Classifications

• • C—CHEMISTRY; METALLURGY
  • C06—EXPLOSIVES; MATCHES
  • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
  • C06B41/00—Compositions containing a nitrated metallo-organic compound
  • C06B41/02—Compositions containing a nitrated metallo-organic compound the compound containing lead
  • C06B41/08—Compositions containing a nitrated metallo-organic compound the compound containing lead with a metal azide or a metal fulminate

Definitions

• tassium chlorate has been quite universally "used for this purpose.
• the combustion of this substance leaves a residue of very hygroscopic potassium chloride, which substance solidifies at a comparatively high temperature, and is driven by the high pressures prevailing Within the gun barrel into microscopic fissures and indentations in the surface from which it cannot be removed by mechanical swabbing, or by the universally used non-aqueous gun cleaning compositions.
• the potassium chloride Due to its hygroscopic character, the potassium chloride subsequently absorbs moisture and corrodes the gun barrel, even after it has been cleaned and oiled with great care.
• ingredients must be capable of reacting with extreme rapidity when struck a sharp blow, they must also remain uncombined in an intimate mixture for an indefinite time. They must also be incapable of reacting with the surface metal of their containers. They must likewise remain stable and active for an indefinite time under extreme conditions of temperature and humidity.
• the difiiculty of securing satisfactory priming mixtures is further, augmented by differences in the character of the powder used for diiferent styles'of cartridges.
• a powder which is diflicultto ignite requires a primer acting with a force and intensity which is very undesirable for powder which is more easily ignited. have not possessed the flexibility necessary to readilv adapt them to different powders.
• The" performance of aimixture comprising certain ingredients has been practicallyinvariable, and in order to vary the intensity and duration of therflame or other characteristics of the action, it has been necessary to completely reorganize the mixture.
• the present invention contemplates a priming mixture which is not only positive and certain in action, stable and entirely noncorrosive, but is likewise susceptible of simple and ready control of its combustion characteristics. 7
• priming mixtures include three classes of ingredients a fuel to be burned with heat and flame, an oxidizer'to furnish oxygen for the combustion of the fuel, and a material which is exploded by the impact of the firing pin with suflicient heat and flame to start the reaction between the oxidizer and the fuel.
• Said explosive ingredient will be call-ed the initial explosive or combustion initiator.
• the most widely used combustion initiator was mercury fulminate, and this invention comprises the discovery of combustion initiators which may wholly or in part replacemercury fulminate. Allof the ingredients of the mixture however must be such that no residues remain which will react to corrode the bore. of a v gun barrel.
• the normal lead salt of trinitroresorcine has been found to be desirable.
• This salt may be advantageously used in conjunction with mercury fulminate, a non-corrosive oxidizer such as barium nitrate, and a fuel, such as antimony sulphide.
• the resulting mixture is entirely non-corrosive, and different samples show very unusually uniform powder igniting
• the lead trinitroresorcinate appears to act as a combustion accelerator, or more generally stated, as a, combustion regulator.
• oxidizing ingredient is to be understood as defining that part of a priming mixture having an oxidizing function, whether comprising one material or more than one.
• fuel and fuel ingredient are to be understood as embracing that part of a mixture primarily intended to be burned by the oxygen of the oxidizing ingredient, Whether or not more than one distinct material is included therein.
• a priming mixture for ammunition comprising normal lead trinitroresorcinate, mercury fulminate and a non-corrosive oxidizing ingredient.
• a priming mixture for ammunition comprising normal lead trinitroresorcinate, mercury fulminate and a fuel.
• a priming mixture for ammunition comprising normal lead trinitroresorcinate, mercury fulminate, barium nitrate and an antimony sulphide.
• a priming mixture for ammunition comprising normal lead trinitroresorcinate, mercury fulminate, a non-corrosive oxidizing ingredient, and an antimony sulphide.
• a priming mixture for ammunition comprising normal lead trinitroresoroinate, mercury fulminate and a non-corrosive oxidizing ingredient comprising at least one salt of the group consisting of barium nitrate, lead nitrate and lead chromate.
• a priming mixture for ammunition comprising normal lead trinitroresorcinate, mercury fulminate, a non-corrosive oxidizing ingredient including at least one salt of the group consisting of barium nitrate, lead nitrate and lead chromate, and a fuel ingredient comprising at least one material from the group consisting of antimony sulphide, lead sulphocyanate and copper sulphocyanate.
• a priming mixture for ammunition comprising normal lead trinitroresorcinate, mercury fulminate, barium nitrate, a second non-corrosive oxidizer and a fuel ingredient.
• a priming mixture for ammunition comprising normal lead trinitroresoroinate, mercury fulminate, a non-corrosive oxidizing ingredient including a lead salt, and a suitable fuel ingredient.
• a priming mixture substantially as follows:

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• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Air Bags (AREA)

Priority Applications (3)

Applications Claiming Priority (1)

Publications (1)

Family

ID=22650191

Family Applications (1)

Country Status (3)

• 0
  • BE BE349070D patent/BE349070A/xx unknown
• 1927
  • 1927-03-23 US US177848A patent/US1895752A/en not_active Expired - Lifetime
• 1928
  • 1928-02-15 FR FR649104D patent/FR649104A/fr not_active Expired

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