DE217649C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

■ - JVl 217649 CLASS 72 d. GROUP

W. HEBLER in KÜSZNACHT, Switzerland. Storey with a central continuous channel.

Patented in the German Empire on April 11, 1909.

It has already been proposed several times, projectiles in order to achieve a higher To train airspeed and reduction of air resistance tubular and burn it with the help of a sabot. The subject matter of the present invention now forms such a tubular projectile made of steel or similar material, its Walls are so thin and elastic that they

ίο through the fields of the weapon without remaining Shape change can be compressed somewhat, whereby without the use of special guide means, such as copper guide rings, soldered guide bead o good guidance of the projectile both in the new and in a somewhat missed barrel is guaranteed. Since the weight of the bullet compared to the caliber is very is low, a higher initial speed and thus a more stretched one Reached trajectory than with previous bullets.

In the drawing shows

Fig. Ι a longitudinal section of the projectile,

Fig. 2 shows the cross section of a projectile in the barrel and

Fig. 3 shows the projectile in the cartridge.
α is the projectile that consists of a thin, elastic tube, ζ. B. a steel tube, which ^{is sharpened at the front part α 1} and also tapers somewhat conically at the rear part a ² , b is the sleeve neck.

The extraordinarily elongated trajectory of the elastic hollow bullet is achieved by that, due to its very low weight, it has an extremely high initial speed receives, and that it thanks to its sufficient cross-sectional load and its to overcome "the air resistance, it retains its favorable shape, so that the Top speeds turn out to be very high.

The elastic hollow projectile also achieves the purpose, in addition to humane wounds to let the healing of the wounds occur less quickly, so that the wounded will not be able to fight again in as short a time as before.

The diameter of the elastic hollow bullet is so large (Fig..2) that it is still firmly guided between the fields c of the heavily missed barrel. As a result of its thin walls and the resulting elastic compressibility, it is possible to still guide it safely both in the new and in the heavily missed barrel. It is compressed somewhat by the fields c of the barrel d , so that it expands in the trains f and hugs the train profile as closely as possible. However, this clinging to the train profile would not be sufficient to give the projectile the necessary rotation corresponding to the twist of the trains. Rather, it receives this from the sabot g located behind it, which at the same time seals off the projectile channel in a gas-tight manner. The sabot has about the diameter of the heavily shot barrel in the trains and is made of soft metal, e.g. B. made of brass, copper, etc. · It is gas-tight in both the new and the projected barrel and is required to follow the twist of the trains because the fields c

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of the barrel d cut into it. The projectile makes the rotation of the base plate g because the pressure of the powder gases presses the base plate g so tightly against the base ring surface α ^{3 of} the projectile that this is to be regarded as firmly connected to the base plate g due to the friction and the twist of the Trains must follow, just like the floor slab. The base plate is stuck in the neck of the case b. This is then drawn in somewhat at b ¹ , as can be seen from FIG. After leaving the muzzle, the base plate g separates from the projectile α as a result of the air resistance acting from the front. The bottom plate g remains behind and soon falls to the ground, and the floor α continues on its own. Although the elastic hollow projectile hugs the tension profile more or less, it assumes its round shape again after leaving the muzzle of the barrel due to its great elasticity. The elastic hollow projectile made of steel is not suitable for penetrating armor plates, but is especially designed for bombarding living targets.

As the experiments have shown, the elastic hollow projectile can only come from barrels four moves are shot; it cannot be used for runs with three moves, and neither is it for runs with six or seven moves, except when these very narrow fields to have.

The obvious idea was to protect the traction edges of the barrel from wear if necessary To protect the elastic hollow projectile made of steel with a jacket of softer To surround metal, so z. B. the projectile from a steel tube, which is firmly in a very thin copper tube, to be left as a two-part projectile sharper guidance on the trains. However, it has been shown that the thin copper tube - almost cut through by the traction edges when flying through the barrel - after leaving the muzzle flies away in pieces due to centrifugal force and thereby the projectile is made to roll over. The projectile must therefore be made from a single piece direct guidance in the trains.

Claims (1)

Patent claim: Projectile with a central continuous channel, characterized in that it is made of a thin-walled, elastic tube made of steel or similar material, the walls of which are without the shape of the projectile to change permanently, squeeze something through the fields of the barrel, so that it. also im through use extended barrel is still safely guided without the use of special guide means. 1 sheet of drawings.