 6 having a recess l forming the gas chamber into which the passage 5 opens, and a bent, elastic actuating member, 8 constituting an arm which passes .partly around the barrel in such a manner that, in the closed position, the lower end thereof extends behind'a ram-rod 9 which is mounted, in known manner, in the lower part of the stock); 1 of the firearm.
  • the lower'part of the stock I0 is,- with an upper part, fixed to the firearm by means of a sleeve 12 having a suspension loop l3Qfor a strap.
  • the stopper 6, when inserted into the gas cylinder, is secured in the axial direction against being pushed unintentionally out of the gas cyl-.
  • inder 2 by means of a device one constructional form of which is illustrated, by way of example, in Figures 1 and 4.
  • the said device consists of two transverse grooves l4 which'are provided on the barrel I and into which projections I5 asso-, ciated With the stopper enter when the actuatwhich the curved actuating member adjoins the The actuating member is formedin stopper.
  • the stopper is secured against axial displacement.
  • the stopper closes the'gas cylinder, whilst, on dismantling, which is necessary, for example, to permit the cleaning of the passage 5 and the removal of the deposited combustion products of the powder, which may be present on the whole stopper both in the gas cylinder-and in the chamber, the pushing out of the stopper and, consequently, the making ofthe gas cylinder accessible, can be readily obtained without dismantling of the firearm to a large extent being necessary.
  • What I claim is: g 1.
  • a stopper comprising accylinlooking said body against axial displacement, an actuating member secured to said body for operating said locking means and a ramrod mounted on said firearm for 'releasably locking said actuating member.
  • a stopper comprising a cylindrical body adapted to be pushed into the gas cylinder inan' axial direction, said barrel having a transverse groove therein, a segment-like projection on said body cooperating with said groove for locking said body against axial displacement, an actuating member for rotating said body and said projection into and out of said groove and a ramrod for releasablylocking said actuating member.
  • a stopper comprising a cylindrical body adapted to be pushed into the gas cylinder, means on said body and on a fixed part of said firearm for locking said bodyagainst axial displacement, said locking means being releasable by a' partial rotation of said body, whereby said body can be inserted and withdrawn axially, a resilient arm fixed at one end to said body and being curved so as to encompass a portion of the barrel and cooperate therewith and a ramrod for releasably locking the other end of said lever.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Toys (AREA)
  • Portable Nailing Machines And Staplers (AREA)
US286705A 1938-07-27 1939-07-26 Stopper for the gas cylinders of gas-pressure loaders in firearms Expired - Lifetime US2331703A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS211679X 1938-07-27

Publications (1)

Publication Number Publication Date
US2331703A true US2331703A (en) 1943-10-12

Family

ID=5450728

Family Applications (1)

Application Number Title Priority Date Filing Date
US286705A Expired - Lifetime US2331703A (en) 1938-07-27 1939-07-26 Stopper for the gas cylinders of gas-pressure loaders in firearms

Country Status (6)

Country Link
US (1) US2331703A (enrdf_load_stackoverflow)
BE (1) BE435523A (enrdf_load_stackoverflow)
CH (1) CH211679A (enrdf_load_stackoverflow)
DE (1) DE733769C (enrdf_load_stackoverflow)
FR (1) FR858228A (enrdf_load_stackoverflow)
GB (1) GB532457A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
GB532457A (en) 1941-01-24
BE435523A (enrdf_load_stackoverflow)
FR858228A (fr) 1940-11-20
DE733769C (de) 1943-04-02
CH211679A (de) 1940-10-15

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