ES2217972A1 - Smoke generation charge for aerial signaling includes potassium chlorate and lactose with coloring agent, with controlled initiation - Google Patents

Abstract

The smoke generation charge for aerial signaling has potassium chlorate 19-26, lactose 19-26 and coloring agent, e.g. diethylamino azobenzene, 48-55 per cent by weight respectively. Its pyrotechnical signaling system has an initiator, a dextrin, antimony sulfide and potassium chlorate based igniter and a smoke gratings exit sub-system.

Description

Smoke loading and white signaling boat Aerial

Field of the Invention

This invention relates to signaling boats that produce colored smoke and that incorporate new ones smoke compositions and an electrical initiation system. These signaling boats are especially suitable for use in aerial target signage.

Background of the invention

Signal boats are devices that produce color smoke emission, depending on the color of the dye incorporating the fumigant composition. Although the use of dyes have been described previously, especially those anthraquinone derivatives (CA 1 056 688), the use of 1-amino-methylantraquinone and diethylamino-azobenzene. They serve mainly for produce signals, according to a code known by the one that creates them and the He watches them.

A particular type of signaling boats are the signaling boats for aerial targets that are used in missile shooting exercises that simulate the real conditions of objective scope. These boats produce a smoke whose color presents great contrast over the sky to facilitate the visual perception of the shooter.

Description of the invention

The invention provides a new signal boat for aerial targets that incorporates new pyrotechnic charges, a new ignition composition and a smoke output subsystem with a double grid away by a separator and two discs of smoke outlet that embraces the upper rack.

The new compositions useful as cargo Pyrotechnic fumígena are constituted by a mixture of the following components:

- potassium chlorate: 19 to 26% by weight

- lactose: 19 to 26% by weight

- one or more dyes: 48 to 56% by weight

Potassium chlorate reacts with lactose to produce, among others, potassium chloride and carbon dioxide, In addition to heat.

The combustion of these new compositions pyrotechnics produces a cloud of color (white, orange, purple, green, red, blue and yellow) due to the presence of one or various dyes, as well as other products, by vaporization from the combustion zone thanks to the heat released.

The dyes used are:

- 2-methyl anthraquinone

- 1-amino-2 methylantraquinone

- 1,4-diamino-2, 3 dihydroanthraquinone

- 1-methylamino anthraquinone

- 1,4 dimethylamino anthraquinone

- diethylamino-azobenzene

These pyrotechnic compositions can be prepared by mixing the ingredients in the appropriate proportions in a suitable pyrotechnic mixer.

The signaling boat provided by this invention is constituted by an elongated cylindrical housing in tube shape, of a metallic material, which is closed by one of its ends with a top cover and on the other with a lid carrier of the electric ignition system and a hole for allow the entry of the electric cable. Metal housing Contains a cardboard cylinder in order to avoid high housing temperatures.

The signaling boats of this invention they contain a fumed pyrotechnic charge, which provides a smoke of intense color, and the ignition of said load is caused by medium of an internal initiating composition.

Brief description of the drawings

To complete the description above and with in order to help a better understanding of the characteristics of the invention is going to make a detailed description of a preferred embodiment based on a set of drawings that accompany this descriptive report and where, with character merely indicative and not limiting, what has been represented next:

Figure 1 shows a schematic section of the signaling boat of the invention, in which the references Numeric correspond to the following parts and elements.

one.

Disc of sealed

two.

Top higher

3.

Output Discs of smoke

Four.

Grilles

5.

Separator

6.

Load smoked

7.

Tube of lock

8.

Tube of paperboard

9.

Composition of switched on

10.

Match electric

eleven.

Portacerilla

12.

Top lower

Detailed description of a preferred embodiment

Especially preferred compositions are the constituted by 52% of one or several dyes, 24% of potassium chlorate and 24% lactose.

As can be seen in figure 1, the boat It consists of a fumigant load (6) located inside a tube cardboard (8). The fumigant load (6) is in intimate contact with the ignition composition (9) consisting mainly of dextrin, infusory land, antimony sulfide and chlorate potassium, extended on a metal grid. In contact with this ignition composition (9) is the initiator system constituted by an electric match (10) located inside a match holder (11). The boat is completed with two grilles (4) that They allow smoke to pass through and cool it. In the parts bottom and top of the rack located closest to the lid upper (2) two smoke outlet discs (3) are placed that they facilitate the cooling of the smoke that crosses it, disposing also a sealing disc (1).

The sheet metal tube (7) closes with two caps, one the lower cover (12) that performs a closing function and carries the ignition system and other top cover (2), capable of being withdrawal.

The operation of the boat occurs through of an electrical impulse that causes a small flame in the match electric (10) that propagates to the ignition composition (9). TO in turn, it communicates the fire to a fumigant charge (6) which emits smoke that passes through the grid-disk assembly smoke outlet, at which time it cools and then forms a cloud of smoke on the opposite side of the ignition, completing thus the pyrotechnic chain.

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Examples

In a suitable pyrotechnic mixer they are prepared the fumigant mixtures whose compositions are indicated in the Table-I.

TABLE I

I II III IV V SAW VII Component % in weigh Lactose 24 24 24 24 24 24 24 Chlorate potassium 24 24 24 24 24 24 24 Diethylamino-azobenzene 52 26 1,4-dimethylamino anthraquinone 52 26 1-methylamino anthraquinone 52 1-4-diamino-2-3 dihydro anthraquinone 52 1-amino-2-methyl anthraquinone 52 2-methylantraquinone 52

In order to determine the color of the smoke of the Compositions 1, II, III, IV, V, VI and VII previously prepared are they confined and compacted 106 g of each of these charges pyrotechnics in a tube at a density of 1.1 g / cm3.

The ignition of pyrotechnic charges mentioned in the seven cases resulted in a cloud of smoke very dense for a time between 60 and 80 seconds and absence of flame during the entire operating time.

The results related to the color of the cloud are shown in Table-II.

TABLE II

Composition Color I Yellow II blue III Red IV Purple V Orange SAW White VII Green

Described the object of the present invention is declares that what constitutes the essentiality of it is what It is mentioned in the following

Claims (7)

1. Smoke load for use in signaling boats, characterized in that it consists of a mixture of:

to)

between 19% and 26% in potassium chlorate weight

b)

between 19% and 26% in lactose weight

c)

between 48% and 55% in dye weight

2. Smoke filler according to claim 1, characterized in that the dye is 1 amino 2-methylantraquinone 3. Smoke filler according to claim 1, characterized in that the dye is diethylamino-azobenzene. 4. Smoke filler according to claim 1, characterized in that the dye is a mixture of diethylamino-azobenzene and 1,4 diethylaminoanthraquinone. 5. Signaling boat characterized in that it comprises;

to)

a system initiator,

b)

a composition of ignition (9) comprising potassium chlorate, antimony sulfide, dextrin and land of infusoria,

c)

the smoke load (6) of claim 1,

d)

a subsystem of smoke outlet consisting of two grilles (4), separated by a separator (5) and two smoke outlet discs (3) that embrace the upper rack

A signaling canister according to claim 5, characterized in that the initiator system is constituted by an electric match (10) located inside a portacerilla (11). 7. A signaling canister according to claim 5, characterized in that the initiator system, the ignition composition, the fumigant charge, and the smoke exit subsystem are located inside a sheet metal tube (7) closed by two covers (2, 12).