BE1000457A3 - Projectile with precise centre of gravity has core in sections - shaped to fit together with perfect alignment - Google Patents

Projectile with precise centre of gravity has core in sections - shaped to fit together with perfect alignment Download PDF

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Publication number
BE1000457A3
BE1000457A3 BE8700294A BE8700294A BE1000457A3 BE 1000457 A3 BE1000457 A3 BE 1000457A3 BE 8700294 A BE8700294 A BE 8700294A BE 8700294 A BE8700294 A BE 8700294A BE 1000457 A3 BE1000457 A3 BE 1000457A3
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BE
Belgium
Prior art keywords
parts
core
projectile
consist
sections
Prior art date
Application number
BE8700294A
Other languages
French (fr)
Original Assignee
Herstal Sa
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.)
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Publication date
Application filed by Herstal Sa filed Critical Herstal Sa
Priority to BE8700294A priority Critical patent/BE1000457A3/en
Application granted granted Critical
Publication of BE1000457A3 publication Critical patent/BE1000457A3/en

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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
    • F42B12/72Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material
    • F42B12/76Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the casing
    • F42B12/78Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the casing of jackets for smallarm bullets ; Jacketed bullets or projectiles

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

A projectile has a core in sections shaped to fit together with perfect alignment. The end of one section pref. has a spherical, frustoconical, or grooved concavity, and the end of the other section pref. has a corresponding convex shape. The sections are pref. joined together by a layer of glue or by welding. They may be lubricated before they are fitted together.

Description

       

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   Perfectionnements aux projectiles. 



   ---------------------------------- 
L'invention concerne des perfectionnements aux projectiles, plus spécialement aux projectiles dont le noyau est réalisé en au moins deux pièces. 



  Il est évident que, lors de la fabrication de tels projectiles, toutes les précautions sont prises pour que les plans adjacents des pièces constitutives soient parfaitement perpendiculaires à l'axe longitudinal du projectile. 



  Nonobstant ces précautions, la pratique a démontré qu'il est très difficile, sinon .impossible, de réaliser une perpendicularité parfaite. 



  Cette irrégularité, aussi minime soit-elle, a souvent des conséquences fâcheuses. 

 <Desc/Clms Page number 2> 

 



   En effet, le projectile peut alors présenter un balourd qui provoque une détérioration de la précision du projectile. 



   Cette irrégularité peut également provoquer un déplacement relatif transversal entre les parties constitutives du noyau et par la déconcentrer l'énergie cinétique des parties par   rapport à l'axe du projectile lors de l'impact de celui-ci sur   une cible. 



   L'objet de l'invention est donc un projectile ne présentant par les désavantages susmentionnés. 



  A cet effet, l'invention vise un projectile présentant un meilleur alignement des différentes parties du noyau. 



  Un tel projectile consiste substantiellement en des moyens prévus entre les extrémités adjacentes des parties dont est constitué le noyau, ces moyens permettant un alignement parfait et continu desdites parties. 



  Ce projectile permet donc d'augmenter la précision potentielle du projectile en obtenant un balourd minimum, d'une part, et d'augmenter le pouvoir perforant du projectile en réduisant au minimum, lors' de l'impact, le déplacement relatif transversal des différentes parties du noyau, concentrant ainsi l'énergie cinétique de toutes lesdites parties du noyau dans l'axe du 

 <Desc/Clms Page number 3> 

 projectile, tout en facilitant, d'autre part, la fabrication et, ainsi, l'obtention d'un produit moins cher. 



   Afin de mieux faire ressortir lescaractéristiques et avantages de l'invention, quelques exemples de réalisation du projectile sont décrits ci-après avec référence aux dessins annexés, représentant, dans les figures 1 à 5, des variantes d'exécution. 



  Les projectiles 1 selon les figures 1 à 5 sont constitués, d'une manière traditionnelle, par une enveloppe 2 et un noyau 3 constitué de plusieures pièces, en l'occurrence deux, respectivement 4 et 5. Ces pièces ou parties 4 et 5 sont réalisées en des matières différentes dont la plus dure conditionne la forme des surfaces de contact. 



  Selon l'invention, les pièces 4 et 5 s.ont montées, l'une par rapport à l'autre, d'une telle manière que tout déplacement ou glissement relatif transversal de cespièces devient impossible.. 



  Selon l'exemple de la figure 1, un tel montage est obtenu en prévoyant, entre les parties 4 et 5, une couche de colle 6. 

 <Desc/Clms Page number 4> 

 



   Il est évident que la couche de colle peut avantageusement être substituée par soudage des pièces 4 et 5 ou tout autre moyen. 



  Selon les exemples des figures 2 à 5, l'alignement parfait des parties ou pièces 4 et 5 est obtenu par imbrication des extrémités adjacentes 7-8 des pièces successives. A cet effet, ces extrémités présentent des formes correspondantes pouvant s'imbriquer mutuellement. 



  Dans l'exemple de la figure 2, la partie   4   présente une cavité sphérique 9 avec laquelle s'imbrique l'extrémité convexe 10 de la partie 5 du noyau. 



  Les figures 3 et 4 représentent'des exécutions dont lesdites extrémités 7-8 présentent des formes tronconiques femelle 11 et mâle 12. 



  Enfin, dans l'exemple selon la figure 5, les extrémités 7-8 présentent des rainures 13-14 pouvant s'engager les unes dans les autres. 



  Nonobstant que, dans les exemples précédents, les extrémités 7 sont pourvues d'une cavité et les extrémités 8 d'une protubérance pouvant s'engager dans ladite cavité, le 

 <Desc/Clms Page number 5> 

 contraire est également possible. De préférence, c'est la partie la plus dure qui possède ladite cavité. 



  Il est évident que l'invention n'est nullement limitée aux exemples décrits ci-avant et illustrés dans les dessins. En effet, de nombreuses modifications peuvent y être apportées sans, pour autant, sortir du cadre de l'invention.



   <Desc / Clms Page number 1>
 



   Improvements in projectiles.



   ----------------------------------
The invention relates to improvements in projectiles, more particularly in projectiles whose core is made of at least two parts.



  It is obvious that, during the manufacture of such projectiles, every precaution is taken so that the adjacent planes of the constituent parts are perfectly perpendicular to the longitudinal axis of the projectile.



  Notwithstanding these precautions, practice has shown that it is very difficult, if not impossible, to achieve perfect perpendicularity.



  This irregularity, however slight, often has unfortunate consequences.

 <Desc / Clms Page number 2>

 



   Indeed, the projectile can then have an imbalance which causes a deterioration in the precision of the projectile.



   This irregularity can also cause a relative transverse displacement between the constituent parts of the core and by deconcentrating the kinetic energy of the parts with respect to the axis of the projectile during the impact of the latter on a target.



   The object of the invention is therefore a projectile which does not have the above-mentioned disadvantages.



  To this end, the invention relates to a projectile having better alignment of the different parts of the core.



  Such a projectile consists essentially of means provided between the adjacent ends of the parts of which the core is made, these means allowing perfect and continuous alignment of said parts.



  This projectile therefore makes it possible to increase the potential precision of the projectile by obtaining a minimum unbalance, on the one hand, and to increase the perforating power of the projectile by reducing to a minimum, on impact, the transverse relative displacement of the different parts of the nucleus, thus concentrating the kinetic energy of all said parts of the nucleus in the axis of the

 <Desc / Clms Page number 3>

 projectile, while facilitating, on the other hand, the manufacture and, thus, obtaining a cheaper product.



   In order to bring out more clearly the characteristics and advantages of the invention, a few examples of the projectile's embodiment are described below with reference to the appended drawings, representing, in FIGS. 1 to 5, alternative embodiments.



  The projectiles 1 according to FIGS. 1 to 5 are constituted, in a traditional manner, by an envelope 2 and a core 3 made up of several parts, in this case two, respectively 4 and 5. These parts or parts 4 and 5 are made of different materials, the hardest of which conditions the shape of the contact surfaces.



  According to the invention, the parts 4 and 5 s. Are mounted, one relative to the other, in such a way that any relative displacement or transverse sliding of these parts becomes impossible.



  According to the example in FIG. 1, such an arrangement is obtained by providing, between the parts 4 and 5, a layer of adhesive 6.

 <Desc / Clms Page number 4>

 



   It is obvious that the adhesive layer can advantageously be replaced by welding the parts 4 and 5 or any other means.



  According to the examples of Figures 2 to 5, the perfect alignment of the parts or parts 4 and 5 is obtained by nesting the adjacent ends 7-8 of the successive parts. For this purpose, these ends have corresponding shapes which can overlap each other.



  In the example of FIG. 2, the part 4 has a spherical cavity 9 with which the convex end 10 of the part 5 of the core is nested.



  FIGS. 3 and 4 represent executions whose said ends 7-8 have frustoconical female 11 and male 12 shapes.



  Finally, in the example according to FIG. 5, the ends 7-8 have grooves 13-14 which can engage with each other.



  Notwithstanding that, in the previous examples, the ends 7 are provided with a cavity and the ends 8 with a protuberance which can engage in said cavity, the

 <Desc / Clms Page number 5>

 otherwise is also possible. Preferably, it is the hardest part which has said cavity.



  It is obvious that the invention is in no way limited to the examples described above and illustrated in the drawings. Indeed, many modifications can be made to it without, however, departing from the scope of the invention.


    

Claims (8)

Revendications.Claims. 1.- Perfectionnements aux projectiles, caractérisés en ce qu'ils consistent en des moyens (6, 9-10, 11-12,13-14) prévus entre les extrémités adjacentes (7, 8) des parties (4-5) dont est constitué le noyau 3, ces moyens permettant un alignement parfait et continu desdites parties (4-5).  1.- Improvements to projectiles, characterized in that they consist of means (6, 9-10, 11-12,13-14) provided between the adjacent ends (7, 8) of the parts (4-5) of which consists of the core 3, these means allowing perfect and continuous alignment of said parts (4-5). 2.- Perfectionnements selon la revendication 1, caractérisés en ce que les moyens (6) consistent en une couche de colle. 2. Improvements according to claim 1, characterized in that the means (6) consist of a layer of adhesive. 3. - Perfectionnements selon la revendication 1, caractérisés en ce que lesdits moyens consistent' en une liaison des parties (4-5) par soudure. 3. - Improvements according to claim 1, characterized in that said means consist of a connection of the parts (4-5) by welding. 4. - Perfectionnements selon la revendi.cation 1, caractérisés en ce que lesdits moyens (9-10, 11-12, 13-14) consistent en des parties mâle et femelle correspondantes prévues aux extrémités adjacentes 7-8 des parties 4-5 du noyau 3. 4. - Improvements according to revendi.cation 1, characterized in that said means (9-10, 11-12, 13-14) consist of corresponding male and female parts provided at the adjacent ends 7-8 of parts 4-5 of the nucleus 3. 5.- Perfectionnements selon la revendication 1 ou 4, caractérisés en ce'que les moyens (9, 10) sont constitués par des extrémités adjacentes correspondantes (7, 8) des parties (4, 5) du noyau, en l'occurrence une cavité sphérique 9, par exemple dans l'extrémité concernée. <Desc/Clms Page number 7> 5. Improvements according to claim 1 or 4, characterized in that the means (9, 10) consist of corresponding adjacent ends (7, 8) of the parts (4, 5) of the core, in this case a spherical cavity 9, for example in the end concerned.  <Desc / Clms Page number 7>   6. - Perfectionnements selon la revendication 1 ou 4, caractérisés en ce que les moyens (11-12) sont constitués par des extrémités adjacentes correspondantes (7, 8) des parties (4-5) du noyau, en l'occurrence une cavité tronconique (11), par exemple dans l'extrémité concernée (7) de la partie (4) et l'extrémité tronconique (12) de la partie (5) du noyau (3). 6. - Improvements according to claim 1 or 4, characterized in that the means (11-12) are constituted by corresponding adjacent ends (7, 8) of the parts (4-5) of the core, in this case a cavity frustoconical (11), for example in the end concerned (7) of the part (4) and the frustoconical end (12) of the part (5) of the core (3). 7.- Perfectionnements selon la revendication 1 ou 4, caractérisés en ce que les moyens (Il, 12) sont constitués par des extrémités adjacentes correspondantes (7, 8) des parties (4-5) du noyau, en l'occurrence des rainures (13-14) pouvant s'engager les unes dans les autres. 7. Improvements according to claim 1 or 4, characterized in that the means (II, 12) consist of corresponding adjacent ends (7, 8) of the parts (4-5) of the core, in this case grooves (13-14) can engage with each other. 8. - Perfectionnements aux projectiles, substantiellement tels que décrits précédemment et illustrés aux dessins annexés. 8. - Improvements to projectiles, substantially as described above and illustrated in the accompanying drawings.
BE8700294A 1987-03-23 1987-03-23 Projectile with precise centre of gravity has core in sections - shaped to fit together with perfect alignment BE1000457A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BE8700294A BE1000457A3 (en) 1987-03-23 1987-03-23 Projectile with precise centre of gravity has core in sections - shaped to fit together with perfect alignment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE8700294A BE1000457A3 (en) 1987-03-23 1987-03-23 Projectile with precise centre of gravity has core in sections - shaped to fit together with perfect alignment

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD857523S1 (en) 2018-03-16 2019-08-27 Vista Outdoor Operations Llc Cartridge packaging
US10753718B1 (en) 2018-03-16 2020-08-25 Vista Outdoor Operations Llc Colored cartridge packaging

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR372409A (en) * 1906-12-11 1907-04-06 Henry William Holland Projectile
FR383234A (en) * 1906-10-26 1908-02-27 Joseph Hecq Improvements to projectiles for firearms
FR420390A (en) * 1909-12-15 1911-01-28 Paul Mauser Projectile for rifles
GB115476A (en) * 1917-05-08 1918-05-08 Sydney Charles Mote Improvements in or relating to Bullets.
US3348486A (en) * 1964-12-12 1967-10-24 Dynamit Nobel Ag Plastic-lead mushrooming bullet

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR383234A (en) * 1906-10-26 1908-02-27 Joseph Hecq Improvements to projectiles for firearms
FR372409A (en) * 1906-12-11 1907-04-06 Henry William Holland Projectile
FR420390A (en) * 1909-12-15 1911-01-28 Paul Mauser Projectile for rifles
GB115476A (en) * 1917-05-08 1918-05-08 Sydney Charles Mote Improvements in or relating to Bullets.
US3348486A (en) * 1964-12-12 1967-10-24 Dynamit Nobel Ag Plastic-lead mushrooming bullet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD857523S1 (en) 2018-03-16 2019-08-27 Vista Outdoor Operations Llc Cartridge packaging
US10753718B1 (en) 2018-03-16 2020-08-25 Vista Outdoor Operations Llc Colored cartridge packaging

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: S.A. FABRIQUE NATIONALE HERSTAL

Effective date: 19890331