US3306199A - Munitions for targets - Google Patents

Munitions for targets Download PDF

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Publication number
US3306199A
US3306199A US402065A US40206564A US3306199A US 3306199 A US3306199 A US 3306199A US 402065 A US402065 A US 402065A US 40206564 A US40206564 A US 40206564A US 3306199 A US3306199 A US 3306199A
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Prior art keywords
bodies
burst
vanes
cord
stowed
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Expired - Lifetime
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US402065A
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Karin Bert
Alan C Baker
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Northrop Grumman Corp
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Northrop Grumman Corp
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    • 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
    • F42B10/02—Stabilising arrangements
    • F42B10/14—Stabilising arrangements using fins spread or deployed after launch, e.g. after leaving the barrel
    • 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
    • F42B12/56—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 for dispensing discrete solid bodies
    • F42B12/58—Cluster or cargo ammunition, i.e. projectiles containing one or more submissiles
    • F42B12/66—Chain-shot, i.e. the submissiles being interconnected by chains or the like

Definitions

  • the present invention relates to airborne stores, and more particularly, to an assembly of munition components adapted to deploy from a compact package.
  • FIGURE 1 is a longitudinal section view of one embodiment of our invention, showing it in assembled form.
  • FIGURE 2 is a right-hand end view of a portion of the outside of the assembly of FIGURE 1, showing a detail of a releasable tab.
  • FIGURE 3 is a perspective view of the assembly in free fall, showing the first events in the deployment thereof.
  • FIGURE 4 is a perspective diagram showing this embodiment in four progressive positions A, B, C, and D after being released from an airplane.
  • FIGURE 5 is a perspective diagram of the same embodiment as FIGURE 4, in continued deployment, showing the next stage thereof.
  • FIGURE 6 is a perspective diagram like FIGURE 5, showing the last stage of deployment.
  • a forward body 1 and an aft body 2 are provided in line with each other, but spaced apart by a cylindrical drum 4.
  • Each body 1 and 2 is composed of an explosive charge 5 of the desired composition at the center and a fragmenting case 6 in this example. Alternately, chemical agents could be used as the payload in either or both bodies.
  • a flexible detonating cord 7 is attached, the cord ends being operatively embedded into the charges of the respective bodies.
  • the detonating cord 7 has a length of about ten feet, for example, although it may be more or less.
  • the excess cord 7 is wound around the outside of the spacer drum 4, utilizing a wedge-shaped space 9 (further shown in FIGURES 4 and 5) in each recessed end of drum 4 to accommodate a short looped portion of cord 7 near each end thereof.
  • the rigid drum 4 may be omitted, and the cord 7 merely coiled between the two bodies 1 and 2 in other arrangements.
  • a housing 10 next encompasses the wound portion of detonating cord 7 and fits against the sloping end surfaces of bodies 1 and 2. Housing 10 is in three longitudinal segments which merely butt against each other at their sides. Four segments may be used if desired.
  • a drag device 11 is installed, comprising six (for example) stabilizing vanes 12 hinged at 14 to an end plate 15 and spring-loaded in an opening direction by torsional springs 16 at the hinges. Vanes 12, when in the closed position, lie forward along the outside of the entire assembly, and are provided with radially inward-projecting lips 17 at their forward ends.
  • a contact fuze assembly 19 is provided, screwing into the forward body 1 at screw threads 20. Arming of this fuze may be accomplished in various ways. Typically a spring-loaded outer cap 21 is held in its compressed position by the lips 17 on vanes 12, the latter being in turn held against the forward body 1 by a circular band 22 fitting into shallow notches 24 of each vane 12. As further shown in FIG- URES 2 and 3, the band 22 is a single piece of springy metal having the ends brought adjacent to each other in the closed band position, it being normally held closed by curved prongs 25 of a wind tab 26 fitting into slots 27 near the respective ends of the band 22.
  • Wind tab 26 has a short curved end piece 29 overlying the joint of the band 22, and a long lever arm 30 folding aft along the assembly in a flush or nearly flush relation with the outside thereof and extending substantially to the aft end.
  • a contact fuze could also operate if located at the rear end of forward body 1.
  • FIGURE 4 An airplane 35 may drop or eject the assembly described herein. Initially, the unit is merely held in a rack or pod 39 with a slight force applied on the wind tab 26 to hold itin place along the surface. In position A, the assembly has just left the airplane and is in the condition shown in FIGURE 1, ready to deploy. In position B, the wind has caught under the arm 30 of wind tab 26 and lifted the same to rotate its prongs 25 out of the slots 27 in band 22, which has then sprung out to release the vanes 12. This is also similar to the position of parts shown in FIGURE 3. Tab 26 and band 22 separate away from the bomb, and cap 21 of fuze assembly 19 is pushed outwardly by coil springs 31 to arm the fuze device.
  • Vanes 12 spring open to the rear quickly, where they become locked by virtue of cam steps 36 catching over the circumference of a spring disk 37, and the unit appears substantially as in position C of FIGURE 4. Note that the vanes 12 are spread out slightly from a fully trailed position, to act as a drag on the aft body 2.
  • the contact actuates firing pin 32, and this immediately sets off the charge of the contact-burst forward body 1, the detonating cord 7, and the charge of the air-burst aft body 2. Only a few microseconds delay is experienced in this series operation. The air-burst action is thus achieved at a definite height determined by the length of detonating cord 7, without electrical circuits, power supplies, mechanisms, or external remote controls of any kind.
  • the aft body 2 it is possible to obtain the same operation without a specific separate assembly of air-drag vanes, by designing the aft body 2 to have built-in size, surface, or shape factors which give it greater air resistance than the forward body 1.
  • the various components of this invention are well known in themselves, i.e., the fuze, explosive bodies, detonating cord, and aerodynamic drag device are typical of standard conventional devices. Their arrangement and adaptation in the present combination is to facilitate deployment of the new invention, a combination air and ground burst munition. It is also readily noticed that the same or similar arrangements can be used in other applications, such as in rockets or mortars for instance, or in non-explosive applications such as the landing or distributing of supplies, leaflets and the like from the forward and/or aft container bodies.
  • a munition or the like comprising a contact-burst body, an air-burst body, a length of flexible detonating cord connected between said bodies, said air-burst body incorporating aerodynamic drag means, said bodies being generally cylindrical With a decreasing taper at the rear of said contact-burst body and at the front of said airburst body, spacer means mounted between said two bodies, said cord being coiled between said bodies when in a stowed condition, a cylindrical housing having a plurality of longitudinal segments fit together edge-to-edge and surrounding said coiled cord, the outside diameter of said housing being susbtantially the same as said bodies, said drag means attached to the rear of said airburst body and having a plurality of vanes foldable forward over said bodies and conforming to the outer shape of said bodies as stowed, and wind-actuated release means surrounding said vanes to normally hold the entire twobody munition assembly in a compact condition as stowed.
  • a munition or the like comprising a contact-burst body, an air-burst body, a length of flexible detonating cord connected between said bodies, aerodynamic drag vanes pivotally attached to the rear of said air-burst body and foldable forward over both said bodies, said vanes having retaining lips at their outer ends fitting against the forward end of said contact-burst body to normally hold said bodies in a compact assembly prior to use, and including releasable means normally holding said drag vanes in the aforesaid assembly position.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Description

Feb. 28, 1967 B. KARIN ETAL 3,306,199
MUNITIONS FOR TARGETS Filed Oct. 5, 1964 4 Sheets-Sheet l INVENTORS:
I. Be/a: Kcvu'n. --i-'- Man c. Baku.
Feb. 28, 1967 B. KARlN ETAL 3,306,199
MUNITIONS FOR TARGETS Filed Oct. 5, 1964 4 Sheets-Sheet 2 INVENTORS But Kalun' ABM C. Baku Fb. 28, 1967 B. KARIN ET AL 3,306,199
MUNITIONS FOR TARGETS Filed Oct. 5, 1964 4 Sheets-Sheet 5 INVENF 01B:
Bent Kcwh. ABan C. Baku (B. KARIN ETAL 3,306,199 MUNITIONS FOR TARGETS Feb, 28, 1967 Filed Oct. 5, 1964 4 Sheets-Sheet 4 I NVENTORS:
ButKa-un Afianc. em
United States Patent 3,306,199 MUNITIONS FOR TARGETS Bert Karin, Fullerton, and Alan C. Baker, La Mirada, Califi, assignors to Northrop Corporation, Beverly Hills, Califl, a corporation of California Filed Oct. 5, 1964, Ser. No. 402,065 2 Claims. (Cl. 1027.4)
The present invention relates to airborne stores, and more particularly, to an assembly of munition components adapted to deploy from a compact package.
It is an object of this invention to provide a system which may be fired, released, or otherwise delivered into a target area at a desired altitude, and which upon landing will comprise a contact-burst part and an air-burst part separated by a predetermined distance, both parts being exploded simultaneously.
Referring to the accompanying drawings, shown by way of illustration and not limitation,
FIGURE 1 is a longitudinal section view of one embodiment of our invention, showing it in assembled form.
FIGURE 2 is a right-hand end view of a portion of the outside of the assembly of FIGURE 1, showing a detail of a releasable tab.
FIGURE 3 is a perspective view of the assembly in free fall, showing the first events in the deployment thereof.
FIGURE 4 is a perspective diagram showing this embodiment in four progressive positions A, B, C, and D after being released from an airplane.
FIGURE 5 is a perspective diagram of the same embodiment as FIGURE 4, in continued deployment, showing the next stage thereof.
FIGURE 6 is a perspective diagram like FIGURE 5, showing the last stage of deployment.
Referring first to FIGURE 1 for a detailed description of one application of the present invention, a forward body 1 and an aft body 2 are provided in line with each other, but spaced apart by a cylindrical drum 4. Each body 1 and 2 is composed of an explosive charge 5 of the desired composition at the center and a fragmenting case 6 in this example. Alternately, chemical agents could be used as the payload in either or both bodies. Between the facing ends of bodies 1 and 2, a flexible detonating cord 7 is attached, the cord ends being operatively embedded into the charges of the respective bodies.
The detonating cord 7 has a length of about ten feet, for example, although it may be more or less. The excess cord 7 is wound around the outside of the spacer drum 4, utilizing a wedge-shaped space 9 (further shown in FIGURES 4 and 5) in each recessed end of drum 4 to accommodate a short looped portion of cord 7 near each end thereof. If desired, the rigid drum 4 may be omitted, and the cord 7 merely coiled between the two bodies 1 and 2 in other arrangements.
A housing 10 next encompasses the wound portion of detonating cord 7 and fits against the sloping end surfaces of bodies 1 and 2. Housing 10 is in three longitudinal segments which merely butt against each other at their sides. Four segments may be used if desired.
At the aft end of aft body 2, a drag device 11 is installed, comprising six (for example) stabilizing vanes 12 hinged at 14 to an end plate 15 and spring-loaded in an opening direction by torsional springs 16 at the hinges. Vanes 12, when in the closed position, lie forward along the outside of the entire assembly, and are provided with radially inward-projecting lips 17 at their forward ends.
At the forward end of forward body 1, a contact fuze assembly 19 is provided, screwing into the forward body 1 at screw threads 20. Arming of this fuze may be accomplished in various ways. Typically a spring-loaded outer cap 21 is held in its compressed position by the lips 17 on vanes 12, the latter being in turn held against the forward body 1 by a circular band 22 fitting into shallow notches 24 of each vane 12. As further shown in FIG- URES 2 and 3, the band 22 is a single piece of springy metal having the ends brought adjacent to each other in the closed band position, it being normally held closed by curved prongs 25 of a wind tab 26 fitting into slots 27 near the respective ends of the band 22.
Wind tab 26 has a short curved end piece 29 overlying the joint of the band 22, and a long lever arm 30 folding aft along the assembly in a flush or nearly flush relation with the outside thereof and extending substantially to the aft end.
Inside the fuze assembly 32, detonator relay 34, and
19, a coil spring 31, firing pin the like, forming a standard fuze assembly, complete the major portions of this invention. A contact fuze could also operate if located at the rear end of forward body 1.
The present application illustrates this invention used in a bomb, for instance. As shown in FIGURE 4, an airplane 35 may drop or eject the assembly described herein. Initially, the unit is merely held in a rack or pod 39 with a slight force applied on the wind tab 26 to hold itin place along the surface. In position A, the assembly has just left the airplane and is in the condition shown in FIGURE 1, ready to deploy. In position B, the wind has caught under the arm 30 of wind tab 26 and lifted the same to rotate its prongs 25 out of the slots 27 in band 22, which has then sprung out to release the vanes 12. This is also similar to the position of parts shown in FIGURE 3. Tab 26 and band 22 separate away from the bomb, and cap 21 of fuze assembly 19 is pushed outwardly by coil springs 31 to arm the fuze device.
Vanes 12 spring open to the rear quickly, where they become locked by virtue of cam steps 36 catching over the circumference of a spring disk 37, and the unit appears substantially as in position C of FIGURE 4. Note that the vanes 12 are spread out slightly from a fully trailed position, to act as a drag on the aft body 2.
The segments of housing 10 can now drop away, as shown in position D, and the detonating cord 7 starts to unwrap. The forward body 1 is falling ahead, causing tension in cord 7 to further unwrap it from drum 4, in FIGURE 5. Drum 4 is thus separated from the assembly, which now becomes fully deployed as in FIGURE 6. The unfolding and separating actions occur rapidly, and the deployed bomb assembly proceeds to the ground.
As it strikes the first object in landing, the contact actuates firing pin 32, and this immediately sets off the charge of the contact-burst forward body 1, the detonating cord 7, and the charge of the air-burst aft body 2. Only a few microseconds delay is experienced in this series operation. The air-burst action is thus achieved at a definite height determined by the length of detonating cord 7, without electrical circuits, power supplies, mechanisms, or external remote controls of any kind.
It is possible to obtain the same operation without a specific separate assembly of air-drag vanes, by designing the aft body 2 to have built-in size, surface, or shape factors which give it greater air resistance than the forward body 1.
It will be noted that the various components of this invention are well known in themselves, i.e., the fuze, explosive bodies, detonating cord, and aerodynamic drag device are typical of standard conventional devices. Their arrangement and adaptation in the present combination is to facilitate deployment of the new invention, a combination air and ground burst munition. It is also readily noticed that the same or similar arrangements can be used in other applications, such as in rockets or mortars for instance, or in non-explosive applications such as the landing or distributing of supplies, leaflets and the like from the forward and/or aft container bodies.
While in order to comply with the statute, the invention has been described in language more or less specific as to structural features, it is to be understood that the invention is not limited to the specific features shown, but that the means and construction herein disclosed comprise one particular forrn of putting the invention into effect, and the invention is therefore claimed in any of its forms or modifications within the legitimate and valid scope of the appended claims.
What is claimed is:
1. A munition or the like comprising a contact-burst body, an air-burst body, a length of flexible detonating cord connected between said bodies, said air-burst body incorporating aerodynamic drag means, said bodies being generally cylindrical With a decreasing taper at the rear of said contact-burst body and at the front of said airburst body, spacer means mounted between said two bodies, said cord being coiled between said bodies when in a stowed condition, a cylindrical housing having a plurality of longitudinal segments fit together edge-to-edge and surrounding said coiled cord, the outside diameter of said housing being susbtantially the same as said bodies, said drag means attached to the rear of said airburst body and having a plurality of vanes foldable forward over said bodies and conforming to the outer shape of said bodies as stowed, and wind-actuated release means surrounding said vanes to normally hold the entire twobody munition assembly in a compact condition as stowed.
2. A munition or the like comprising a contact-burst body, an air-burst body, a length of flexible detonating cord connected between said bodies, aerodynamic drag vanes pivotally attached to the rear of said air-burst body and foldable forward over both said bodies, said vanes having retaining lips at their outer ends fitting against the forward end of said contact-burst body to normally hold said bodies in a compact assembly prior to use, and including releasable means normally holding said drag vanes in the aforesaid assembly position.
References Cited by the Examiner UNITED STATES PATENTS 1,318,926 10/1919 Settle 1027.4 X 2,044,819 6/1936 Taylor 102-4 3,047,259 7/1962 Tatnall et al 102--4 X 3,173,365 3/1965 Battaglini 1027.4
FOREIGN PATENTS 220,324 9/ 1925 Great Britain.
385,595 3/1931 Great Britain.
271,331 2/1930 Italy.
BENJAMIN A. BORCHELT, Primary Examiner. SAMUEL W. ENGLE, Examiner.

Claims (1)

1. A MUNITION OR THE LIKE COMPRISING A CONTACT-BURST BODY, AN AIR-BURST BODY, A LENGTH OF FLEXIBLE DETONATING CORD CONNECTED BETWEEN SAID BODIES, SAID AIR-BURST BODY INCORPORATING AERODYNAMIC DRAG MEANS, SAID BODIES BEING GENERALLY CYLINDRICAL WITH A DECREASING TAPER AT THE REAR OF SAID CONTACT-BURST BODY AND AT THE FRONT OF SAID AIRBURST BODY, SPACER MEANS MOUNTED BETWEEN SAID TWO BODIES, SAID CORD BEING COILED BETWEEN SAID BODIES WHEN IN A STOWED CONDITION, A CYLINDRICAL HOUSING HAVING A PLURALITY OF LONGITUDINAL SEGMENTS FIT TOGETHER EDGE-TO-EDGE AND SURROUNDING SAID COILED CORD, THE OUTSIDE DIAMETER OF SAID HOUSING BEING SUBSTANTIALLY THE SAME AS SAID BODIES, SAID DRAG MEANS ATTACHED TO THE REAR OF SAID AIRBURST BODY AND HAVING A PLURALITY OF VANES FOLDABLE FORWARD OVER SAID BODIES AND CONFORMING TO THE OUTER SHAPE OF SAID BODIES AS STOWED, AND WIND-ACTUATED RELEASE MEANS SURROUNDING SAID VANES TO NORMALLY HOLD THE ENTIRE TWOBODY MUNITION ASSEMBLY IN A COMPACT CONDITION AS STOWED.
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3416448A (en) * 1966-07-05 1968-12-17 Army Usa Control system for stand-off functioning of a projectile in flight over a target area
US4257495A (en) * 1978-05-10 1981-03-24 National Research Development Corporation Damping device
US4750426A (en) * 1986-07-09 1988-06-14 Diehl Gmbh & Co. Submunition
US4913002A (en) * 1985-09-13 1990-04-03 Fellows Thomas G Automatic continuously variable transmission of the toroidal-race rolling-traction type
US4989517A (en) * 1982-03-29 1991-02-05 The United States Of America As Represented By The Secretary Of The Army Tandem bomblet
EP0902250A3 (en) * 1997-09-13 2000-09-27 Diehl Stiftung & Co. Mobile body for the destruction of underwater structures
US11304413B2 (en) * 2008-06-25 2022-04-19 Brett E. Bunker Pest control devices, methods, and apparatus

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1318926A (en) * 1919-10-14 settle
GB220324A (en) * 1923-08-08 1925-09-03 Bohdan Pantoflicek Improvements in or relating to explosive projectiles
GB385595A (en) * 1930-04-05 1932-12-29 Mario Peviani Improvements in or relating to aerial bombs
US2044819A (en) * 1933-10-27 1936-06-23 James G Taylor Projectile
US3047259A (en) * 1959-11-25 1962-07-31 George J Tatnall Speed brake retarding mechanism for an air-dropped store
US3173365A (en) * 1962-05-18 1965-03-16 Bruno M Battaglini Composite bomb

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1318926A (en) * 1919-10-14 settle
GB220324A (en) * 1923-08-08 1925-09-03 Bohdan Pantoflicek Improvements in or relating to explosive projectiles
GB385595A (en) * 1930-04-05 1932-12-29 Mario Peviani Improvements in or relating to aerial bombs
US2044819A (en) * 1933-10-27 1936-06-23 James G Taylor Projectile
US3047259A (en) * 1959-11-25 1962-07-31 George J Tatnall Speed brake retarding mechanism for an air-dropped store
US3173365A (en) * 1962-05-18 1965-03-16 Bruno M Battaglini Composite bomb

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3416448A (en) * 1966-07-05 1968-12-17 Army Usa Control system for stand-off functioning of a projectile in flight over a target area
US4257495A (en) * 1978-05-10 1981-03-24 National Research Development Corporation Damping device
US4989517A (en) * 1982-03-29 1991-02-05 The United States Of America As Represented By The Secretary Of The Army Tandem bomblet
US4913002A (en) * 1985-09-13 1990-04-03 Fellows Thomas G Automatic continuously variable transmission of the toroidal-race rolling-traction type
US4750426A (en) * 1986-07-09 1988-06-14 Diehl Gmbh & Co. Submunition
EP0902250A3 (en) * 1997-09-13 2000-09-27 Diehl Stiftung & Co. Mobile body for the destruction of underwater structures
US11304413B2 (en) * 2008-06-25 2022-04-19 Brett E. Bunker Pest control devices, methods, and apparatus

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