DE271095C - Light cartridge for projectiles - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

- M 271095 CLASS 72 d. GROUP

FRIED. KRUPP ACT-GES. in ESSEN ₇ Ruhr.

Light cartridge for projectiles. Patented in the German Empire on April 4, 1912.

The invention relates to cartridges for projectiles and aims to such To perfect cartridges so that a slow burning of the flare is guaranteed under all circumstances.

On the drawing \ is an embodiment of the subject invention illustrated, namely shows

ίο Fig. ι the light cartridge and a part of the projectile and the associated cartridge in longitudinal section and

2 shows the section according to 2-2 of FIG. 1, from · ■ seen above.

The cartridge case A, which receives the flare B, is screwed into the bonds of the projectile and protrudes into the propellant charge D.

The flare set B is preceded by a delay set E and a relatively large chamber F upstream of it. This chamber forms the cavity of a sleeve G, which at the same time receives the delay set E and is inserted into the sleeve A in such a way that it is driven out of the sleeve A when the flare is ignited. In the bottom of the can G , fine holes g ^{1 are} provided.

When the shot is fired, propellant gases from the gun charge D penetrate the chamber F through the fine holes g ¹ . Since the gases are strongly throttled through the fine holes, while the projectile is in the gun barrel, only a small, strongly relaxed part of the propellant gases enters chamber F and ignites after it has relaxed further in the chamber, the delay set E, which in turn transmits the fire to the flare B. Here, the bushing G is initially held by the propellant gases in the position in which it closes the sleeve A, but it is driven out by the resulting in inflammation of the flare B gases from the sleeve A, after the projectile has left the gun barrel. The flame of sentence B can then emerge from the case A to the rear, developing a light strip which makes the trajectory of the projectile visible.

As in the cartridge described the inflammation of its contents by under low Pressurized (relaxed) propellant gases take place, i.e. no violent excitation of the delay rate occurs, is a sure guarantee for this given that the delay set - and with it the flare set - does not explode, but slowly burns down. For the same reason, a flare can be used reach, which is only slightly pressed and therefore able to burn brightly and vigorously.

The light cartridge described also offers compared to known light devices, which have a detonator for the flare consisting of parts that can move against each other, the advantage of the greatest possible safety, since such detonators, if not involved Fuses against arming are provided to take effect during transport come and then at the one in the drawing

Arrangement of the light cartridge shown the propellant charge of the gun to explode can bring.

It should also be pointed out that the purpose of the per se known upstream connection of a delay set in front of flare B is to ignite the flare and thus only make the trajectory of the projectile visible,

ίο after the projectile has left the gun barrel and covered part of the flight path. But if you want the flare to be ignited at the beginning of the projectile movement, the delay rate can of course be omitted. The flare is then ignited immediately by the propellant gases from the gun charge. However, the effect of the fine holes g ¹ and the chamber F remains.

Claims (1)

Patent claim: Illuminated cartridge, for projectiles, characterized in that a chamber (F) is upstream of the flare (B) of the cartridge, optionally with the interposition of a delay set (E) , which communicates with the outside of the luminous cartridge through holes (g ¹ ) of such a small cross-section it says that only a small, strongly relaxed part of the propellant gases of the gun charge is able to enter the chamber in order to relax there even further. 1 sheet of drawings.