US2564870A - Armor-piercing and incendiary shell - Google Patents

Armor-piercing and incendiary shell Download PDF

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Publication number
US2564870A
US2564870A US764476A US76447647A US2564870A US 2564870 A US2564870 A US 2564870A US 764476 A US764476 A US 764476A US 76447647 A US76447647 A US 76447647A US 2564870 A US2564870 A US 2564870A
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United States
Prior art keywords
shell
incendiary
charge
piercing
armor
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Expired - Lifetime
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US764476A
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Weiss Willi
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Brev Aero Mecaniques S A Soc
Society Brevets Aero-Mecaniques S A
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Brev Aero Mecaniques S A Soc
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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
    • F42B12/20—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type
    • F42B12/201—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type characterised by target class
    • F42B12/204—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type characterised by target class for attacking structures, e.g. specific buildings or fortifications, ships or vehicles
    • 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
    • F42B12/06—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 hard or heavy core; Kinetic energy penetrators
    • 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
    • F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/44—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information of incendiary type

Definitions

  • the present invention relates to armour piercing and incendiary shells both of small caliber (in particular of a caliber ranging from 15 mm. to 50 mm.) and of large caliber (75, 105 and 150 mm., for instance).
  • Its chief object is to provide a projectile of this kind which is better adapted to meet the requirements of practice than those made up to this time.
  • the projectile includes at least two shell elements, containing each a charge, disposed one behind the other in tandem-like fashion, the front element including an explosive charge, whereas at least one of the elements includes an incendiary charge, the means for firing said explosive charge being operative in response to impact of said front element on an obstacle whereas the charge in the rear element is arranged to be fired only in response to direct impact of said rear element on an obstacle.
  • the rear element is given an armour piercing power higher than that of the front element.
  • This projectile is essentially constituted by the combination of at least two shell elements I and 2 disposed in tandem-like fashion and at least one of which includes an incendiary charge, the front element I including, anyway, an explosive charge 3 capable of ensuring its destruction when the projectile has passed through a first wall, whereby the rear element 2, preferably made like an armour piercing shell, can then, like an independent projectile, strike a second wall located behind the preceding one, the charge in said rear element being ignited only in response to this second impact.
  • the characteristics (shape, mass, constitutive metal, etc.) that determine the respective perforating powers of the two shell elements for a given muzzle velocity, are chosen at will, but preferably these perforating powers should be greater for the rear element than for the front one, whereby the projectile can pass through walls of increasing resistances, for instance, in the case of a double projectile, first through a mere metal sheet, then through a relatively thick armour plate located behind said metal sheet.
  • front element l is constituted by an ogive-shaped cap secured on the front part of the rear element 2, said cap, which is preferably made of steel, carrying at the front a nose 4 in which is housed a priming pin 5 capable of producing, or at least of facilitating, upon the first impact, the firing of a relay charge 6 which then ensures ignition of the explosive charge 3 and of the incendiary charge 1, preferably located behind the preceding one.
  • the rear element preferably of hard metaLsuch as hardened steel, has a thick point at the front and, behind this point, a shoulder 8 against which the rear edge of cap I can be applied, a cavity being provided in the body of said core to contain the incendiary charge 9, and also possibly an explosive charge, said recess being temporarily kept closed by a rear plug [0.
  • An armor piercing and incendiary shell primarily for use against military targets or the like having a relatively low resistant first wall or the like spaced from a second wall or the like having resistance greater than the first wall, said walls or the like being located in independent spaced relationship with each other, said shell comprising at least two'elements assembled one behind the other in tandem-like fashion with the rear portion of the front shell element contiguous with the front portion of the rear shell element, a charge in each of said elements, said charge being explosive in the front shell element and partly incendiary in at least one of said two elements, means for firing said explosive charge in the front shell element in response to impact of said shell on said first wall, said rear shell element being of an armor-piercing nature and of a higher armor-piercing power than said front shell element, said rear shell element and its charge being sufficiently insensitive to shock so as tosurvive the first impact of said shell upon said first wall, said rear shell element being constituted to survive the explosion occurring upon the first impact and to preclude sympathetic detonation under

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Tents Or Canopies (AREA)

Description

Aug. 21, 1951 w. WEISS 2,564,870
ARMOR PIERCI'NG AND INCENDIARY SHELL Filed July 29, 1947 INVENTOR W/L'L/ 14 5/55,
ATTORNEY Patented Aug. 21 1951 ARMOR-PIERCIN G AND INCENDIARY SHELL Willi Weiss, Vernier, near Geneva, Switzerland, :assignor to Society Brevets Aero-Mecanlques S. A., Geneva, Switzerland, a society of Swltzerland Application July 29, 1947, Serial No. 764,476 In Luxemburg April 2, 1947 3 Claims. 1
The present invention relates to armour piercing and incendiary shells both of small caliber (in particular of a caliber ranging from 15 mm. to 50 mm.) and of large caliber (75, 105 and 150 mm., for instance).
Its chief object is to provide a projectile of this kind which is better adapted to meet the requirements of practice than those made up to this time.
According to a characteristic feature of my invention the projectile includes at least two shell elements, containing each a charge, disposed one behind the other in tandem-like fashion, the front element including an explosive charge, whereas at least one of the elements includes an incendiary charge, the means for firing said explosive charge being operative in response to impact of said front element on an obstacle whereas the charge in the rear element is arranged to be fired only in response to direct impact of said rear element on an obstacle.
Preferably, the rear element is given an armour piercing power higher than that of the front element.
A preferred embodiment of my invention will be hereinafter described with reference to the accompanying drawing, given merely by way of example and in which the only figure shows, in elevation with parts in section and parts out 01f, a small caliber armour piercing and incendiary shell made according to the invention.
This projectile is essentially constituted by the combination of at least two shell elements I and 2 disposed in tandem-like fashion and at least one of which includes an incendiary charge, the front element I including, anyway, an explosive charge 3 capable of ensuring its destruction when the projectile has passed through a first wall, whereby the rear element 2, preferably made like an armour piercing shell, can then, like an independent projectile, strike a second wall located behind the preceding one, the charge in said rear element being ignited only in response to this second impact.
It will thus be possible, according as an incendiary charge is placed either only in the front element I, or only in the rear element, or again in both of these elements, to obtain an incendiary effect either in the space between the first and second walls struck by the projectile, or in the space located behind this second wall, or, finally, in the third case, in both of these two spaces successively.
It should be noted that it may be advantageous, in some cases, to provide the rear element 2, in
addition with an incendiary charge, with an explosive charge in order to ensure its thorough destruction and the dispersion of its splinters behind the last plate that is pierced.
The characteristics (shape, mass, constitutive metal, etc.) that determine the respective perforating powers of the two shell elements for a given muzzle velocity, are chosen at will, but preferably these perforating powers should be greater for the rear element than for the front one, whereby the projectile can pass through walls of increasing resistances, for instance, in the case of a double projectile, first through a mere metal sheet, then through a relatively thick armour plate located behind said metal sheet.
For this purpose and by way of example, front element l is constituted by an ogive-shaped cap secured on the front part of the rear element 2, said cap, which is preferably made of steel, carrying at the front a nose 4 in which is housed a priming pin 5 capable of producing, or at least of facilitating, upon the first impact, the firing of a relay charge 6 which then ensures ignition of the explosive charge 3 and of the incendiary charge 1, preferably located behind the preceding one.
The rear element, preferably of hard metaLsuch as hardened steel, has a thick point at the front and, behind this point, a shoulder 8 against which the rear edge of cap I can be applied, a cavity being provided in the body of said core to contain the incendiary charge 9, and also possibly an explosive charge, said recess being temporarily kept closed by a rear plug [0.
The operation of such a shell takes place in two steps corresponding respectively, the first one, which follows the piercing of a relatively thin sheet, to the destruction of cap land the production of an incendiary effect behind said sheet, and, the second one, which follows the piercing, by rear element 2, of an armour plate located beyond said plate, to the destruction of said rear element with an incendiary efiect behind said armour plate.
In a general manner, while I have, in the above description,disclosed whatIdeem to be a practical and eflicient embodiment of the present invention, it should be well understood that I do not wish to be limited thereto as there might be changes made therein without departing from the principle of the invention as comprehended within the scope of the appended claims.
What I claim is:
1. An armor piercing and incendiary shell primarily for use against military targets or the like having a relatively low resistant first wall or the like spaced from a second wall or the like having resistance greater than the first wall, said walls or the like being located in independent spaced relationship with each other, said shell comprising at least two'elements assembled one behind the other in tandem-like fashion with the rear portion of the front shell element contiguous with the front portion of the rear shell element, a charge in each of said elements, said charge being explosive in the front shell element and partly incendiary in at least one of said two elements, means for firing said explosive charge in the front shell element in response to impact of said shell on said first wall, said rear shell element being of an armor-piercing nature and of a higher armor-piercing power than said front shell element, said rear shell element and its charge being sufficiently insensitive to shock so as tosurvive the first impact of said shell upon said first wall, said rear shell element being constituted to survive the explosion occurring upon the first impact and to preclude sympathetic detonation under the effect of that explosion, and the charge in said rear shell element being fired only as the result of direct impact of said rear shell element upon said second wall.
2. A shell according to claim 1, in which the incendiary charge is contained in the front shell
US764476A 1947-04-02 1947-07-29 Armor-piercing and incendiary shell Expired - Lifetime US2564870A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU269828X 1947-04-02

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US2564870A true US2564870A (en) 1951-08-21

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US (1) US2564870A (en)
BE (1) BE475828A (en)
CH (1) CH269828A (en)
DE (1) DE850417C (en)
GB (1) GB635155A (en)
LU (1) LU28388A1 (en)
NL (1) NL76015C (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2780995A (en) * 1952-07-09 1957-02-12 Bombrini Parodi Delfino S P A Projectile with extra-sensitive head
US3117521A (en) * 1961-01-18 1964-01-14 Woodrow W Reaves Non-hazardous dispersing systems for liquids and volatile solids
US3208385A (en) * 1962-12-24 1965-09-28 Diehl Incendiary shell
US3289588A (en) * 1954-03-16 1966-12-06 Aaron L Hitchens Caliber 50 spotting bullets
FR2356906A1 (en) * 1976-07-01 1978-01-27 Raufoss Ammunisjonsfabrikker PROJECTILE
FR2533309A1 (en) * 1981-03-27 1984-03-23 Raufoss Ammunisjonsfabrikker IMPROVED PROJECTILE WITH MULTIPLE POSSIBILITIES AND METHODS OF MAKING THE PROJECTILE
US4635556A (en) * 1982-03-17 1987-01-13 Rheinmetall Gmbh Penetrator shell with stacked core elements
US20060027128A1 (en) * 2004-02-10 2006-02-09 Hober Holding Company Firearms projectile having jacket runner
EP3736524A1 (en) 2015-08-17 2020-11-11 RUAG Ammotec AG Composite material and corresponding manufacturing method for projectiles

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1125815B (en) * 1960-06-30 1962-03-15 Oerlikon Buehrle Ag Firing device for explosive projectiles, which can be set to either instantaneous or delayed ignition, and head detonator for explosive projectiles to be fired from the firing device
US5526752A (en) * 1994-09-06 1996-06-18 Rockwell International Corporation Weapon for destruction of deeply buried and hardened targets

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US40396A (en) * 1863-10-27 Improvement in explosive projectiles
US1150667A (en) * 1915-02-13 1915-08-17 Henry H C Dunwoody Shell or projectile.
US1347716A (en) * 1919-10-16 1920-07-27 John B Semple Selectively-acting fuse
GB415674A (en) * 1933-04-03 1934-08-30 Metallurg Italiana Soc Improvements in projectiles
US2137436A (en) * 1937-04-30 1938-11-22 George E Barnhart Explosive device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US40396A (en) * 1863-10-27 Improvement in explosive projectiles
US1150667A (en) * 1915-02-13 1915-08-17 Henry H C Dunwoody Shell or projectile.
US1347716A (en) * 1919-10-16 1920-07-27 John B Semple Selectively-acting fuse
GB415674A (en) * 1933-04-03 1934-08-30 Metallurg Italiana Soc Improvements in projectiles
US2137436A (en) * 1937-04-30 1938-11-22 George E Barnhart Explosive device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2780995A (en) * 1952-07-09 1957-02-12 Bombrini Parodi Delfino S P A Projectile with extra-sensitive head
US3289588A (en) * 1954-03-16 1966-12-06 Aaron L Hitchens Caliber 50 spotting bullets
US3117521A (en) * 1961-01-18 1964-01-14 Woodrow W Reaves Non-hazardous dispersing systems for liquids and volatile solids
US3208385A (en) * 1962-12-24 1965-09-28 Diehl Incendiary shell
FR2356906A1 (en) * 1976-07-01 1978-01-27 Raufoss Ammunisjonsfabrikker PROJECTILE
US4353302A (en) * 1976-07-01 1982-10-12 A/S Raufoss Ammunisjonsfabrikker Arrangement in or relating to a projectile
FR2533309A1 (en) * 1981-03-27 1984-03-23 Raufoss Ammunisjonsfabrikker IMPROVED PROJECTILE WITH MULTIPLE POSSIBILITIES AND METHODS OF MAKING THE PROJECTILE
US4444112A (en) * 1981-03-27 1984-04-24 A/S Raufoss Ammunisjonsfabrikker Multi-capability projectile and method of making same
US4635556A (en) * 1982-03-17 1987-01-13 Rheinmetall Gmbh Penetrator shell with stacked core elements
US4697525A (en) * 1982-03-17 1987-10-06 Rheinmetall Gmbh Subcaliber, armor piercing penetrator projectile
US20060027128A1 (en) * 2004-02-10 2006-02-09 Hober Holding Company Firearms projectile having jacket runner
EP3736524A1 (en) 2015-08-17 2020-11-11 RUAG Ammotec AG Composite material and corresponding manufacturing method for projectiles

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Publication number Publication date
NL76015C (en) 1900-01-01
LU28388A1 (en)
DE850417C (en) 1952-09-25
CH269828A (en) 1950-07-31
GB635155A (en) 1950-04-05
BE475828A (en)

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