WO1999022193A1 - Armes a balles automatiques - Google Patents

Armes a balles automatiques Download PDF

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Publication number
WO1999022193A1
WO1999022193A1 PCT/GB1998/003212 GB9803212W WO9922193A1 WO 1999022193 A1 WO1999022193 A1 WO 1999022193A1 GB 9803212 W GB9803212 W GB 9803212W WO 9922193 A1 WO9922193 A1 WO 9922193A1
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
powder
bullet
end cap
blocking element
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.)
Ceased
Application number
PCT/GB1998/003212
Other languages
English (en)
Inventor
Hugh Peter Mascetti
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
Priority to HU0004844A priority Critical patent/HUP0004844A2/hu
Priority to AU96362/98A priority patent/AU9636298A/en
Priority to EP98950203A priority patent/EP1025412A1/fr
Priority to CA002306151A priority patent/CA2306151A1/fr
Publication of WO1999022193A1 publication Critical patent/WO1999022193A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
    • F41C3/00—Pistols, e.g. revolvers
    • F41C3/14—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
    • F41A15/20—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

  • the present invention relates to multiple shot, bullet discharging weapons relying on the ignition of a combustible powder for the propulsive force.
  • preloaded ammunition typically comprises a cartridge case containing a combustible powder, a bullet closing the case and tightly fitting in one end and a primer at the other end which, when activated, serves to initiate combustion of the powder, leading to an explosive release of exhaust gases, forcing the bullet out of the cartridge case and down the barrel of the weapon.
  • preloaded ammunition can be provided in magazines of any desired size, and is exceedingly easy to use.
  • black powder weapons are unsuited for use with the more powerful "nitro" powder, used in preloaded ammunition. Essentially, if nitro powder is used in black powder weapons, then the weapons will tend to explode or, at least, become seriously damaged or be dangerous to the user. This can be overcome by suitable strengthening of the weapon, but there is no black powder, or muzzle loading type, weapon on the market which is designed for use with nitro powder. Muzzle loading weapons also tend to be inaccurate owing to the way that the powder is ignited. A percussion cap containing a small amount of primer material is placed over a nipple which has a flash hole leading to the powder to one side at the back of the powder chamber.
  • US-A-5, 487,232 discloses a black powder, single-shot rifle having a primer carrier carrying a primer which fits over a nipple, in line with the charge.
  • the carrier is made of plastic, with a tab extending outwards to indicate that the firearm is charged.
  • US-A-5,623,779 discloses a muzzle-loading firearm having an insert for fixing in a barrel of a rifle, the powder and bullet being rammed into the end of the insert.
  • a primer carrier is associated with the other end of the insert, and the primer discharges through a hole in the insert to ignite the black powder.
  • Both of these patents relate to hunting rifles, so that large and complex mechanisms which are difficult to clean are of little or no problem, given that very few shots are likely to be discharged in any given day. These mechanisms, however, are not applicable to target weapons, which are typically discharged 100 or more times in a session.
  • the present invention provides a multiple shot, bullet discharging weapon comprising: multiple chambers from which a bullet is discharged, each chamber having a first portion to receive combustible material, preferably a combustible powder, and a second portion to receive a bullet; and for each chamber, a blocking element being fixedly located in a bore comprising the chamber, the blocking element being in operable communication with the powder receiving portion of each chamber and distal to the bullet receiving portion of the chamber, a flash hole being provided in the blocking element, each bore being configured to receive a replaceable end cap such that the end cap is anterior to the blocking element and that a wall or walls of the end cap engage the inside of the bore, a primer being associated with the end cap, whereby detonation of the primer serves to ignite powder in the bullet chamber via the flash hole, thereby to cause combustion of the powder and propel a bullet from the chamber, the end cap being prevented from ejection, in the firing position, by the frame of the weapon.
  • the blocking element as well as the bore is configured to receive a replaceable end cap, so that the end cap is located over the blocking element and that a wall or walls of the end cap are immediately proximate to or engage the blocking element as well as engaging the inside of the bore.
  • the bore of which the chamber forms a part, may be of any suitable configuration. While there is no requirement that every section of the bore be coaxial, such as where the end cap receiving portion may be offset from the rest of the bore, for example, it will be appreciated that it is generally preferred for each part of the bore to be on the same axis.
  • the bore may effectively be discontinuous, where the blocking element is integral with that part of the weapon in which the bore is formed, continuity only being provided by the flash hole, in such a situation.
  • the weapon can be a revolver, for example.
  • a revolver very similar to that for use with preloaded ammunition can now be made as a black powder weapon.
  • a multiple shot black powder weapon can now be provided.
  • the weapon of the present invention is able to loaded with nitro powder, rather than black powder, as the propulsion mechanism allows the weapon to be built to be able to withstand the forces involved. This permits of greater accuracy and is much cleaner.
  • the weapons of the present invention while often referred to herein as “black powder” weapons, are not restricted to the use of black powder and, indeed, may be used with any appropriate powder or propulsive material, and references to weapons of the invention as “black powder” weapons should be construed accordingly.
  • the forcing cone in the cylinder of a standard revolver using preloaded ammunition tends to be located in the bullet chamber, so that the forcing cone is actually part of the cylinder.
  • the chamber comprises two portions, one to receive the bullet and the other to receive the powder. It is not essential that the two portions be specifically segregated in any way.
  • the chamber may have the same bore, so that the powder is first deposited into the chamber and then the bullet rammed in on top of the powder.
  • any shoulder in the chamber between the portion to receive the powder and the portion to receive the bullet will lead to a narrower aperture for the portion to receive the powder, and it is preferred that the diameter of the powder receiving portion of the chamber be the same as that of the aperture to this potion of the chamber, so that there is no raised portion forming a wall upon which force can be exerted during combustion of the powder.
  • the nature of the shoulder may be such that it is chamfered, or it may be a straight forward ledge, for example.
  • the configuration of the shoulder can be tailored according to preference, and those skilled in the art will appreciate where to position such a shoulder.
  • the powder chamber is not sufficiently full, then this can lead to greater concentrations of powder in one portion of the chamber, thereby leading to uneven and inefficient combustion and, concomitantly, affect the accuracy of aim.
  • bullets such as those used with preloaded ammunition, including chisel and round nose types.
  • black powder weapons tend not to be built robustly enough to be able to be used with nitro powder, but with weapons of the present invention, similar constructs can be used as with weapons using preloaded ammunition, so that, as noted above, there is no reason not to use nitro powder, provided that the construction of the weapon is sufficiently robust for such use, for the safety of the user.
  • the blocking element may be provided in any suitable form, provided that it has a flash hole enabling the primer to ignite the powder.
  • the blocking element may be integral with the block.
  • the block In a revolver, the block will be the cylinder, each chamber being reamed out of the cylinder, six such chambers being provided in a standard revolver.
  • the blocking element may be integral with the block (which will also be referred to herein as the cylinder, although other constructs, such as for rifles, will still be included, even if the block is referred to as the cylinder), it will be appreciated that it may also be preferable to have a separate element introduced.
  • the cylinder may have a bore provided all of the way through, in a manner similar to standard revolvers, and the blocking element may be secured therein at the bottom of the powder chamber.
  • the element may be screwed into place, it may be integral as stated above, or it may be seated on a shoulder, such as may be provided by having a slightly larger bore for receiving the blocking element than for the powder chamber.
  • the blocking element is a separate element, then this may be secured within the bore by any recognised means.
  • the element may be slightly tapered towards the rear and be intended to sit on a shoulder abutting the powder chamber. If a similar configuration is provided in the bore and the element is substantially cooled, then it can easily be inserted and, once it has warmed up, will be essentially immovable.
  • the blocking element is screwed in so that it may be replaced individually, if it becomes corroded, rather than replace the entire cylinder. Other means will be readily apparent to those skilled in the art.
  • nitro powder it may be preferable to incorporate part, or all, of the powder receiving portion of the chamber in the blocking element. This has advantages in making the bore, and can also allow different blocking elements to be provided having different powder receiving capacities to provide for different strength weapons.
  • the shape of the flash hole provided through the blocking element should be such as to enable efficient transfer of heat generated by the primer to the combustible powder.
  • One preferred configuration is a tapering hole, getting narrower towards the aperture to the powder chamber, thus providing a very specific and central ignition point for the powder, thereby ensuring even combustion.
  • the flash hole prefferably has the same diameter all the way along, but suitable configurations will be apparent to those skilled in the art. However, it is specifically preferred that the aperture to the powder chamber be narrow, in order to avoid any significant amount of powder penetrating the flash hole.
  • the length of the flash hole will be determined by the size of the blocking element, the blocking element substantially providing a first degree of obturation to the combusting powder.
  • the blocking element should be sufficiently strong that it is substantially completely unaffected, physically, by repeated discharge of the weapon. Suitable sizes of the blocking element will, therefore, be readily apparent to those skilled in the art.
  • the configuration of the end cap is such that it is located within the bore immediately behind the blocking element and in a manner such that detonation of the primer can ignite the powder via the flash hole.
  • Various configurations will again be apparent to those skilled in the art, and these will generally be dependent on the nature of the primer, which will generally be centre fire or rim fire. In any event, it is especially preferred that the primer be sealed within the end cap from outside inspection, once it has been loaded into the bor,e.
  • a preferred form of end cap is in the nature of a brass cylinder having one closed end, the open end of the cylinder locating into the bore. While brass is a generally preferred material, it will be appreciated that other sufficiently resilient materials may be, such as rigidised plastics. Other suitable materials will be readily apparent to those skilled in the art.
  • the walls of the cylinder extend sufficiently far into the bore that they provide for stable insertion, as well as helping to provide a closed system on ignition of the powder, when the superheated combustion gasses will blow back down the flash hole into the end cap, which can then expand and engage the walls of the bore to provide a completely closed system at this point, directing all of the power of the combusting powder to the bullet, and preventing potentially injurious discharge through the rear of the cylinder.
  • the walls of the end cap extend sufficiently far into the bore that they engage the blocking element.
  • the rear portion of the blocking element may have a groove or recess into which the walls of the end cap can fit.
  • the walls of the end cap may engage the bore, whilst on the inside they are immediately proximate to or engage the wall of the blocking element. In this configuration, at the position where the walls engage the blocking element, it may be preferable to slightly crimp the walls of the end cap to provide an interference fit with the blocking element.
  • a friction band such as might be made from a rubbery material, may be incorporated into the inside of the walls of the end cap, or, less preferably, onto the recess of the blocking element, also to provide a friction assisted fit.
  • a recess is provided in the blocking element for mating with the walls of the end cap, it may be desirable to provide a blocking element in two parts.
  • the first part is that having a wider diameter, and may be in the form of a sleeve which locates into the bore and is securable there.
  • the second part then comprises some, but preferably all, of the flash hole, and is locatable, preferably by screwing, into the sleeve portion.
  • the narrower diameter of the outside of the second portion then permits the walls of the end cap to pass over a part of the second portion protruding from the sleeve portion.
  • the primer is sealed into the end cap in a manner similar to that for preloaded ammunition and, indeed, the types of primer used may be identical with those used in preloaded ammunition.
  • the primer may be inserted into a chamber in the end cap having an aperture which, upon insertion of the end cap, will lead substantially directly into the flash hole.
  • the primer is a rim fire primer, then this may be associated with an initiator in the end cap, the initiator typically being sealed in by a suitable membrane. Upon detonation, the initiator provides flame, instantly rupturing the membrane and igniting the powder via the flash hole.
  • primer may also be provided, such as those detonated by an electrical charge.
  • the powder chamber may be cleaned if desired, or reused straightaway. Cleaning is not essential to the present invention, and it will be immediately apparent to those skilled in the art as to when it will be necessary to clean the chamber, and this may be effected by well known means.
  • Reloading may be by simply pouring powder into the chamber and subsequently introducing a bullet. However, it will be appreciated that it is very much preferred if a standard amount of powder is introduced each time, so that a measuring device is preferably used, or at least, a measured amount of powder.
  • a measuring device is preferably used, or at least, a measured amount of powder.
  • rapid reloaders may be appropriate, which can instantly dispense six aliquots of powder into the chambers. Similar reloaders may then also be used to load up the six bullets. Suitable pressure means may also be employed in order to ensure that the bullets are rammed into the appropriate depth in the chamber. This may be effected by means of a suitable lever to engage the loader and the cylinder, for example.
  • the weapons of the present invention may be of many types and that, whilst they have been illustrated herein with respect to revolvers, other weapons, especially rifles, may be suitably adapted for use with the present invention.
  • rifles with falling block or raised block loading mechanisms may be adapted to provide similar advantages to those obtainable with revolvers.
  • Other forms of weaponry adaptable to the present invention will be readily apparent to those skilled in the art.
  • the present invention further provides a method for the discharge of a bullet from a chamber comprising use of a system as defined above.
  • a method for the discharge of a bullet from a chamber wherein the chamber has a first portion to receive combustible powder and a second portion to receive a bullet; a blocking element being fixedly located in a bore comprising the chamber, the blocking element being in operable communication with the powder receiving portion of each chamber and distal to the bullet receiving portion of the chamber, a flash hole being provided in the blocking element, the blocking element and bore being configured to receive a replaceable end cap such that the end cap is located over the blocking element and that a wall or walls of the end cap are immediately proximate to or engage the blocking element and also engage the inside of the bore, a primer being associated with the end cap, comprising detonating the primer to ignite powder in the bullet chamber via the flash hole, thereby to cause combustion of the powder and propel the bullet from the chamber, the end cap being prevented from ejection, in the firing position, by the frame of the weapon.
  • Figure 1 represents a preferred embodiment of the present invention.
  • the cylinder (10) generally comprises a cylindrical bore (20).
  • Combustible powder (30) is provided in powder chamber (40), whilst a bullet (50) is provided in the bullet chamber (60).
  • a shoulder (70) between the powder chamber (40) and the bullet chamber (60) prevents the bullet from compacting the powder (30) in powder chamber (40).
  • Blocking element (80) is located immediately behind powder chamber (40) and has flash hole (90) located therein. Flash hole (90) has an entry aperture (100) and an exit aperture (110) and, in this embodiment, exit aperture (110) is narrower than entry aperture (100).
  • the blocking element is typically made of weapons grade steel.
  • End cap (120) is in the form of a cylinder having a closed end, the open end being defined by walls (130, 130') which, it will be appreciated, form a continuous wall in this instance.
  • Walls (130, 130') locate about a recess (140) on blocking element (80). It is preferred to make the fit between the bore (20), the walls (130, 130') and the recess (140) as snug as possible so that, on insertion of the end cap (120), the walls (130, 130') are flush with both the recess (140) and the bore (20).
  • a primer (150) is sealed into end cap (120).
  • the flame, or heat, from the primer exits through aperture (160) along flash hole (90) and through aperture (110) to ignite the powder (30), thereby forcing bullet (50) from the chamber (60) into the barrel (170), only the beginning of which is depicted.
  • the superheated combustion gasses wash back down the flash hole (90) to the end cap (120), and the combination of heat and pressure may serve to temporarily expand the end cap (120), which is typically made of brass, to tightly grip the bore (20) to provide a complete, obturating seal at the rear of the weapon.
  • end cap (120) is prevented from being ejected from the bore by the part of the frame (200).
  • extractor (180) may be used to eject end cap (120) by action upon lip (190) provided around the periphery of the end cap (120).
  • powder chamber (40) may be cleaned if desired.
  • the cylinder gap is also depicted at (220).

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Toys (AREA)

Abstract

Arme à chargement par la bouche comportant un système de propulsion de balles destiné à propulser une balle depuis une chambre à balles. Cette dernière, qui comprend une première partie destinée à recevoir la poudre combustible et une seconde partie destinée à recevoir la balle, est caractérisée par le fait qu'un élément de blocage est fixé, à distance de la partie de réception de la balle, de façon à communiquer avec la partie de réception de la poudre. L'élément de blocage présente un évent. Un bouchon arrière amovible, auquel est associée une amorce, peut être disposé au-dessus dudit élément. La détonation de l'amorce enflamme la poudre contenue dans la chambre à balles au travers de l'évent, ce qui provoque la combustion de la poudre et la propulsion d'une balle depuis la chambre. Ce système améliore nettement la précision et l'efficacité de l'arme.
PCT/GB1998/003212 1997-10-28 1998-10-28 Armes a balles automatiques Ceased WO1999022193A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
HU0004844A HUP0004844A2 (hu) 1997-10-28 1998-10-28 Többlövetű, golyókilövő fegyver
AU96362/98A AU9636298A (en) 1997-10-28 1998-10-28 Multiple shot, bullet discharging weapons
EP98950203A EP1025412A1 (fr) 1997-10-28 1998-10-28 Armes a balles automatiques
CA002306151A CA2306151A1 (fr) 1997-10-28 1998-10-28 Armes a balles automatiques

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9722774.8 1997-10-28
GB9722774A GB2330897B (en) 1997-10-28 1997-10-28 Multiple shot, bullet discharging weapons

Publications (1)

Publication Number Publication Date
WO1999022193A1 true WO1999022193A1 (fr) 1999-05-06

Family

ID=10821226

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1998/003212 Ceased WO1999022193A1 (fr) 1997-10-28 1998-10-28 Armes a balles automatiques

Country Status (6)

Country Link
EP (1) EP1025412A1 (fr)
AU (1) AU9636298A (fr)
CA (1) CA2306151A1 (fr)
GB (1) GB2330897B (fr)
HU (1) HUP0004844A2 (fr)
WO (1) WO1999022193A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2158892C1 (ru) * 2000-01-31 2000-11-10 Савинков Олег Иванович Узел барабана огнестрельного оружия

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2791421B1 (fr) * 1999-03-25 2001-05-04 Humbert Ctts Sa Arme de neutralisation a canon surdimensionne

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3765116A (en) * 1971-01-07 1973-10-16 Colt Ind Operating Corp Cylinder for revolvers
FR2590011A1 (fr) * 1985-11-08 1987-05-15 Noguier Roland Perfectionnements apportes aux revolvers a percussion avec chargement par la gueule du barillet
US5487232A (en) 1994-04-26 1996-01-30 The Marlin Firearms Company Detonator assembly
US5623779A (en) 1993-11-18 1997-04-29 Rainey, Iii; William F. Muzzle-loading firearm

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3783545A (en) * 1972-05-10 1974-01-08 Sturm Ruger & Co Loading lever arrangement for muzzle loading revolver
US4715139A (en) * 1987-03-03 1987-12-29 Rodney Jr Frederick W Closed breech muzzle loader and loading tool
US4888901A (en) * 1989-04-25 1989-12-26 K. W. Thompson Tool Co., Inc. Firearm
US5307583A (en) * 1992-09-29 1994-05-03 Gary Mahn Muzzle loading weapon ignition system
US5561934A (en) * 1994-11-23 1996-10-08 Modern Muzzleloading, Inc. Breech plug and ignition system for muzzle-loading firearm
US5644861A (en) * 1995-09-22 1997-07-08 Modern Muzzleloading, Inc. Firing mechanism for muzzleloading rifles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3765116A (en) * 1971-01-07 1973-10-16 Colt Ind Operating Corp Cylinder for revolvers
FR2590011A1 (fr) * 1985-11-08 1987-05-15 Noguier Roland Perfectionnements apportes aux revolvers a percussion avec chargement par la gueule du barillet
US5623779A (en) 1993-11-18 1997-04-29 Rainey, Iii; William F. Muzzle-loading firearm
US5487232A (en) 1994-04-26 1996-01-30 The Marlin Firearms Company Detonator assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2158892C1 (ru) * 2000-01-31 2000-11-10 Савинков Олег Иванович Узел барабана огнестрельного оружия
WO2001057465A1 (fr) * 2000-01-31 2001-08-09 Oleg Ivanovich Savinkov Unite de barillet pour arme a feu

Also Published As

Publication number Publication date
HUP0004844A2 (hu) 2001-05-28
GB2330897B (en) 1999-09-15
EP1025412A1 (fr) 2000-08-09
AU9636298A (en) 1999-05-17
CA2306151A1 (fr) 1999-05-06
GB2330897A (en) 1999-05-05
GB9722774D0 (en) 1997-12-24

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