SE190863C1

SE190863C1 -

Info

Publication number: SE190863C1
Authority: SE
Publication date: 1964-01-01

Description

Uppfinnare: R Jublin, A Zetterblom och L-E Leicht Foreliggande uppfinning hanfor sig till en rotationsstabiliserad rokgranat och liar till andamal en sadan sammansattning air dess laddning att koncentrerad, effektiv rokbelaggning erhalles utan de biverkningar, som Ora de fiesta typer air konventionella granater olampliga for Ovnings- och utbildningsandamal. Inventors: R Jublin, A. Zetterblom and Le Leicht The present invention relates to a rotationally stabilized smoke grenade and to such an composition in its charge that concentrated, effective smoke coating is obtained without the side effects which make most types of conventional grenades unsuitable for practice. and educational purposes.

Flertalet fasta rokbildare (rokmassor) ge en relativt langsam rokutveckling, som gor dem foga lampliga som laddning i en granat. Ett undantag utgor fosfor, som emellertid pa girund air dess rekation med luftens syre ger upphov till en kraftig termisk effekt, varigenom rOken snabbt stiger i hojden och darfor endast delvis kommer till nytta for rokbelaggningen. Dá fosformassan dartill medfor brand-risk och är giftig, är den mindre lamplig, sarskilt for granater som jamval skola anvandas for ovningsandamal. Med vissa: vatskeformiga rokbildare, sa.som svavelsyra och titantetraklorid erhAlles en effektivare rokutveckling. En fullstandig utfyllnad air granatens laddningsrum med vatskeformig rokbildare medfor emellertid en forsamring air granatens rotationsstabilitet, beroende pa att vatskan endast ofullstandigt deltar i granatens rotation. En reducerad laddning medfor a andra: sidan minskad rokbelaggningseffekt. Most solid smoke formers (smoke masses) give a relatively slow smoke development, which makes them suitable as a charge in a grenade. An exception is phosphorus, which, however, in girund air its reaction with the oxygen in the air gives rise to a strong thermal effect, whereby the smoke rises rapidly in height and therefore only partially benefits the smoke coating. As the phosphorus mass therefor carries a fire risk and is toxic, it is less suitable, especially for grenades which should also be used for drilling purposes. With some: liquid smoke formers, such as sulfuric acid and titanium tetrachloride, a more efficient smoke development is obtained. However, a complete filling of the grenade's cargo space with liquid smoke generator causes a deterioration in the rotational stability of the grenade, due to the fact that the liquid only incompletely participates in the rotation of the grenade. A reduced charge means, on the other hand: reduced smoke coating effect.

Det kan mahanda ligga nara till hands att komplettera den otillrackliga vatskeladdningen med en, det resterande laddningsrummet kring vatskeladdningens behallare utfyllande laddning air en konventionell rokmassa. Som ovan framhallits Or emellertid fosfor air olika anledningar olampligt och Ovriga ifragavarande rokmassor, t. ex. hexakloretan och metall eller metallegering foga anvandbara pa grund av alltfor langsam rokutveckling. Att trots kraven pa rotationsstabilitet hos en granat kunna utnyttja en laddning air i och for sig lamplig flytande rokbildare for framstallning air en snabbt utvecklad och effektiv rokbelaggning, far darfor anses vara ett pro blem som hittills icke, i va:rje fall icke utan skadliga biverkningar kunnat losas genom komplettering med fasta rokbildare. It may be obvious to supplement the insufficient water charge with a charge filling the remaining charge space around the water charge container with a conventional smoke mass. As pointed out above, however, phosphorus air for various reasons is inappropriate and Other fumes in question, e.g. hexachloroethane and metal or metal alloy add usable due to too slow smoke evolution. That, despite the requirements for rotational stability of a grenade, being able to use a charge of air per se suitable liquid smoke former for the production of a rapidly developed and efficient smoke coating, may therefore be considered a problem which has not hitherto, in any case not without harmful side effects could be solved by supplementing with solid smoke formers.

Den nu foreslagna lOsningen baserar sig pa upptackten att vissa for raketkrutladdningar brukliga saltkrut air plast och kaliumperklorat utvecklar rok, som visserligen icke motiverar deras anvandning som rokladdning ensamma men som i kombination med r8ken fran en flytande rokbildare ger en godtagbar rokbelaggning. Det for en granat enligt foreliggande uppfinning framst utmarkande är att den innehaller dels en flytande rokbildare, lampligen titantetraklorid, innesluten i en be.hallare som upptager utrymmet narmast kring granatens axel, dels en, det resterande laddningsrummet utfyllande fast rokbildare, bestaende air ett hardot plastkrut med kaliumperklorat som syreavgivare. The now proposed solution is based on the discovery that certain salt powder air plastics and potassium perchlorate customary for rocket powder charges develop smoke, which does not justify their use as smoke charge alone but which in combination with the smoke from a liquid smoke generator provides an acceptable smoke coating. The most distinguishing feature of a grenade according to the present invention is that it contains a liquid smoke former, preferably titanium tetrachloride, enclosed in a container which occupies the space closest to the shell of the grenade, and a solid smoke generator filling the remaining cargo space, consisting of a hard plastic powder. with potassium perchlorate as oxygen scavenger.

Vid en granat air detta slag, pa kant satt forsecld med ett tandror, tandes vid nedslaget plastkrutet och spranges saval vatskebehallare som granatkropp, varvid sprangkraften dock Or sa a-vpassad att uppkomsten air farliga splitter undvikes. Den frail en skim granat utvecklade rOken synes till en borjan harrora sig huvudsakligen: frau plastkrutet. Rokalstringen frau detta har emellertid tillracklig varaktighet Er att forstarka riiken fran den vatskeformiga rokbildaren tillrackligt lange fOr att denna skall hinna utveckla Onskad rokeffekt. Den resulterande rokbelaggningen blir harigenom effektivare On cm hela granatladdningen utgjordes air en konventionell rokmassa. Till den erhallna rabelaggningens effekt bidrar att plastkrutet genom sin forbranning alstrar vattenanga som gar rOken tat Oven vid ringa luftfuktighet. In the case of a grenade of this kind, on the edge sat forsecld with a toothpick, toothed at the impact plastic powder and ran saval liquid container as a grenade body, whereby the jumping force, however, Or so a-vpassad that the emergence of dangerous splinters is avoided. The frail a skim garnet developed rOken seems to a beginning harror mainly: frau plastic powder. The smoke generation from this, however, has a sufficient duration for you to amplify the smoke from the liquid-shaped smoke generator long enough for it to have time to develop the desired smoke effect. The resulting smoke coating thus becomes more efficient. On the entire grenade charge, air was a conventional smoke mass. The effect of the obtained powder coating lies in the fact that the plastic powder, through its combustion, generates water vapor which is smoked even at low humidity.

Genom att anyanda ett harda:t plastkrut erhalles vidare den fordelen att saval behallaren med den inneslutna vatskan som den fasta rokbildaren blir val fixerade i granaten oavsett darpa verkande acceleration och rota- 2•— — tionskrafter, vilket mojliggor en. forhallandevis enkel tillverkning trots de dubbla laddningarna, dvs. sfirskilda atgarder for deras forankring till granatkroppen kunna undvaras. By using a hard plastic powder, the advantage is further obtained that the saline container with the enclosed liquid as the solid smoke former is optionally fixed in the grenade, regardless of the accelerating action and rotational forces, which makes it possible. relatively simple manufacture despite the double charges, ie. separate actions for their anchoring to the grenade body can be dispensed with.

Uppfinningen askadliggores narmare i anslutning till bifogade ritning, som visar en rokgranat i langdsnitt. The invention is further approximated in connection with the accompanying drawing, which shows a smoke grenade in longitudinal section.

Granaten enligt ritningens figur bestar av ett med styrgordel 12 f8rsett hOlje 4, i vars framre ande ãr fastskruvat ett montageror 3, som vid sin. bakdnde är fastskruvat vid en behallare, bestdende av en framre tjockvaggig hylsa 8 och en bakre tunnvaggig hylsa 10. Behallaren 8, är, sa ndr som pa ett litet luftrum 7, fylld med en rOkbildande vatska 11, t. ex. titantetraklorid. Den tjockvaggiga hylsans 8 framre vagg 6 ãr f6rsedd med pafyllningsoppning och forslutningsskruv 5 for denna. I utrymmet mellan granatholjet 4 och den av montageroret 3 och behallaren 8, 10 bildade insatsen dr en fast massa 9 inford. Denna utgores av ett saltkrut bestaende av en hArdad plast samt kaliumperklorat. Lampligen anvandes polyesterplast. Halten kaliumperklorat bör ligga. mellan 65 och 85 %. Med de hogre salthalterna erhalles effektivare rok. Det Or tailor av betydelse att plasten har lag viskositet, sO att mera salt kan inblandas utan att massans gjutbarhet forsvaras. For att Oka massans detonerbarhet kan upp till 10 % kiselgur tillsattas. Utrymmet mellan granatholjet 4 och den. av montageroret 3 och behallaren 8, 10 bildade insatsen Or avtatat me- deist en tatningsring 2 mellan granatholjet 4 och montageroret 3. Det senare Or utformat med sate 1 f8r ett tandror, som Or forsett med detonator for sprangning av granaten och behallaren 8, 10 samt tandning av krutladdningen. The grenade according to the figure of the drawing consists of a casing 4 provided with guide belt 12, in the front end of which a mounting rudder 3 is screwed, which at its. rear end is screwed to a container, consisting of a front thick-walled sleeve 8 and a rear thin-walled sleeve 10. The container 8, is, as in a small air space 7, filled with a smoke-forming liquid 11, e.g. titanium tetrachloride. The front cradle 6 of the thick-rocked sleeve 8 is provided with a filling opening and a closing screw 5 therefor. In the space between the grenade casing 4 and the insert formed by the mounting tube 3 and the container 8, 10, a solid mass 9 is introduced. This consists of a salt powder consisting of a hardened plastic and potassium perchlorate. Lamply, polyester plastic was used. The potassium perchlorate content should be. between 65 and 85%. With the higher salt contents, more efficient smoke is obtained. It is important that the plastic has a low viscosity, so that more salt can be mixed in without defending the pourability of the pulp. To increase the detonability of the pulp, up to 10% diatomaceous earth can be added. The space between the grenade shell 4 and it. of the mounting tube 3 and the container 8, 10 formed the insert Or removed by means of a sealing ring 2 between the grenade oil 4 and the mounting tube 3. The latter Or formed with sate 1 for a toothed tube, which Or provided with a detonator for blasting the grenade and the container 8, 10 and ignition of the powder charge.

Claims

Patent claim:

Rotation-stabilized smoke grenade with toothed tubes, characterized in that it contains a liquid smoke generator, preferably titanium tetrachloride, enclosed in a container (8, 10), which occupies the space closest to the shaft of the grenade, and a filling solid solid filler (remaining smoke generator). 9), consisting of a hardened plastic powder with potassium perchlorate as an oxygen emitter.

Smoke grenade according to claim 1, characterized in that the plastic component of the powder is made of polyester plastic, namely a plastic with low viscosity.

Smoke grenade according to claim 2, characterized in that the powder contains 65-85% potassium perchlorate.

Smoke grenade according to one of the preceding patent claims, map-drawn arm, that the gunpowder contains up to 10% diatomaceous earth. Request publications: