US3064381A - Combination firearm and grenade - Google Patents

Combination firearm and grenade Download PDF

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Publication number
US3064381A
US3064381A US10443A US1044360A US3064381A US 3064381 A US3064381 A US 3064381A US 10443 A US10443 A US 10443A US 1044360 A US1044360 A US 1044360A US 3064381 A US3064381 A US 3064381A
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US
United States
Prior art keywords
firearm
conical
projectile
aforesaid
passage
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
US10443A
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English (en)
Inventor
Vilbajo Jean
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.)
AVR Achat Ventes Representations SA
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AVR Achat Ventes Representations SA
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Publication date
Application filed by AVR Achat Ventes Representations SA filed Critical AVR Achat Ventes Representations SA
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Publication of US3064381A publication Critical patent/US3064381A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
    • F42B10/32—Range-reducing or range-increasing arrangements; Fall-retarding means
    • F42B10/34—Tubular projectiles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B30/00—Projectiles or missiles, not otherwise provided for, characterised by the ammunition class or type, e.g. by the launching apparatus or weapon used
    • F42B30/04—Rifle grenades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B8/00—Practice or training ammunition
    • F42B8/02—Cartridges
    • F42B8/04—Blank cartridges, i.e. primed cartridges without projectile but containing an explosive or combustible powder charge
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S102/00—Ammunition and explosives
    • Y10S102/702—Compression ignition

Definitions

  • grenades and similar projectiles intended to be shot from a firearm which most of the time is a rifle, the barrel of which is fitted with a grenade sleeve, are made of a head comprising a cylindrical middle part and two conical ends; the forward butt end is thereby fitted With an impact device, whereas the rear butt end extendsinto a tubular tail which carries the fins.
  • Such projectiles are slipped over the muzzle end of the barrel and are propelled by a normal cartridge fired from aforesaid firearm.
  • the object of the present invention is to bring about improvements to aforesaid projectiles in order to eliminate systematically all these disadvantages by making, so to say, the ballistic behaviour of such projectiles independent of the actual ballistic conditions appertaining to the firing of cartridges by the firearm.
  • These improvements essentially consist in providing the projectile itself with the charge needed for its propulsion, the part played by the firearm being limited to the ignition of this propelling charge.
  • Another characteristic of the present invention is the means applied for-rendering aforesaid projectiles practically autopropelled.
  • This means may be such that it requires no modification whatever of the normal manufacturing of aforesaid projectiles, as the ignition means in question can be fitted subsequently and easily put into its correct position.
  • This position is such that, when the projectile is normally fitted on the muzzle, aforesaid ignition device fastened to the projectile fits onto the end of the muzzle and preferably even penetrates slightly ,into the barrel in such way that aforesaid firing device meets on aforesaid muzzle a highly resistant support against the reaction stresses at the moment of firing.
  • Still another characteristic of the present invention is to be found in the simple way in which such propelling device can be made, whilst being extremely efiicient.
  • the propelling device mainly consists of a hollow cylindrical body which can be adjusted by a sliding fit into the bottom of the tubular tail of the projectile, this hollow body containing, on the one hand the propelling charge, and on the other hand an ignition relay, both parts being separated from each other by at least one passage comprising a device which closes automatically at the very instant when aforesaid propelling charge is ignited.
  • FIGURE 1 represents in a most summary and diagrammatic way, a plan view, with partial section, of the application of the device conforming to the present invention, to a grenade fitted With fins;
  • FIGURE 2 represents half a front view and half a radial section of one very characteristic propulsion device
  • FIGURE 3 is an exploded view of the component parts of the device
  • FIGURE 4 is a diagrammatic radial section of the device represented in FIGURE 2, at the moment when the propelling charge is being ignited;
  • FIGURE 5 is an end view in the direction of arrow F of FIGURE 3.
  • .rnostsummary sketch is given of a projectile consisting of the head l, the tubular tail 2 and the fins 3.
  • the propelling device 4 is introduced and held in the bottom of the tubular tail 2.
  • This device carries the charge which is going to propel the projectile, as well as the means for igniting this charge with the help of the firearm onto the barrel of which the tubular tail 2 of aforesaid projectile Will have been slid. After the firearm is discharged, the propelling device 4 will separate from the projectile.
  • FIGURES 2 to 5 represent one particular form of embodiment of aforesaid propelling device 4.
  • this device consists of a hollow cylindrical body 5 the outside diameter D of which is practically equal to the inner diameter D of the tubular tail 2 of the projectile so that aforesaid hollow body 5 might be adjusted with a comparatively easy fit.
  • This hollow body 5 extends into a hollow part 6 with inside screw thread, cornmunicating with aforesaid hollow body 5 through a central opening 7; at the bottom of this hollow part 6 a disc 8 is applied, which disc is provided with holes 9 symmetrically disposed around its center.
  • the cylindrical threaded part 10 of a second tubular part 11 is screwed.
  • This tubular part 11 terminates in a conical end 12.
  • the component made up of aforesaid threaded part 10 and aforesaid part 11 has an axial bore which comprises in succession, starting from the conical end 12, a first bore 13, a second bore 14 of smaller diameter, a conical passage 15 which converges towards the center of aforesaid threaded part 10, and another conical passage 16 which is an extension of the former but diverges toward the rear face of aforesaid conical part 10.
  • the conical passage which was mentioned last is such that it covers the whole of the various openings 9 in the inset disc 8.
  • a ball 17 is placed, the diameter of which is slightly larger than the smallest common diameter of both aforesaid conical passages 15 and 16.
  • the propelling charge 18 is contained in the hollow body 5 and held in its place by a cup 19 which can be covered by a lid Ztl fitted for instance in an inner groove 21 and held in its place by a peripheral setting 22.
  • a relay 23 is fastened in the second bore 14 by means of a ring 24 onto which is applied a thin disc 25 of some very easily tearable material such as paper.
  • Both tubular parts 6 and 11 are each provided with two diametrically opposite flats 2627 and 2829 respectively, intended for accommodating appropriate Wrenches.
  • the propelling device may thus in this way be introduced into the tubular tail 2 and fastened at the bottom of the latter against the adjacent part of head 1, either by a simple tight fit, or by means of some appropriate adhesive of any known kind.
  • the projectile which has thus been improved can be fitted in the normal way over the muzzle 30', which latter can be provided with a grenade sleeve 31 or any other well known device. All that needs be done then, is to make use of some means which will propagate through the barrel of the firearm a flame or a wave capable of igniting the relay 23 which, in turn, ignites the propelling charge 18.
  • the propelling device conforming to the present invention fulfills a double function of which the first consists inimparting to the projectile a sufiicient amount of energy in order that it might reach its target, whereas the second consists in preventing the operation of the auto matic cocking mechanism of the firearm. It is.
  • the primer of the propellant charge is constituted by the relay 23 which is directly ignited by the gases produced by the firing of the firearm.
  • the ball 17 provides a closing means which is open at the moment of the firing, so that gases produced by the firing action are able to reach and ignite the relay.
  • the passage is closed at the moment the propellant charge is ignited so that the gases produced by the propellant charge are not able to enter the barrel.
  • this propelling device can of course be modified or adapted in various Ways, either by changing the shape, the dimensions and the relative position of the charge, or by making use of another means for mitng the gases from back-firing towards the cocking mechanism, or further by introducing different means for systematically blocking their way to the rear.
  • the present invention concerns not only the application as such, to any projectile of the type which has been described, of an individual means of propulsion consisting substantially of a charge and of a device which prevents the back-firing of the gases towards the cocking mechanism of the firearm, but also the device as such, the projectile fitted with this device, as well as the particular device such as it has been described above and represented in the appended drawings.
  • a firearm having a muzzle, a projectile fitted upon said muzzle, a cartridge fitting into said projectile and comprising a cylindrical casing having a front explosive-receiving chamber, a rear end and an axial passage having a frusto-conical portion communicating with said chamber and converging in the direction toward said rear end and another frusto-conical portion constituting a continuation of the first-mentioned frusto-coni; cal portion and diverging in the direction toward said rear end, an ignition relay in the second-mentioned frusto-conical portion adjacent said rear end, and a ball located in the first-mentioned frusto-conical portion and movable to close the passage between the two frusto-conical portions upon ignition of the explosive in said chamber to prevent expansion of gases produced by said ignition into the muzzle of said firearm.
  • a firearm having a muzzle, a projectile fitted upon said muzzle, a cartridge fitting into said projectile and comprising a casing having a cylindrical portion containing an explosive-receiving chamber, and a cylindrical passage communicating with said chamber, a tubular portion firmly connected with said cylindrical portion and another tubular portion threaded at one end into the first-mentioned tubular portion, the second-mentioned tubular portion having a frusto-conical portion communicating with said cylindrical passage and converging in a direction away from the threaded end and another frusto-conical portion constituting a continuation of the first-mentioned frusto-conical portion and diverging in a direction away therefrom, an ignition relay carried in the second-mentioned frusto-conical portion, a ball located in the first-mentioned frusto-conical portion and movable to close the passage between the two frusto-conical portions upon ignition of the explosive in said chamber to prevent expansion of gases produced

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Lighters Containing Fuel (AREA)
US10443A 1959-10-28 1960-02-23 Combination firearm and grenade Expired - Lifetime US3064381A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE39319 1959-10-28

Publications (1)

Publication Number Publication Date
US3064381A true US3064381A (en) 1962-11-20

Family

ID=3840168

Family Applications (2)

Application Number Title Priority Date Filing Date
US10443A Expired - Lifetime US3064381A (en) 1959-10-28 1960-02-23 Combination firearm and grenade
US10442A Expired - Lifetime US3174429A (en) 1959-10-28 1960-02-23 Special cartridge for firing projectiles fitted end-on on firearms

Family Applications After (1)

Application Number Title Priority Date Filing Date
US10442A Expired - Lifetime US3174429A (en) 1959-10-28 1960-02-23 Special cartridge for firing projectiles fitted end-on on firearms

Country Status (7)

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US (2) US3064381A (US06272168-20010807-M00014.png)
BE (1) BE584079A (US06272168-20010807-M00014.png)
CH (2) CH368396A (US06272168-20010807-M00014.png)
DE (2) DE1146784B (US06272168-20010807-M00014.png)
FR (2) FR1244029A (US06272168-20010807-M00014.png)
GB (2) GB904073A (US06272168-20010807-M00014.png)
NL (4) NL247807A (US06272168-20010807-M00014.png)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3140660A (en) * 1961-12-07 1964-07-14 Brevets Aero Mecaniques Grenades comprising a booster and similar devices to be launched by a firearm
US3245350A (en) * 1963-04-29 1966-04-12 Joseph A Kelly Rocket propelled device for straightline payload transport
US3503299A (en) * 1966-11-30 1970-03-31 Victor Comptometer Corp Air operated projectile firing apparatus
US3505958A (en) * 1967-06-27 1970-04-14 Contigea Sa Devices and weapons using delayed priming
US3521523A (en) * 1961-05-03 1970-07-21 Victor Comptometer Corp Air operated projectile firing apparatus
US3630150A (en) * 1969-10-27 1971-12-28 Singer Co Actuating mechanism
US4215632A (en) * 1977-05-11 1980-08-05 Eurometaal N.V. Exercise projectile, more especially of the discarding sabot type
US4971750A (en) * 1989-06-29 1990-11-20 Westinghouse Electric Corp. End stop for welding sealing plugs of nuclear fuel rods
US10139207B2 (en) * 2016-02-04 2018-11-27 Richard D Adams Projectile having increased velocity and aerodynamic performance

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE856186A (fr) * 1977-06-28 1977-12-28 Herstal Sa Fusee pyrotechnique
FR2744796B1 (fr) * 1996-02-13 1998-10-02 Nakache Patrick Balle de haute precision
AUPR528001A0 (en) * 2001-05-25 2001-08-16 Metal Storm Limited Firearms

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2415803A (en) * 1944-12-23 1947-02-18 Abell Royal Allen Cartridge
US2944486A (en) * 1954-01-21 1960-07-12 Hotchkiss Brandt Self-propelled projectile

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE68733C (de) * Freiherr D. VON REIBNITZ in Berlin W., Bülowstr. 80 Platzpatrone
DE424628C (de) * 1926-01-27 Paul Schwenke Zuendroehrchen
US2398683A (en) * 1946-04-16 Cartridge for actuating gas pres
DE424627C (de) * 1926-01-27 Paul Schwenke Zuendroehrchen als Ersatz fuer Zuendschnuere
DE46698C (de) * LORENZ in Karlsruhe, Baden Zündvorrichtung für Metall-Kartuschen
DE300195C (US06272168-20010807-M00014.png) *
US103514A (en) * 1870-05-24 Improvement in projectiles
US726579A (en) * 1902-09-22 1903-04-28 Otto Schuette Blank cartridge.
CH47801A (US06272168-20010807-M00014.png) * 1908-05-07
US965745A (en) * 1909-11-16 1910-07-26 Lee B Purcell Blank cartridge.
FR504651A (fr) * 1918-04-19 1920-07-12 Schneider & Cie Projectile pour lance-bombes
USRE16078E (en) * 1922-04-17 1925-05-19 A cobpobation of
US1804986A (en) * 1930-03-01 1931-05-12 Peters Cartridge Company Blank cartridge
US1899618A (en) * 1932-07-07 1933-02-28 Holthe John Cartridge
GB572639A (en) * 1941-04-08 1945-10-17 Latham Valentine Stewart Black Improvements in and relating to grenades or bombs
US2432539A (en) * 1944-04-19 1947-12-16 Olsen Charles Robert Grenade launching tube and auxiliary cartridge therefor
BE522074A (US06272168-20010807-M00014.png) * 1952-09-15

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2415803A (en) * 1944-12-23 1947-02-18 Abell Royal Allen Cartridge
US2944486A (en) * 1954-01-21 1960-07-12 Hotchkiss Brandt Self-propelled projectile

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3521523A (en) * 1961-05-03 1970-07-21 Victor Comptometer Corp Air operated projectile firing apparatus
US3951038A (en) * 1961-05-03 1976-04-20 Victor Comptometer Corporation Air operated projectile firing apparatus
US3140660A (en) * 1961-12-07 1964-07-14 Brevets Aero Mecaniques Grenades comprising a booster and similar devices to be launched by a firearm
US3245350A (en) * 1963-04-29 1966-04-12 Joseph A Kelly Rocket propelled device for straightline payload transport
US3503299A (en) * 1966-11-30 1970-03-31 Victor Comptometer Corp Air operated projectile firing apparatus
US3505958A (en) * 1967-06-27 1970-04-14 Contigea Sa Devices and weapons using delayed priming
US3630150A (en) * 1969-10-27 1971-12-28 Singer Co Actuating mechanism
US4215632A (en) * 1977-05-11 1980-08-05 Eurometaal N.V. Exercise projectile, more especially of the discarding sabot type
US4971750A (en) * 1989-06-29 1990-11-20 Westinghouse Electric Corp. End stop for welding sealing plugs of nuclear fuel rods
US10139207B2 (en) * 2016-02-04 2018-11-27 Richard D Adams Projectile having increased velocity and aerodynamic performance

Also Published As

Publication number Publication date
NL247808A (US06272168-20010807-M00014.png)
NL104262C (US06272168-20010807-M00014.png)
NL247807A (US06272168-20010807-M00014.png)
BE584079A (US06272168-20010807-M00014.png)
CH367412A (fr) 1963-02-15
DE1152040B (de) 1963-07-25
NL101724C (US06272168-20010807-M00014.png)
FR1244028A (fr) 1960-10-21
GB904074A (en) 1962-08-22
FR1244029A (fr) 1960-10-21
DE1146784B (de) 1963-04-04
US3174429A (en) 1965-03-23
GB904073A (en) 1962-08-22
CH368396A (fr) 1963-03-31

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