BE566071A - - Google Patents

Info

Publication number
BE566071A
BE566071A BE566071DA BE566071A BE 566071 A BE566071 A BE 566071A BE 566071D A BE566071D A BE 566071DA BE 566071 A BE566071 A BE 566071A
Authority
BE
Belgium
Prior art keywords
vents
projectile
emi
tube
emission
Prior art date
Application number
Other languages
French (fr)
Priority date (The priority date 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 date listed.)
Publication of BE566071A publication Critical patent/BE566071A/fr

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36Projectiles, 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
    • F42B12/46Projectiles, 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 gases, vapours, powders or chemically-reactive substances
    • F42B12/48Projectiles, 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 gases, vapours, powders or chemically-reactive substances smoke-producing, e.g. infrared clouds

Landscapes

  • 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)

Description

       

  La présente invention vise des perfectionnements au projectile à émission fumigène lors de l'impact,

  
objet du brevet N[deg.] 548.815 du 20 Juih 1956.

  
Ces perfectionnements concernent l'allumage

  
et les.évents d'émission fumigène du projectile suivant l'invention.

  
Le projectile devant fonctionner à l'impact,

  
son énergie à l'arrivée provoque, en particulier sur certains terrains mous ou boueux, une pénétration non négligeable du

  
corps dans le sol.

  
 <EMI ID=1.1> 

  
émettent alors la fumée vers le sol environnant, d'où déperdition de l'effet et filtration par le sol de l'émission

  
colorée. 

  
La présente invention consiste en ce que les évents placés à la tranche arrière du corps de projectile pro-

  
 <EMI ID=2.1> 

  
ou sensiblement parallèle à l'axe longitudinal du projectile. Cette couronne d'évents entoure extérieurement le corps de la fusée de culot et l'empennage. Dès lors, l'émission de fumée à l'impact, même pour un projectile enterré dans sol moue se fait axialement, par la "cheminée" formée par la pénétration du projectile dans le sols avec effet de filtration par le sol réduit au minimum et visibilité maximum de l'effet fumigène.

  
Cette disposition axiale ou quasi&#65533;axiale des évents permet aussi de réaliser l'obturation au stockage des dits évents, avec ouverture automatique au départ du coup, les

  
 <EMI ID=3.1> 

  
tique, par exemple) éjectés axialement par l'inertie au départ du coup.

  
 <EMI ID=4.1> 

  
est ménagée entre l'amorce et la composition fumigène. La composition fumigène est comprimée pour former un bloc séparée gainé extérieurement et fermé à l'arrière, pour des raisons

  
 <EMI ID=5.1> 

  
Les gaz de l'amorce doivent allumer la composition à travers ce diaphragme. On à constaté cependant que le jet des gaz d'amorce était parfois insuffisant pour assurer un allumage correct, à

  
 <EMI ID=6.1> 

  
lumage (nécessaire à l'émission fumigène) avec interposition au diaphragme d'étanchéité, qui se trouve parfois capable de briser le jet d'allumage de l'amorce.

  
Selon la présente invention, un remède est

  
 <EMI ID=7.1>  tube guidant le jet, garantissant la perforation du diaphragme et l'allumage, tout en n'empêchant pas l'émission de fumées par la chambre centrale et les évents disposés en couronne autour du dit tube ou canal.

  
Les autres caractéristiques et avantages de l'invention ressortiront de la description qui va suivre. Il est bien précisé qu'il s'agit uniquement d'un exemple n'ayant

  
 <EMI ID=8.1> 

  
également utilisés sans sortir du cadre de l'invention.

  
Le dessin annexé représente une vue en coupe longitudinale d'un projectile selon l'invention. L'exemple est traité sous forme d'une grenade empennée à fusil, mais il est bien précisé que la présente invention peut s'appliquer, sans sortir de son cadre, à tous autres types de projectiles empennés, ou non, etc...

  
Le projectile se compose essentiellement d'un

  
 <EMI ID=9.1> 

  
 <EMI ID=10.1> 

  
 <EMI ID=11.1> 

  
 <EMI ID=12.1> 

  
Conformément à l'invention, les évents 9 par-  tant de la chambre centrale d'émission 10, sont disposés en

  
 <EMI ID=13.1> 

  
de la couronne d'évents 9 est plus grand que le diamètre d du corps de fusée 2.

  
 <EMI ID=14.1> 

  
rence, obturent au stockage les évents 9 et sont éjectés automatiquement par l'inertie du départ du coup, en dégageant ainsi

  
 <EMI ID=15.1> 

  
Le diaphragme 11 (en celluloïd de préférence)



  The present invention is aimed at improvements to the projectile emitting smoke during impact,

  
subject of patent N [deg.] 548,815 of 20 Juih 1956.

  
These improvements concern the ignition

  
and the smoke emission vents of the projectile according to the invention.

  
The projectile must operate on impact,

  
its energy on arrival causes, in particular on certain soft or muddy grounds, a significant penetration of the

  
body in the ground.

  
 <EMI ID = 1.1>

  
then emit the smoke to the surrounding soil, hence the loss of the effect and filtration by the soil of the emission

  
colorful.

  
The present invention consists in that the vents placed at the rear edge of the projectile body pro-

  
 <EMI ID = 2.1>

  
or substantially parallel to the longitudinal axis of the projectile. This crown of vents externally surrounds the body of the base rocket and the tail. Consequently, the emission of smoke on impact, even for a projectile buried in soft ground, occurs axially, by the "chimney" formed by the penetration of the projectile into the ground with the filtration effect by the ground reduced to a minimum and maximum visibility of the smoke effect.

  
This axial or quasi-axial arrangement of the vents also makes it possible to seal the storage of said vents, with automatic opening at the start of the blow, the

  
 <EMI ID = 3.1>

  
tick, for example) ejected axially by inertia at the start of the stroke.

  
 <EMI ID = 4.1>

  
is provided between the primer and the smoke composition. The smoke composition is compressed to form a separate block sheathed externally and closed at the rear, for reasons

  
 <EMI ID = 5.1>

  
The gases from the primer should ignite the composition through this diaphragm. However, it was found that the jet of the primer gases was sometimes insufficient to ensure correct ignition, at

  
 <EMI ID = 6.1>

  
lighting (necessary for smoke emission) with interposition of the sealing diaphragm, which is sometimes capable of breaking the ignition jet of the primer.

  
According to the present invention, a remedy is

  
 <EMI ID = 7.1> tube guiding the jet, guaranteeing perforation of the diaphragm and ignition, while not preventing the emission of fumes by the central chamber and the vents arranged in a ring around said tube or channel.

  
The other characteristics and advantages of the invention will emerge from the description which follows. It is clearly specified that this is only an example which has

  
 <EMI ID = 8.1>

  
also used without departing from the scope of the invention.

  
The appended drawing represents a view in longitudinal section of a projectile according to the invention. The example is treated in the form of a fletched rifle grenade, but it is clearly specified that the present invention can be applied, without departing from its scope, to all other types of fletched projectiles, or not, etc ...

  
The projectile consists essentially of a

  
 <EMI ID = 9.1>

  
 <EMI ID = 10.1>

  
 <EMI ID = 11.1>

  
 <EMI ID = 12.1>

  
In accordance with the invention, the vents 9 leaving from the central emission chamber 10 are arranged in

  
 <EMI ID = 13.1>

  
of the vent ring 9 is larger than the diameter d of the rocket body 2.

  
 <EMI ID = 14.1>

  
rence, block the vents 9 in storage and are ejected automatically by the inertia of the start of the stroke, thus freeing

  
 <EMI ID = 15.1>

  
Diaphragm 11 (preferably celluloid)


    

Claims (1)

ferme à l'arrière le bloc 7 de composition fumigène. Ce bloc <EMI ID=16.1> closes at the rear block 7 of smoke composition. This block <EMI ID = 16.1> <EMI ID=17.1> <EMI ID = 17.1> Conformément à l'invention, l'amorce 12 de la fusée comporte, en aval, un tube 13 faisant saillie dans la chambre 10. Ce tube guide et canalise le jet d'allumage de l'amorce vers le diaphragme 11 et la composition 7' et garantit le fonctionnement correct, tout en n'empêchant pas l'émission à-travers les évents périphériques arrière 9. According to the invention, the primer 12 of the fuse comprises, downstream, a tube 13 projecting into the chamber 10. This tube guides and channels the ignition jet from the primer to the diaphragm 11 and the composition 7 'and guarantees correct operation, while not preventing emission through the rear peripheral vents 9. REVENDICATIONS 1) Projectile produisant une émission fumigène lors de l'impact, caractérisé en ce que les évents de l'émission fumigè. ne sont placés en couronne à l'extrémité arrière du corps de projectile proprement dit, les axes des dits évents étant parallèles ou sensiblement parallèles à l'axe longitudinal du projectile. 1) Projectile producing a smoke emission upon impact, characterized in that the vents of the smoke emission. are not placed in a ring at the rear end of the projectile body proper, the axes of said vents being parallel or substantially parallel to the longitudinal axis of the projectile. 2) Projectile suivant 1, caractérisé en ce que la couronne d'évents de l'émission fumigène entoure extérieurement la fusée da culot du projectile. 2) Projectile according to 1, characterized in that the crown of smoke emission vents externally surrounds the fuze da base of the projectile. 3) Projectile suivant 1, caractérisé en ce que les évents sont obturés au stockage par des bouchons (en matière plastique de préférence) éjectés automatiquement par l'inertie au moment du départ du coup. 3) Projectile according to 1, characterized in that the vents are closed during storage by plugs (preferably plastic) ejected automatically by inertia at the time of the shot. <EMI ID=18.1> <EMI ID = 18.1> d'allumage est équipée en aval par un canal ou tube de guidage du jet, le dit canal ou tube pénétrant dans la chambre centrale d'allumage et d'émission, mais n'empêchant pas l'écoule... ment des gaz autour du tube ou canal vers les évents en couronne. ignition is fitted downstream by a channel or tube for guiding the jet, said channel or tube entering the central ignition and emission chamber, but not preventing the flow of gases around from the tube or channel to the crown vents.
BE566071D 1955-07-11 BE566071A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1129581T 1955-07-11

Publications (1)

Publication Number Publication Date
BE566071A true BE566071A (en)

Family

ID=9636954

Family Applications (2)

Application Number Title Priority Date Filing Date
BE566071D BE566071A (en) 1955-07-11
BE548815D BE548815A (en) 1955-07-11

Family Applications After (1)

Application Number Title Priority Date Filing Date
BE548815D BE548815A (en) 1955-07-11

Country Status (2)

Country Link
BE (2) BE548815A (en)
FR (2) FR1129581A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU34920A1 (en) * 1956-03-08 Energa
US3831520A (en) * 1958-04-10 1974-08-27 Us Army Biological bomb
WO1988001724A2 (en) * 1986-09-02 1988-03-10 The Secretary Of State For Defence In Her Britanni Projectile

Also Published As

Publication number Publication date
BE548815A (en)
FR1129581A (en) 1957-01-23
FR71510E (en) 1960-01-05

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