DE1194292B - bullet - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .:

Number:
File number:
Registration date:
Display day:

F07f

German class: 72 d- 16/02

1194292
G39213Ic / 72d
November 20, 1963
June 3, 1965

The invention relates to a projectile consisting of a front closed housing that a projectile core, preferably made of tungsten carbide, encased, which is against one in the housing tip arranged core support part. Its purpose is to improve armor-piercing Effect of such projectiles, especially at oblique angles of impact.

According to the invention this is achieved in that the front part of the projectile core is designed as a hemisphere is, which is hingedly inserted into a substantially conical cavity of the core support part is, the housing with a predetermined breaking point of one or more notches on the outside Transition point is provided between its tip and the cylindrical part of the projectile.

It is true that with bullets of a different design, a soft tip part in front of a hard bullet part have known to form the connection point between these two parts spherical, however, no articulation is intended or achieved thereby. Furthermore, it is with such Known shot, the soft part lying in front of the hard part of the projectile with predetermined breaking points to be provided, but here, too, there is no articulated connection, which is the case with the projectile type at the beginning mentioned type a surprising improvement of the armor-piercing effect at oblique angles of impact results.

About the spread of fractures from the front part of the core of the projectile to the rear To prevent area, it is advantageous to divide the core of the projectile in the transverse direction, namely in at least two parts. This division also has advantages in terms of manufacture and material selection.

The core support part of the projectile is expediently "conical" on the outside and has an acute angle less than 35 °.

The invention and its advantages are described in detail below with reference to the drawing, the single figure shows an embodiment of the projectile.

The housing of the projectile body, which in its illustrated embodiment in more detail in the Swedish patent 164467 is shown, consists of an outer housing 1, the one Core 3 includes. The housing 1 also has a base part 2. At the front of the core is a core support part 5 which is suitably made of heavy metal. The front end the core 3 has the shape of a hemisphere, the projectile

Applicant:

Per Gunnar Richard Guldbrand Grenander,

Stockholm;

Sven Emil Philip, Näsbypark (Sweden)

Representative:

Dipl.-Chem. Dr. W. Koch

and Dr.-Ing. R. Glawe, patent attorneys,

Munich 22, Liebherrstr. 20th

Named as inventor:

Per Gunnar Richard Guldbrand Grenander,

Stockholm;

Sven Emil Philip, Näsbypark (Sweden)

Claimed priority:

Sweden November 20, 1962 (12462)

Radius is equal to half the diameter of the core. The hemisphere sits directly swiveling in one conical or hemispherical or otherwise spherical recess in the end of the Core support part 5, the opening facing the core.

At an inclined angle of impact, the bullet hits the armor plate not only with the front one Part of the outer housing, but also with the front part 6 of the core support part, and the front Part of the core support part 5 thereby receives a torque about its center of gravity, that of the armor plate is carried away. In this way, the rear part is given a movement that goes in the direction of is directed towards the armor plate and due to the construction described on the front part of the core 3 is transferred. When it hits the front part of the core becomes 3 rotated towards the armor plate, in a favorable direction, which is a better one Attack and take a shorter route through the armor plate enables. When the front part of the core is given the shape of a hemisphere like it has been described above, in addition to the fact that a hinge-like joint is obtained, the internal volume of the projectile housing to the

509 578/49

exploited in the best possible way. The projectile can thus be filled with the largest possible amount of metal , whereby the joint-like connection is still retained.

The articulation is facilitated by the fact that the outer housing 1 is provided with one or more notches is provided inside or outside, e.g. B. as indicated at 8, are attached. It becomes through it also the propagation of any fractures from the front to the back Part of the housing counteracted.

Another prerequisite for a good effect is that the outer surface of the core support part, which in the illustrated embodiment is conical, essentially has a cone angle, half of which is smaller than the impact angle of the projectile on the armor plate. That angle should advantageously be less than 35 ° to ensure that it has a good armor-piercing effect is obtained at angles of impact of less than 30 °.

The core 3 can advantageously also be divided into one or more parts in the transverse direction, for example along the dividing line 7, thereby preventing the propagation of fractures from the front Part to the rear part is prevented on impact. Such a division simplifies the Construction of the core also in terms of production technology, with the various parts can also consist of different metal compositions. This will make it for example possible to find a suitable balance between hardness, toughness and specific gravity of the various To receive parts.

The projectile according to the invention has been found to have excellent armor-piercing properties has, in addition to the type of construction described above, probably due to the fact are due to the fact that the preload according to Swedish patent 164 467 contributes to the fact that the core doesn't break too quickly.

Claims (3)

Patent claims: 1st floor, consisting of a housing (1) closed at the front, which has a projectile core, preferably made of tungsten carbide, encased against one arranged in the housing tip Supports core support part, characterized in that the front part of the projectile core (3) is designed as a hemisphere which is articulated into a substantially conical shape Cavity of the core support part (5) is used, the housing (1) outside with a Predetermined breaking point from one or more notches (8) at the transition point between its tip and the cylindrical part is provided. 2. Projectile according to claim 1, characterized in that the projectile core (3) in the transverse direction is divided into at least two parts. 3. Projectile according to claim 1 to 2, characterized in that the core support part (5) on the outside is conical and has an acute angle of less than 35 °. Considered publications:
French Patent Nos. 454 822, 405 281; U.S. Patent Nos. 1,089,161,580,570;
Swedish patent specification No. 164 467. 1 sheet of drawings 509 578/49 5.65 © Bundesdruckerei Berlin