US3277825A - Self-propelled armor-piercing shells - Google Patents

Self-propelled armor-piercing shells Download PDF

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Publication number
US3277825A
US3277825A US408871A US40887164A US3277825A US 3277825 A US3277825 A US 3277825A US 408871 A US408871 A US 408871A US 40887164 A US40887164 A US 40887164A US 3277825 A US3277825 A US 3277825A
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United States
Prior art keywords
shell
base
armor
propelling
core
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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
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US408871A
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English (en)
Inventor
Maillard Bernard
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.)
Brevets Aero Mecaniques SA
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Brevets Aero Mecaniques SA
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Publication of US3277825A publication Critical patent/US3277825A/en
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Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B15/00—Self-propelled projectiles or missiles, e.g. rockets; Guided missiles
    • 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

Definitions

  • the present invention relates to self propelled armor piercing shells, that is to say to shells, fired in particular from a semi-automatic or automatic -gun, including an armor piercing core and a propelling charge intended to give said shells, when they are on their trajectory, a supplementary impulse.
  • the chief object of the present invention is to provide a shell of this type which is well adapted to meet the requirements of practice, in particular concerning their practical range and their armor piercing power.
  • the invention applies to the case of shells including a base of an external diameter substantially equal to the caliber of the shell, said base carrying an armor piercing core which extends frontwardly from said base and is surrounded by an ogive-shaped envelope or cover fixed to said base.
  • the present invention consists essentially in housing a propelling charge in the elongated space extending between said core and said cover, said elongated space communicating with at least one propelling nozzle extending toward the rear of the shell and preferably housed in said base.
  • FIG. 1 is an axial sectional view of a self propelled armor piercing shell made according to a first embodiment of the invention
  • FIG. 2 is a cross sectional view on the line II-II of FIG. 1;
  • FIG. 3 is a view similar to FIG. 1 relating to another embodiment
  • FIG. 4 is a cross sectional view on the line IV-IV of FIG. 3;
  • FIG. 5 shows, in elevational view partly in axial section, a third embodiment of a shell according to the present invention.
  • the following description refers to self propelled armor piercing shells of small caliber intended to be fired from an automatic gun.
  • Such a shell includes an armor piercing core 1 made of a high density material (for instance a tungsten steel) carried by a 'base 2 the external diameter D of which is substantially equal to the caliber of the gun from which the shell is to be fired, and therefore of said shell.
  • base 2 is made of a material of lower density than the core, for instance of a light alloy.
  • Said armor piercing core 1, which extends frontwardly of base 2 is secured axially on said base, for instance by being forced in a frusto-conical housing 2 provided at the front of said base 2.
  • Base 2 carries at least one band 3 intended to cooperate with the rifting of the gun barrel from which the shell is to be fired.
  • the armor piercing core 1 is surrounded by a cover 4, preferably having a thin wall, forming an ogive at the front and fitting at the rear on base 2 to which it is secured in any suitable manner, for instance by screwing, setting or glueing.
  • the armor piercing core 1 is preferably made of 21 caliber D substantially smaller than the external diameter D of base 2.
  • the elongated space of relatively great volume existing between core 1 and cover 4 is filled with the charge 5 serving to propel the shell (this charge being cast or sintered for instance), said charge being placed in position before the assembly of cover 4 with base 2, and the elongated space containing propelling charge 5 is in communication with at least one propelling nozzle located at the rear of the shell and preferably arranged in the base 2 thereof, as it will be hereinafter supposed.
  • the shell according to the present invention therefore has greatly increased practical range and perforating power.
  • FIGS. 1 and 3 there is provided a single propelling nozzle 6, coaxial with base 2 and opening toward the rear thereof.
  • said nozzle is constituted by a separate piece secured (for instance screwed) in a recess provided for this purpose at the rear of base 2.
  • said base is provided with passages, for instance channels 7, converging toward the rear and uniformly distributed for placing the elongated space that contains propelling charge 5 into communication with axial nozzle 6.
  • FIG. 5 there is provided a plurality of (for instance four) peripheral nozzles 6 opening into the side wall of base 2.
  • the outlets of said peripheral nozzles 6, are located ahead of band 3 so that the nozzles are protected against the action of the shell launching gases when said shell is still in the launching gun.
  • the outlets of nozzles 6 may be further protected by plugs (for instance made of a plastic material), not shown, driven out by the propelling charge 5 when said charge is ignited.
  • FIG. 5 leaves the rear portion of base 2 free from nozzles so that it is possible to house a tracer or incendiary composition therein.
  • the means for igniting the propelling charge 5 of the shell must have a very short time of response.
  • the igniting means are positioned at the rear of the shell and arranged so that they are brought into play by the gases propelling the shell in the barrel of the gun.
  • said means in the case of a shell provided with an axial nozzle 6 such as illustrated by FIG. 1, may consist of an initiator composition 8 filling nozzle 6 and the passages 7 leading to said nozzle, said initiator composition forming a protective screen between the propelling charge 5 and the gases serving to launch the shell when the latter is still in the barrel of the gun.
  • FIGS. 3-4 on the one hand and FIG. 5 on the other hand it is also possible, according to other embodiments of the invention illustrated by FIGS. 3-4 on the one hand and FIG. 5 on the other hand, to locate the means for igniting the propelling charge 5 at the front of the shell, where said means are brought into action by a phenomenon occurring at the ogive end of cover 4.
  • shock waves starting from the nose of cover 4 and which produce important temperature rises. Said shock waves may be collected for instance in a resonance tube 8
  • the propelling charge igniting means are disposed at the front of the shell (FIGS. 3-4 and FIG. the inner wall of propelling charge 5 is provided with ignition transmitting conduit 8
  • Said conduits are advantageously disposed along the generatrices of said inner wall and lead to axial nozzle 6 (through passages 7) in the case of FlGS. 34 or to the peripheral nozzles 6,, in the case of FIG. 5.
  • Such ignition conduits permit, on the one hand, of obtaining, as soon as ignition has taken place, a relatively large and constant ignition area, and on the other hand, of ensuring evacuation of the combustion gases from the beginning of the ignition of propelling charge 5.
  • said propelling charge may be chosen of high density and of slow combustion velocity.
  • the shell may further include, as shown by FIGS. 1 and 2, at the front end thereof with an end piece 9 housed in the nose of cover 4.
  • this end piece 9 carries radial partitions 10 fitting against the inner wall of cover 4 and provided, at the level of the front end of core 1 with inclined edges 10 which contribute in centering said core.
  • a self propelled armor piercing shell which comprises, in combination,
  • a shell cover secured to said base surrounding said core and extending fron-twardly there-of to form an ogive
  • propelling nozzle means opening toward the rear of the shell and located in said base, said propelling nozzle means being in communication with said propelling charge.
  • a shell according to claim 1 wherein said propelling nozzle means consist of a single axial nozzle housed in said base.
  • a shell according to claim 1 wherein said propelling nozzle means consist of a row of propelling nozzles formed in said base and opening in the side thereof.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
US408871A 1963-11-07 1964-11-04 Self-propelled armor-piercing shells Expired - Lifetime US3277825A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU44772 1963-11-07
LU44951 1963-12-05

Publications (1)

Publication Number Publication Date
US3277825A true US3277825A (en) 1966-10-11

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Application Number Title Priority Date Filing Date
US408871A Expired - Lifetime US3277825A (en) 1963-11-07 1964-11-04 Self-propelled armor-piercing shells

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US (1) US3277825A (en)van)
BE (1) BE654800A (en)van)
CH (1) CH410686A (en)van)
DE (1) DE1428658A1 (en)van)
ES (1) ES305709A1 (en)van)
GB (1) GB1021416A (en)van)
IL (1) IL22347A (en)van)
LU (2) LU44772A1 (en)van)
NL (1) NL6412979A (en)van)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3349708A (en) * 1964-12-16 1967-10-31 Paget Win Withers Rocket projectile
US3630151A (en) * 1969-10-27 1971-12-28 Singer Co Manually actuated fluidic igniter
US3630150A (en) * 1969-10-27 1971-12-28 Singer Co Actuating mechanism
US3672300A (en) * 1970-11-16 1972-06-27 Us Navy Pressure actuated acoustic signal source
US3754507A (en) * 1972-05-30 1973-08-28 Us Navy Penetrator projectile
US3839094A (en) * 1972-06-30 1974-10-01 Us Army Fluidic thermoelectric generator
US3854401A (en) * 1967-12-01 1974-12-17 Us Army Thermal ignition device
US3863571A (en) * 1968-07-17 1975-02-04 Us Army Fluidic battery activator
US3948184A (en) * 1972-10-10 1976-04-06 Etat Francais Sub-calibre projectile shells
US3956993A (en) * 1974-11-08 1976-05-18 The United States Of America As Represented By The Secretary Of The Army Fluid explosive initiator
US4014485A (en) * 1975-04-14 1977-03-29 Martin Marietta Corporation Gas cooling system for hypersonic vehicle nosetip
US4056060A (en) * 1976-02-23 1977-11-01 The Government Of The United States, As Represented By The Secretary Of The Army Armor plate penetrator
US4063512A (en) * 1966-10-05 1977-12-20 The United States Of America As Represented By The Secretary Of The Air Force Armor penetrating projectile
US4109580A (en) * 1976-02-23 1978-08-29 The United States Of America As Represented By The Secretary Of The Army Armor plate penetrator
US4295425A (en) * 1977-12-06 1981-10-20 Aai Corporation Rocket assisted projectile and cartridge arrangement with pressure relief skirt
US4397240A (en) * 1977-12-06 1983-08-09 Aai Corporation Rocket assisted projectile and cartridge with time delay ignition and sealing arrangement
US4573412A (en) * 1984-04-27 1986-03-04 The United States Of America As Represented By The Secretary Of The Army Plug nozzle kinetic energy penetrator rocket
US4932326A (en) * 1987-05-27 1990-06-12 Serge Ladriere Fiercing projectiles
DE19852626A1 (de) * 1998-11-14 2000-05-18 Diehl Stiftung & Co Artilleriegeschoß
US20060027128A1 (en) * 2004-02-10 2006-02-09 Hober Holding Company Firearms projectile having jacket runner
US20120199035A1 (en) * 2011-02-07 2012-08-09 Frank Ben N Segmenting slug
US8671839B2 (en) 2011-11-04 2014-03-18 Joseph M. Bunczk Projectile and munition including projectile
US20140326157A1 (en) * 2013-09-18 2014-11-06 U.S. Army Research Laboratory ATIN: RDRL-LOC-I Jacketed bullet

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111994309B (zh) * 2019-04-19 2022-03-04 蓝箭航天空间科技股份有限公司 用于运载火箭回收的辅助回收系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB516818A (en) * 1937-06-28 1940-01-12 Sageb Sa Improvements in or relating to projectiles comprising a reaction propulsion device
US2724334A (en) * 1949-12-12 1955-11-22 William C Norton High velocity armor piercing shot
US2968244A (en) * 1948-05-07 1961-01-17 Jr Leo Maas Jet accelerated missile
US2989922A (en) * 1953-02-17 1961-06-27 Marvin H Greenwood Ramjet propulsion device
US3177809A (en) * 1962-07-24 1965-04-13 Budd Co Semi-fixed artillery round
US3199406A (en) * 1961-06-21 1965-08-10 Mb Assoc In-line launching

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB516818A (en) * 1937-06-28 1940-01-12 Sageb Sa Improvements in or relating to projectiles comprising a reaction propulsion device
US2968244A (en) * 1948-05-07 1961-01-17 Jr Leo Maas Jet accelerated missile
US2724334A (en) * 1949-12-12 1955-11-22 William C Norton High velocity armor piercing shot
US2989922A (en) * 1953-02-17 1961-06-27 Marvin H Greenwood Ramjet propulsion device
US3199406A (en) * 1961-06-21 1965-08-10 Mb Assoc In-line launching
US3177809A (en) * 1962-07-24 1965-04-13 Budd Co Semi-fixed artillery round

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3349708A (en) * 1964-12-16 1967-10-31 Paget Win Withers Rocket projectile
US4063512A (en) * 1966-10-05 1977-12-20 The United States Of America As Represented By The Secretary Of The Air Force Armor penetrating projectile
US3854401A (en) * 1967-12-01 1974-12-17 Us Army Thermal ignition device
US3863571A (en) * 1968-07-17 1975-02-04 Us Army Fluidic battery activator
US3630150A (en) * 1969-10-27 1971-12-28 Singer Co Actuating mechanism
US3630151A (en) * 1969-10-27 1971-12-28 Singer Co Manually actuated fluidic igniter
US3672300A (en) * 1970-11-16 1972-06-27 Us Navy Pressure actuated acoustic signal source
US3754507A (en) * 1972-05-30 1973-08-28 Us Navy Penetrator projectile
US3839094A (en) * 1972-06-30 1974-10-01 Us Army Fluidic thermoelectric generator
US3948184A (en) * 1972-10-10 1976-04-06 Etat Francais Sub-calibre projectile shells
US3956993A (en) * 1974-11-08 1976-05-18 The United States Of America As Represented By The Secretary Of The Army Fluid explosive initiator
US4014485A (en) * 1975-04-14 1977-03-29 Martin Marietta Corporation Gas cooling system for hypersonic vehicle nosetip
US4056060A (en) * 1976-02-23 1977-11-01 The Government Of The United States, As Represented By The Secretary Of The Army Armor plate penetrator
US4109580A (en) * 1976-02-23 1978-08-29 The United States Of America As Represented By The Secretary Of The Army Armor plate penetrator
US4295425A (en) * 1977-12-06 1981-10-20 Aai Corporation Rocket assisted projectile and cartridge arrangement with pressure relief skirt
US4397240A (en) * 1977-12-06 1983-08-09 Aai Corporation Rocket assisted projectile and cartridge with time delay ignition and sealing arrangement
US4573412A (en) * 1984-04-27 1986-03-04 The United States Of America As Represented By The Secretary Of The Army Plug nozzle kinetic energy penetrator rocket
US4932326A (en) * 1987-05-27 1990-06-12 Serge Ladriere Fiercing projectiles
DE19852626A1 (de) * 1998-11-14 2000-05-18 Diehl Stiftung & Co Artilleriegeschoß
US20060027128A1 (en) * 2004-02-10 2006-02-09 Hober Holding Company Firearms projectile having jacket runner
US20120199035A1 (en) * 2011-02-07 2012-08-09 Frank Ben N Segmenting slug
US8789470B2 (en) * 2011-02-07 2014-07-29 Olin Corporation Segmenting slug
US8671839B2 (en) 2011-11-04 2014-03-18 Joseph M. Bunczk Projectile and munition including projectile
US20140326157A1 (en) * 2013-09-18 2014-11-06 U.S. Army Research Laboratory ATIN: RDRL-LOC-I Jacketed bullet
US9389052B2 (en) * 2013-09-18 2016-07-12 The United States Of America As Represented By The Secretary Of The Army Jacketed bullet

Also Published As

Publication number Publication date
LU44772A1 (en)van) 1965-05-07
GB1021416A (en) 1966-03-02
DE1428658A1 (de) 1968-12-12
ES305709A1 (es) 1965-03-16
LU44951A1 (en)van) 1965-06-08
BE654800A (en)van) 1965-02-15
IL22347A (en) 1968-06-20
NL6412979A (en)van) 1965-05-10
CH410686A (fr) 1966-03-31

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