US3416449A - Tandem effect anti-tank projectile - Google Patents

Tandem effect anti-tank projectile Download PDF

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Publication number
US3416449A
US3416449A US600698A US60069866A US3416449A US 3416449 A US3416449 A US 3416449A US 600698 A US600698 A US 600698A US 60069866 A US60069866 A US 60069866A US 3416449 A US3416449 A US 3416449A
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filler
forwardly
projectile
liner
tandem
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US600698A
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Brothers Jack
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US Department of Army
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Army Usa
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/04—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type
    • F42B12/10—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type with shaped or hollow charge
    • F42B12/16—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type with shaped or hollow charge in combination with an additional projectile or charge, acting successively on the target
    • F42B12/18—Hollow charges in tandem arrangement

Definitions

  • ABSTRACT OF THE DISCLOSURE A tandem effect anti-tank projectile, in which the forward impact sensitive nose portion and the rearwardly positioned ignition fuze are interconnected by electrical circuitry, having a first high explosive filler forwardly adjacent the fuze for developing a first forwardly directed shock wave.
  • the first filler has a forwardly opening conical surface to which a first liner is juxtapositioned.
  • a second high explosive filler in the form of a centrally apertured annulus positioned forwardly of the first filler and liner, is responsive to the first developed shock wave and develops a second forwardly directed shock wave.
  • a midsection of the second filler defines a throat-like nozzle portion and extending forwardly therefrom is a forwardly opening conical surface.
  • a second liner surrounds the entire internal surface area of the second filler.
  • This invention relates to weapons and, more particularly, to a high explosive anti-tank weapon.
  • the concept has been developed to provide a protective cover overlying its main armor.
  • the cover could be of earth, mud, clay, fibre glass or other dissimilar material, so as to protect the main armor against prior known weapons.
  • -It is an object of the invention to provide a weapon having the capability of delivering a maximum devastating or destructive force upon the main armor portion of a target provided with a protective cover.
  • Another object of the invention is to provide such a weapon having the capability to first penetrate the target spaci-ve armor and then to defeat or destroy the thereby exposed portion of the main armor.
  • the main projectile body portion has a rearwardly extending tail boom 11 and forwardly extending probe portion 12 that terminates in an impact sensitive nose portion 13.
  • a centrally positioned ignition fuze 14 which is connected by electrical circuitry 15 with the nose portion 13.
  • first body of high explosive filler 16 Extending across the projectile interior forwardly adjacent the fuze 14 is a first body of high explosive filler 16 having a forwardly opening conical surface 17 which is of predetermined contour as is a mating first liner 18.
  • the cup-like liner 18, preferably formed of copper material, has outwardly extending forward-most flange means 19 for a purpose hereinafter described.
  • a second high explosive filler 20 in the form of a centrally apertured annulus is positioned forwardly of the first filler 16 and its liner 1%, with the entire internal surface area of second filler 20 covered with a mating copper liner shown generally at 21 of predetermined annular configuration to define a mid-length throat-like nozzle portion 22 intermediate outwardly tapering conical portions 23, 24 that respectively terminate in forward and 3,416,449 Patented Dec. 17, 1968 rearward outwardly extending flange means 25, 26 which are assembled in suitable sealing positions between or adjacent the preferably threaded connecting means of the central projectile body portion 27 with mating respective portions of the forward and rear-ward projectile body portions 28, 29.
  • the tandem arrangement of the fillers 16, 20 is such that upon impact with the target, nose 13 sends a signal through electrical circuitry 15 to initiate fuze 14 that in turn initiates first explosive filler 16 to develop a first jet or shook wave from liner 18.
  • a major portion of the first jet proceeds axially through the nozzle portion 22 to destroy any spacive armor or protective covering the target may have been provided with, thereby exposing the target main armor.
  • a portion of the first jet initiates the second filler 20 after a predetermined time delay to develop a second jet or shock wave that destroys or defeats the exposed portion of the target main armor.
  • fuze arrangements may be used in tandem for each liner with an appropriate interconnecting time delay means and additional explosive fillers may be employed in tandem to produce further sequential jets.
  • means including a first high explosive filler for developing a first forwardly directed shock wave, said first filler extending across said projectile forwardly adjacent said fuze and having a forwardly opening conical surface,
  • shock wave developing means including a second high explosive filler for developing a second forwardly directed shock wave, said second explosive filler being in the form of a centrally apertured annulus positioned forwardly of said first filler and its liner, a mid-section of said second filler defining a throat-like nozzle portion, said second filler having a forwardly opening conical surface extending forwardly from said nozzle portion, and

Description

Dec. 17, 1968 BROTHERS TANDEM EFFECT ANTI-TANK PROJECTILE Filed Dec. 7, 1966 INVENTOR. JACK BROTHERS ATTORNEYS United States Patent 3,416,449 TANDEM EFFECT ANTI-TANK PROJECTILE Jack Brothers, Succasunna, N.J., assignor to the United States of America as represented by the Secretary of the Army Filed Dec. 7, 1966, Ser. No. 600,698 2 Claims. (Cl. 102-56) ABSTRACT OF THE DISCLOSURE A tandem effect anti-tank projectile, in which the forward impact sensitive nose portion and the rearwardly positioned ignition fuze are interconnected by electrical circuitry, having a first high explosive filler forwardly adjacent the fuze for developing a first forwardly directed shock wave. The first filler has a forwardly opening conical surface to which a first liner is juxtapositioned. A second high explosive filler, in the form of a centrally apertured annulus positioned forwardly of the first filler and liner, is responsive to the first developed shock wave and develops a second forwardly directed shock wave. A midsection of the second filler defines a throat-like nozzle portion and extending forwardly therefrom is a forwardly opening conical surface. A second liner surrounds the entire internal surface area of the second filler.
This invention relates to weapons and, more particularly, to a high explosive anti-tank weapon.
In targets such as armored tanks, the concept has been developed to provide a protective cover overlying its main armor. The cover could be of earth, mud, clay, fibre glass or other dissimilar material, so as to protect the main armor against prior known weapons.
-It is an object of the invention to provide a weapon having the capability of delivering a maximum devastating or destructive force upon the main armor portion of a target provided with a protective cover.
Another object of the invention is to provide such a weapon having the capability to first penetrate the target spaci-ve armor and then to defeat or destroy the thereby exposed portion of the main armor.
These and other objects, advantages and features will become more apparent from the following description and accompanying drawings in which the sole figure is a longitudinal sectional view of the weapon embodying the principles of the invention.
The main projectile body portion has a rearwardly extending tail boom 11 and forwardly extending probe portion 12 that terminates in an impact sensitive nose portion 13. At the rearward portion of the main body portion shown generally at 10 is a centrally positioned ignition fuze 14 which is connected by electrical circuitry 15 with the nose portion 13.
Extending across the projectile interior forwardly adjacent the fuze 14 is a first body of high explosive filler 16 having a forwardly opening conical surface 17 which is of predetermined contour as is a mating first liner 18. The cup-like liner 18, preferably formed of copper material, has outwardly extending forward-most flange means 19 for a purpose hereinafter described.
A second high explosive filler 20 in the form of a centrally apertured annulus is positioned forwardly of the first filler 16 and its liner 1%, with the entire internal surface area of second filler 20 covered with a mating copper liner shown generally at 21 of predetermined annular configuration to define a mid-length throat-like nozzle portion 22 intermediate outwardly tapering conical portions 23, 24 that respectively terminate in forward and 3,416,449 Patented Dec. 17, 1968 rearward outwardly extending flange means 25, 26 which are assembled in suitable sealing positions between or adjacent the preferably threaded connecting means of the central projectile body portion 27 with mating respective portions of the forward and rear-ward projectile body portions 28, 29.
The tandem arrangement of the fillers 16, 20 is such that upon impact with the target, nose 13 sends a signal through electrical circuitry 15 to initiate fuze 14 that in turn initiates first explosive filler 16 to develop a first jet or shook wave from liner 18. A major portion of the first jet proceeds axially through the nozzle portion 22 to destroy any spacive armor or protective covering the target may have been provided with, thereby exposing the target main armor. Meanwhile, a portion of the first jet initiates the second filler 20 after a predetermined time delay to develop a second jet or shock wave that destroys or defeats the exposed portion of the target main armor.
It is contemplated that separate fuze arrangements may be used in tandem for each liner with an appropriate interconnecting time delay means and additional explosive fillers may be employed in tandem to produce further sequential jets.
Various other modifications, alterations or changes may be resorted to without departing from the scope of the invention as defined in the appended claims.
I claim:
1. In an anti-tank projectile having a forward impact sensitive nose portion, rearwardly positioned ignition fuze, and electrical circuitry interconnecting said nose with said fuze,
means including a first high explosive filler for developing a first forwardly directed shock wave, said first filler extending across said projectile forwardly adjacent said fuze and having a forwardly opening conical surface,
a first liner juxtapositioned said first filler conical surface,
means, responsive to said first shock wave developing means, including a second high explosive filler for developing a second forwardly directed shock wave, said second explosive filler being in the form of a centrally apertured annulus positioned forwardly of said first filler and its liner, a mid-section of said second filler defining a throat-like nozzle portion, said second filler having a forwardly opening conical surface extending forwardly from said nozzle portion, and
a second liner surrounding the entire internal surface area of said second filler.
2. The arrangement in accordance with claim 1 wherein said fillers are mounted in tandem and the forward portion of said projectile has a probe portion extending forwardly of said second filler substantially to said nozzle portion and containing a portion of said electrical circuitry.
References Cited UNITED STATES PATENTS 2,697,400 12/ 1954 Liljegren 10256 2,849,957 9/1958 Kiiller et a1. 102- 56 X FOREIGN PATENTS 999,974- 10/1951 France. 1,002,092 10/ 1951 France.
BENJAMIN A. BORCHELT, Primary Examiner. JAMES FOX, Assistant Examiner.
U.S. Cl. XJR. 1224
US600698A 1966-12-07 1966-12-07 Tandem effect anti-tank projectile Expired - Lifetime US3416449A (en)

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US600698A US3416449A (en) 1966-12-07 1966-12-07 Tandem effect anti-tank projectile

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Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3750582A (en) * 1971-09-03 1973-08-07 Us Army Projectile with differential tandem shaped charges
US3808972A (en) * 1969-11-25 1974-05-07 Us Navy Dual function bomb
US4004515A (en) * 1971-01-25 1977-01-25 The United States Of America As Represented By The Secretary Of The Navy Sequential jet shaped charge
US4111126A (en) * 1969-01-14 1978-09-05 Messerschmitt-Bolkow-Blohm Gesellschaft Mit Beschrankter Haftung Warhead for use against armored targets
FR2410243A1 (en) * 1977-11-24 1979-06-22 Serat Hollow charge type projectile - has additional charge with delayed detonation which accelerates propagation of main charge core
FR2445945A1 (en) * 1979-01-05 1980-08-01 Luchaire Sa IMPROVEMENTS TO TANDEM HOLLOW LOADS
FR2496252A1 (en) * 1980-12-16 1982-06-18 Serat Multiple stage hollow charge - has conical stages of differing sizes and taper acting in forward and rear directions
US4421030A (en) * 1981-10-15 1983-12-20 The Boeing Company In-line fuze concept for antiarmor tactical warheads
US4466353A (en) * 1983-03-24 1984-08-21 The United States Of America As Represented By The Secretary Of The Army High velocity jet shaped charge
FR2547909A1 (en) * 1981-04-29 1984-12-28 Messerschmitt Boelkow Blohm DEVICE FOR STARTING AN EXPLOSIVE LOAD
US4567829A (en) * 1984-07-30 1986-02-04 General Electric Company Shaped charge projectile system
US4579059A (en) * 1984-03-27 1986-04-01 Abraham Flatau Tubular projectile having an explosive material therein
US4724767A (en) * 1986-04-24 1988-02-16 Schlumberger Technology Corporation Shaped charge apparatus and method
US4798144A (en) * 1985-09-11 1989-01-17 Hoesch Aktiengesellschaft Hollow charge shell constructed as drill ammunition
EP0324449A2 (en) * 1988-01-14 1989-07-19 Alliant Techsystems Inc. Projectile
US4967666A (en) * 1979-01-11 1990-11-06 Messerschmitt-Bolkow-Blohm Gmbh Warhead against fortified or armored targets, particularly for damaging runways, roadway pavings, bunker walls or the like
GB2239694A (en) * 1978-04-17 1991-07-10 Rheinmetall Gmbh Tandem armour piercing hollow charge
FR2671618A1 (en) * 1988-11-15 1992-07-17 Thomson Brandt Armements Explosive device with hollow charge intended to perforate armour which is protected by reactive armour
DE4202780A1 (en) * 1992-01-31 1993-08-05 Rheinmetall Gmbh Projectile for use in large calibre gun - is made in two parts and has body containing propellant charge which can be fitted with either of two heads for practice or actual warfare
DE19827171A1 (en) * 1998-06-18 1999-12-23 Dynamit Nobel Ag Weapon, especially anti-tank weapon
US20060266247A1 (en) * 2005-05-27 2006-11-30 Gilliam Jason C Multi-purpose single initiated tandem warhead

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR999974A (en) * 1946-02-11 1952-02-06 Soc Tech De Rech Ind Improvements to shaped charge machines
FR1002092A (en) * 1946-07-25 1952-03-03 Soc Tech De Rech Ind Perforating projectiles improvements
US2697400A (en) * 1944-02-14 1954-12-21 Lyle K Liljegren Projectile with shaped charge and point initiating fuze
US2849957A (en) * 1953-01-27 1958-09-02 Bofors Ab Explosive projectile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2697400A (en) * 1944-02-14 1954-12-21 Lyle K Liljegren Projectile with shaped charge and point initiating fuze
FR999974A (en) * 1946-02-11 1952-02-06 Soc Tech De Rech Ind Improvements to shaped charge machines
FR1002092A (en) * 1946-07-25 1952-03-03 Soc Tech De Rech Ind Perforating projectiles improvements
US2849957A (en) * 1953-01-27 1958-09-02 Bofors Ab Explosive projectile

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4111126A (en) * 1969-01-14 1978-09-05 Messerschmitt-Bolkow-Blohm Gesellschaft Mit Beschrankter Haftung Warhead for use against armored targets
US3808972A (en) * 1969-11-25 1974-05-07 Us Navy Dual function bomb
US4004515A (en) * 1971-01-25 1977-01-25 The United States Of America As Represented By The Secretary Of The Navy Sequential jet shaped charge
US3750582A (en) * 1971-09-03 1973-08-07 Us Army Projectile with differential tandem shaped charges
FR2410243A1 (en) * 1977-11-24 1979-06-22 Serat Hollow charge type projectile - has additional charge with delayed detonation which accelerates propagation of main charge core
GB2239694B (en) * 1978-04-17 1992-08-19 Rheinmetall Gmbh Tandem armour piercing hollow-charge
GB2239694A (en) * 1978-04-17 1991-07-10 Rheinmetall Gmbh Tandem armour piercing hollow charge
FR2445945A1 (en) * 1979-01-05 1980-08-01 Luchaire Sa IMPROVEMENTS TO TANDEM HOLLOW LOADS
US4967666A (en) * 1979-01-11 1990-11-06 Messerschmitt-Bolkow-Blohm Gmbh Warhead against fortified or armored targets, particularly for damaging runways, roadway pavings, bunker walls or the like
FR2496252A1 (en) * 1980-12-16 1982-06-18 Serat Multiple stage hollow charge - has conical stages of differing sizes and taper acting in forward and rear directions
FR2547909A1 (en) * 1981-04-29 1984-12-28 Messerschmitt Boelkow Blohm DEVICE FOR STARTING AN EXPLOSIVE LOAD
US4421030A (en) * 1981-10-15 1983-12-20 The Boeing Company In-line fuze concept for antiarmor tactical warheads
US4466353A (en) * 1983-03-24 1984-08-21 The United States Of America As Represented By The Secretary Of The Army High velocity jet shaped charge
US4579059A (en) * 1984-03-27 1986-04-01 Abraham Flatau Tubular projectile having an explosive material therein
WO1986000979A1 (en) * 1984-07-30 1986-02-13 General Electric Company Shaped charge projectile system
US4567829A (en) * 1984-07-30 1986-02-04 General Electric Company Shaped charge projectile system
US4798144A (en) * 1985-09-11 1989-01-17 Hoesch Aktiengesellschaft Hollow charge shell constructed as drill ammunition
US4724767A (en) * 1986-04-24 1988-02-16 Schlumberger Technology Corporation Shaped charge apparatus and method
EP0324449A3 (en) * 1988-01-14 1990-02-14 Alliant Techsystems Inc. Projectile
EP0324449A2 (en) * 1988-01-14 1989-07-19 Alliant Techsystems Inc. Projectile
FR2671618A1 (en) * 1988-11-15 1992-07-17 Thomson Brandt Armements Explosive device with hollow charge intended to perforate armour which is protected by reactive armour
EP0561085A1 (en) * 1988-11-15 1993-09-22 Thomson-Brandt Armements Hollow charge for perforating an armour which is protected by a reactive pre-armour
US5394804A (en) * 1988-11-15 1995-03-07 Thomson-Brandt Armements Explosive device with a hollow charge, designed for penetrating armor protected by active primary armor
DE4202780A1 (en) * 1992-01-31 1993-08-05 Rheinmetall Gmbh Projectile for use in large calibre gun - is made in two parts and has body containing propellant charge which can be fitted with either of two heads for practice or actual warfare
DE19827171A1 (en) * 1998-06-18 1999-12-23 Dynamit Nobel Ag Weapon, especially anti-tank weapon
US20060266247A1 (en) * 2005-05-27 2006-11-30 Gilliam Jason C Multi-purpose single initiated tandem warhead
US7363862B2 (en) * 2005-05-27 2008-04-29 United States Of America As Represented By The Secretary Of The Army Multi-purpose single initiated tandem warhead

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