US1862295A - Ammunition - Google Patents

Description

1 corrosive Patented June 7, 1 932 UNITED STATES? PATENT oFFict:

JAMES E. mums, or rmnenroar, comvncrrcur,

ASSIGNOR T REMINGTON ARMS comrm, 11m, A coaroaarron or DELAWARE AMMUNITION No Drawing.

This invention relates torpriming mixtllIGS for ammunition, and particpla'rly to priming mixtures of the such mixtures being characterized by the absence of any ingredients which leave hygroscopic residues in the gun bore, thereby pro moting corrosion and rusting of the bore. A few such mixtures are known at this time and owing to their highly desirable nonproperties they have largely displaced'the older corrosive mixtures.

" The function of a to supply a flame of suflicient intensity and heat to ignite propellant powder, the prim u ing-compositions include two essential ingredients; first,a fuel or substance to be burned,

and second, an oxidizer to furnish oxygen for the combustion of the fuel. A third ingredient, however, is quite universally used, the function of which, stated in very general terms is to initiate the reaction between the oxidizer and the fuel; thus, its essential charaicteristic is that it react under the stimulus of a blow to produce sufficient flame and/or heat to start the combustion of the fuel by the oxidizer.

As such a combustion initiator mercury fuL- minate has been very long period of time. Mercury fulminate, I) however, is undesirable for several reasons.

It is expensive and dangerous to manufac- "ture, and great dilficulty is encountered in securing a product of uniform quality. Furs -ther, mercury fulminate is"of a poisonous l character and injurious'to the health of the .workmen who handle it or priming mixtures containing it. It also presents the disadvantage of amalgamating with the metal of cartridge cases and primer cups, rendering it incapable of use in primer cups fire) shells of'such' alloys as brass, which are otherwise highly desirable for this purpose. a Thepresent invention contemplates a priming mixture which is not onlynon-corrosive but in which undesirable mercury fulminate has been replaced by materials which, while fully efiicient as combustion initiators, can be safely made of, uniform quality, are nonpoisonous and easily handled, and

non-corrosive type,

priming niixture being extensively used for a and (rim' rmit the use for primer cups and fi shells of Applicatioflfiled August 27,1930. Serial no; 47839;.

metals and alloys, such as brass, which are attacked by mercury fulminate.

It has been found that admixtures of certain organic nitro compounds form satisfactory priming mixture sensitizers. For example, good results have been secured by the use of an admixture of a' tetracene, such as guanylnitrosaminoguanyltetracene and a nimay be structurally written as follows:

G H N O and probably the structure A combustion initiator of guanylnitrosamino- ,guanyltetracene and diazodinitrophenol can be used in conjunction with the usual fuels,

such as lead sulphocyanate and/or antimony sulphide and/or calcium silicide, and such non-corrosive oxidizers as barium nltrate, lead nitrate, lead peroxide, etc. -Thus.typ1- cal mixtures are as follows Diazodinitrophenol has the composition v-trated quinone di-azide, such as the -6-di- Atypical mixture in which anylnitrosaminoguanyletracene and diazo mitrophenol are used with lead trinitroresorcinate is:

It is to be understood, however, that these formulas may be greatly varied, both as to proportions and as to the particular oxidize ing and fuel ingredients, the invention being limited only by a broad construction of the appen ed claims.-

What is claimed is: i Y L A priming mixture comprising an ad- 'mixture of guanylnitrosaminoguanyltetracene and diazodinitrophenol. 2; A priming mixture comprising an ad mixture of guanylnitrosaminoguanyltetracene, diazodinitrophenol, an oxidizing ingre-- dient,"and a fuel ingredient. e

3. A priming mixture comprising an admixture of guanylnitrosaminoguanyltetracene, diazodinitrophenol, and lead nitrate.

4. A; priming mixture comprising an admixture of guanylnitrosaminoguanyltetracene, diazodinitrophenol lead nitrate, and v lead sulphocyanate. a 1

5. A priming mixture comprising substantially: a

- DiazodinitrophenoL approximately 37% Guanylnitrosa minoguanyltetracene "approximately 3 Lead nitrate approximately 34 Lead sulphocya-nate n-approximately 7 40 Glass approxirnately ,19

v 6; A priming mixture comprising substantially: r

Diazodinitrophenol; approximately 4% "i5 Guanylnitrosaminoguanyltetrar cene "approximately 1 Lead trinitroresorcinate-approximately 40 Lead nitrate "approximately 29 Lead s'ulph0cyanate r approximately 7 5'0 Glass .3 approximately 19 JAMES E. BURNS.

I plsuA Mznj Bridgeport, Aimunrrioui late ntdated June 7; 1932.- Disclaimer filed Mareh -;.20,. 1935,7by the assignee, -Remington' Arms "r flferebyeiitersthis .2. of l i eliielain la'are in tetracene and diazodinitrophenol. i v 2 A a a g o p ure comprising'an of guanylnitrosaininog uanyl 13 tetraeeiieydiazodinitrophenol, an 'oxidi zingingredient, and a fuel ingredient.