EP0110862B1 - Pyrotechnic tracer cartridge - Google Patents

Pyrotechnic tracer cartridge Download PDF

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Publication number
EP0110862B1
EP0110862B1 EP19830890064 EP83890064A EP0110862B1 EP 0110862 B1 EP0110862 B1 EP 0110862B1 EP 19830890064 EP19830890064 EP 19830890064 EP 83890064 A EP83890064 A EP 83890064A EP 0110862 B1 EP0110862 B1 EP 0110862B1
Authority
EP
European Patent Office
Prior art keywords
sealing
section
bullet
channel
cartridge
Prior art date
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
Application number
EP19830890064
Other languages
German (de)
French (fr)
Other versions
EP0110862A1 (en
Inventor
Helmut Dipl.-Ing. Rössler
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.)
Hirtenberger Patronen Zundhutchen und Metallwarenfabrik AG
Original Assignee
Hirtenberger Patronen Zundhutchen und Metallwarenfabrik AG
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.)
Filing date
Publication date
Application filed by Hirtenberger Patronen Zundhutchen und Metallwarenfabrik AG filed Critical Hirtenberger Patronen Zundhutchen und Metallwarenfabrik AG
Publication of EP0110862A1 publication Critical patent/EP0110862A1/en
Application granted granted Critical
Publication of EP0110862B1 publication Critical patent/EP0110862B1/en
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/02—Cartridges, i.e. cases with charge and missile
    • F42B5/067—Mounting or locking missiles in cartridge cases

Definitions

  • the invention relates to a tracer cartridge according to the preamble of claim 1.
  • the water resistance of the cartridges required for military ammunition is generally achieved by applying bitumen lacquer in the case mouth.
  • the bitumen lacquer is usually stripped off when the bullet is inserted into the lacquered sleeve mouth, thereby reducing its sealing effect.
  • the invention relates to a special design of the projectile, which makes it possible to achieve better water resistance without the use of additional sealants, only with the conventional interior coating of the sleeve with bitumen coating, so that it is equivalent to that of soft core ammunition.
  • This sealing effect is achieved according to the invention in that a sealing groove is provided between the gag groove and the rear of the projectile and is filled with lacquer from the sleeve mouth.
  • this sealing groove when the bullet is inserted into the lacquered sleeve, the sealing stack that is still present accumulates, thereby forming a sealing ring running around the bullet.
  • the sealing groove can have any cross section. With regard to the sealing effect and manufacturability, sealing grooves with a trapezoidal, triangular or circular segment-shaped cross section have proven to be particularly favorable.
  • Bullet shapes with grooves are known, but the known grooves serve either as pinch grooves or as a type of labyrinth seal or as relief grooves in the barrel. An interaction of the grooves with lacquer applied in the sleeve mouth is not apparent from the known bullets.
  • a floor of a tracer cartridge according to the invention is shown in partial section in Fig. 1. 2-5 show preferred cross-sectional shapes of the sealing groove.
  • the projectile 1 is provided in the usual way with a gag groove 2 for anchoring the sleeve.
  • a sealing groove 4 is provided between the gag groove 2 and the rear 3 of the projectile 1.
  • the sealing groove 4 has a trapezoidal cross section according to FIGS. 2 and 5, a triangular or circular segment cross section according to FIGS. 3 and 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Gasket Seals (AREA)
  • Farming Of Fish And Shellfish (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Description

Die Erfindung betrifft eine Leuchtspurpatrone gemäß Oberbegriff des Anspruchs 1.The invention relates to a tracer cartridge according to the preamble of claim 1.

Die bei Militärmunition geforderte Wasserdichtigkeit der Patronen wird im allgemeinen durch das Aufbringen von Bitumenlack im Hülsenmund bewerkstelligt.The water resistance of the cartridges required for military ammunition is generally achieved by applying bitumen lacquer in the case mouth.

Bedingt durch die Ausführung des Leuchtspurgeschosses mit einem längeren Zylinderteil und einer relativ geringen Abrundung des. Hecks, wird üblicherweise beim Einsetzen des Geschosses in den lackierten Hülsenmund der Bitumenlack abgestreift und dadurch seine dichtende Wirkung verringert.Due to the design of the tracer bullet with a longer cylinder part and a relatively small rounding of the rear, the bitumen lacquer is usually stripped off when the bullet is inserted into the lacquered sleeve mouth, thereby reducing its sealing effect.

Diesem allgemein bekannten Effekt wird bereits in technischen Lieferbedingungen dadurch Rechnung getragen, daß die zulässigen Fehlerzahlen größer sein dürfen, als bei der zugehörigen Weichkernmunition.This generally known effect is already taken into account in technical delivery conditions in that the permissible number of errors may be greater than with the associated soft core ammunition.

Trotz dieser zulässigen höheren Fehlerzahlen ist es in der Massenproduktion noch immer schwierig, eine entsprechende Qualität zu erreichen, und es wurden daher Verfahren entwickelt, durch zusätzliches Aufbringen von Dichtmitteln nach Fertigstellung der Patronen die Wasserdichtigkeit zu verbessern.Despite these permissible higher numbers of errors, it is still difficult to achieve a corresponding quality in mass production, and methods have therefore been developed to improve the water resistance by additionally applying sealants after the cartridges have been completed.

Diese Dichtmittel zeigen allerdings negative Auswirkungen auf das Hülsenmaterial in der Form, daß oberflächliche Oxydationsvorgänge die optische Qualität beeinflussen, wobei eventuell schwerwiegendere Folgeerscheinungen durch Korrosion nicht ausgeschlossen sind.However, these sealants have negative effects on the sleeve material in the form that superficial oxidation processes influence the optical quality, whereby possibly more serious consequences from corrosion cannot be ruled out.

Die Erfindung bezieht sich auf eine besondere Konstruktionsform des Geschosses, die es ermöglicht, ohne Verwendung von zusätzlichen Dichtmitteln, nur mit der herkömmlichen Innenlackierung der Hülse mit Bitumenlack, eine bessere Wasserdichtigkeit zu erreichen, so daß sie jener der Weichkernmunition gleichzusetzen ist.The invention relates to a special design of the projectile, which makes it possible to achieve better water resistance without the use of additional sealants, only with the conventional interior coating of the sleeve with bitumen coating, so that it is equivalent to that of soft core ammunition.

Dieser Dichteffekt-wird erfindungsgemäß dadurch erreicht, daß zwischen Würgerille und Heck des Geschosses eine Dichtrille vorgesehen ist die mit Lack aus dem Hülsenmund gefüllt ist. In dieser Dichtrille sammelt sich beim Einsetzen des Geschosses in die lackierte Hülse der noch vorhandene Dichtungstack an und formt dadurch einen rund um das Geschoß verlaufenden Dichtungsring.This sealing effect is achieved according to the invention in that a sealing groove is provided between the gag groove and the rear of the projectile and is filled with lacquer from the sleeve mouth. In this sealing groove, when the bullet is inserted into the lacquered sleeve, the sealing stack that is still present accumulates, thereby forming a sealing ring running around the bullet.

Durch das Verschmieren der Dichtrille wird auch die außenballistische Form des Geschosses nicht verändert, so daß diesbezüglich die erfindungsgemäße Ausfürungsform eines Geschosses mit jedem Standard-Leuchtspurgeschoß gleichwertig ist.By smearing the sealing groove, the outer ballistic shape of the projectile is not changed, so that in this regard the embodiment of a projectile according to the invention is equivalent to any standard tracer bullet.

Die Dichtrille kann jeden beliebigen Querschnitt aufweisen. Im Hinblick auf Dichtwirkung und Herstellbarkeit haben sich Dichtrillen mit trapez-, dreieck- oder kreissegmentförmigen Querschnitt als besonders günstig erwiesen.The sealing groove can have any cross section. With regard to the sealing effect and manufacturability, sealing grooves with a trapezoidal, triangular or circular segment-shaped cross section have proven to be particularly favorable.

Es sind zwar Geschoßformen mit Rillen bekannt, jedoch dienen die bekannten Rillen entweder als Kneifrillen oder als eine Art Labyrinthdichtung oder auch als Entlastungsrillen im Lauf. Ein zusammenwirken der Rillen mit im Hülsenmund angebrachtem Lack ist den bekannten Geschossen nicht zu entnehmen.Bullet shapes with grooves are known, but the known grooves serve either as pinch grooves or as a type of labyrinth seal or as relief grooves in the barrel. An interaction of the grooves with lacquer applied in the sleeve mouth is not apparent from the known bullets.

In der Zeichnung ist in Fig. 1 ein Geschoß einer erfindungsgemäßen Leuchtspurpatrone in teilweisem Schnitt dargestellt. Die Fig. 2-5 zeigen bevorzugte Querschnittsformen der Dichtrille.In the drawing, a floor of a tracer cartridge according to the invention is shown in partial section in Fig. 1. 2-5 show preferred cross-sectional shapes of the sealing groove.

Das Geschoß 1 ist in üblicher Weise mit einer Würgerille 2 zur Verankerung der Hülse versehen. Zwischen der Würgerille 2 und dem Heck 3 des Geschosses 1 ist eine Dichtrille 4 vorgesehen. Die Dichtrille 4 hat gemäß den Fig. 2 und 5 trapezförmigen Querschnitt, gemäß den Fig.3 und 4 dreieck- bzw. kreissegmentförmigen Querschnitt.The projectile 1 is provided in the usual way with a gag groove 2 for anchoring the sleeve. A sealing groove 4 is provided between the gag groove 2 and the rear 3 of the projectile 1. The sealing groove 4 has a trapezoidal cross section according to FIGS. 2 and 5, a triangular or circular segment cross section according to FIGS. 3 and 4.

Claims (4)

1. Tracer cartridge, the casing of which is provided with varnish in the region of its mouth and whose bullet has a surrounding crimping channel in its covering for securing the casing edge, characterised in that between the crimping channel (2) and the rear (3) of the bullet a sealing channel (4) is provided which is filled with varnish from the mouth of the casing.
2. A cartridge according to claim 1, characterised in that the sealing channel (4) has a trapezoidal cross-section.
3. A cartridge according to claim 1, characterised in that the sealing channel (4) has a triangular cross-section.
4. A cartridge according to claim 1, characterised that the sealing channel (4) has an arcuate cross-section.
EP19830890064 1982-11-25 1983-04-26 Pyrotechnic tracer cartridge Expired EP0110862B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0428282A AT382235B (en) 1982-11-25 1982-11-25 TRACK CARTRIDGE
AT4282/82 1982-11-25

Publications (2)

Publication Number Publication Date
EP0110862A1 EP0110862A1 (en) 1984-06-13
EP0110862B1 true EP0110862B1 (en) 1986-09-24

Family

ID=3561988

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830890064 Expired EP0110862B1 (en) 1982-11-25 1983-04-26 Pyrotechnic tracer cartridge

Country Status (6)

Country Link
EP (1) EP0110862B1 (en)
AT (1) AT382235B (en)
DE (1) DE3366399D1 (en)
DK (1) DK153107C (en)
NO (1) NO830891L (en)
PT (1) PT76294B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021103150A1 (en) 2021-02-10 2022-08-11 Ruag Ammotec Ag Projectile cartridge, method for manufacturing a projectile cartridge and plant for manufacturing projectile cartridges

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9112578U1 (en) * 1991-10-09 1992-02-13 Schweizerische Eidgenossenschaft vertreten durch die Eidg. Munitionsfabrik Thun der Gruppe für Rüstungsdienste, Thun Small caliber bullet

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE416724C (en) * 1924-06-03 1925-08-13 Giulio Fiocchi Cartridge with rim ignition
FR1157204A (en) * 1956-08-08 1958-05-28 Hispano Suiza Sa Improvements made to explosive projectiles, in particular small caliber for automatic weapons
DE1966993C3 (en) * 1969-02-04 1979-04-26 Dynamit Nobel Ag, 5210 Troisdorf Bullet
DE1905294B2 (en) * 1969-02-04 1976-01-29 Dynamit Nobel Ag, 5210 Troisdorf BULLET
CH511416A (en) * 1969-08-05 1971-08-15 Oerlikon Buehrle Ag Luminous bullet
CH606976A5 (en) * 1975-11-12 1978-11-30 Sarmac Sa
FR2513369A1 (en) * 1981-09-24 1983-03-25 Robert Antoine PROJECTILES FOR HAND AND RAY SHAPED HAND AND SHOULDER GUNS AT VERY HIGH INITIAL SPEEDS, IN ACCORDANCE WITH THE HAGUE CONVENTIONS AND PRODUCING THE SAME NEUTRALIZING EFFECTS AS SHALLOWED OR EXPLOSIVE PROJECTILES. CLAIM: TWO DEVICES, USE.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021103150A1 (en) 2021-02-10 2022-08-11 Ruag Ammotec Ag Projectile cartridge, method for manufacturing a projectile cartridge and plant for manufacturing projectile cartridges

Also Published As

Publication number Publication date
AT382235B (en) 1987-01-26
EP0110862A1 (en) 1984-06-13
DK153107C (en) 1988-10-31
PT76294B (en) 1985-12-27
DK153107B (en) 1988-06-13
ATA428282A (en) 1986-06-15
DK70183A (en) 1984-05-26
NO830891L (en) 1984-05-28
DE3366399D1 (en) 1986-10-30
PT76294A (en) 1983-03-01
DK70183D0 (en) 1983-02-17

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