US2976136A - Composition for tracer unit - Google Patents

Composition for tracer unit Download PDF

Info

Publication number
US2976136A
US2976136A US795310A US79531059A US2976136A US 2976136 A US2976136 A US 2976136A US 795310 A US795310 A US 795310A US 79531059 A US79531059 A US 79531059A US 2976136 A US2976136 A US 2976136A
Authority
US
United States
Prior art keywords
tracer
composition
igniter
streak
projectile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US795310A
Inventor
Raymond H Heiskell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US2899291D priority Critical patent/US2899291A/en
Application filed by Individual filed Critical Individual
Priority to US795310A priority patent/US2976136A/en
Application granted granted Critical
Publication of US2976136A publication Critical patent/US2976136A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C15/00—Pyrophoric compositions; Flints
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/38—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information of tracer type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S149/00—Explosive and thermic compositions or charges
    • Y10S149/11—Particle size of a component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S149/00—Explosive and thermic compositions or charges
    • Y10S149/11—Particle size of a component
    • Y10S149/114—Inorganic fuel

Definitions

  • This invention relates to a tracer ammunition unit especially adapted for use in 20 mm. projectile and more particularly, it concerns the combination of an improved sensitive tracer composition, and a slow burning nonflash igniter composition therefor.
  • the present invention is especially adapted to obviate the above mentioned flash and bright streak of light occurring at the gun muzzle as the projectile is fired therefrom, and also producing a tracer streak of sufiicient intensity to permit the gunner or fire director to observe the tracer streak and follow the flight of the projectile either at night or during the day.
  • composition for a .tracer unit for a projectile comprising a new and improved light emitting trace composition including a slow burning non-flash igniter composition therefor.
  • Another object is to provide a new and improved igniter composition for a tracer unit for a projectile adapted to delay ignition of a new and improved tracer composition for a predetermined period of time after the projectile has been fired from a gun and traveled a substantial distance from the muzzle thereof and in which the tracer composition, when ignited by the igniter composition, produces a tracer streak of sufficiently bright intensity to permit the gunner to follow the flight of the projectile either at night or during the day as the projectile travels along a trajectory.
  • the new and improved slow burning non-flash or dark igniter composition for the tracer unit is composed of a mixture of barium peroxide, antimony sulfide, magnesium, and a Inbricant of graphite, and a sensitive light emitting tracer composition composed of a mixture of magnesium, strontium nitrate, strontium tartrate, hexachlorobenzene, charcoal, and a binder of stearic acid.
  • each of the aforesaid mixtures is mixed separately and pressed or moulded into pellet form thereby to form a slow burning non-flash igniter composition pellet and a sensitive light emitting tracer composition pellet, the tracer unit being completed by pressing the igniter pellet onto the tracer pellet and thereafter coating the entire tracer-igniter unit with a moistureproof paint such, for example, as waterproof paint of the type known to those skilled in the art as Bakelite Varnish No. XV-1657.
  • a moistureproof paint such, for example, as waterproof paint of the type known to those skilled in the art as Bakelite Varnish No. XV-1657.
  • the igniter composition of the present invention may be obtained by moulding a mixture of the following ingredients, the ingredients being proportioned by percentage by weight such, for example, as 7678.4% barium peroxide, ISA-23% antimony sulfide, 0-2.2% magnesium, and .1-1% of graphite.
  • the ingredients of the igniter composition it has been found that the best results are obtained when the barium peroxide, antimony sulfide, and magnesium are of such proportions as to pass through a US. standard sieve, mesh size 200 and the graphite is of such proportion as to pass through a US. standard sieve, mesh size 325.
  • igniter unit of the present invention having been indicated in a general way, the following specific example of the igniter composition thereof is illustrated together with the mesh size of the sieve used.
  • ingredients of the igniter composition are given in percentages by weight.
  • the tracer composition of the present invention may be obtained by moulding a mixture of the following ingredients, the ingredients being proportioned by percentage by weight such, for example, as 31.838% magnesium, 30.9-38% strontium nitrate, 1227.3% strontium tartrate, 4.6-5 hexachlorobenzene, 2O.9% charcoal, and 4.54% stearic acid.
  • the ingredients being proportioned by percentage by weight such, for example, as 31.838% magnesium, 30.9-38% strontium nitrate, 1227.3% strontium tartrate, 4.6-5 hexachlorobenzene, 2O.9% charcoal, and 4.54% stearic acid.
  • Sensitive light-emitting tracer composition for both daylight and night use a small percentage of hexachlorobenzene was added to the tracer mixture to improve this color effect of the trace streak and it was also found that by .the addition of a small amount of pulverized charcoal to the tracer composition the ignition thereof was improved, as the addition of the charcoal when mixed with the other fine powder ingredients of a c M! the tracercomposition in the aforesaid proportions decreased the compressibility of the entire mixture, thus making it more porous and improving the ignition thereof.
  • the ignition sensitivity characteristics thereof proved entirely satisfactory and the combustion thereof was sufficiently retarded to ignite the tracer composition in predetermined time delayed relation with respect to ignition of the igniter composition. It was also found that by maintaining the particle size of the antimony sulfide smaller than 200 mesh size, the frictional sensitivity of the particles of which the igniter composition is composed is sufiiciently low to prevent premature detonation of the mixture. Furthermore, proper functioning of the,
  • tracer unit is obtained when the tracer unit is loaded into the tracer cavity arranged in the projectile with a serrated ram at .a pressure, such, for example, as from 30,000 46,000 p.s.i.
  • a composition for a. tracer unit for a projectile has been compounded and constructed in which the igniter composition thereof is adapted to delay ignition of the light emitting tracer composition thereof for a predetermined period of time after ignition of the igniter composition as the projectile is fired from a gun whereby ignition of the tracer composition will occur a substantial distance from the muzzle of the gun such, for example, as from 75 to 125 yards, thereby preventing area illumination of the battery, and also preventing the flash upon ignition of the trace composition from producing a blinding effect on the gunner.
  • the present invention is adapted to improve the daylight visibility of the tracer streak emitted from thetracer composition, such tracer streak being sufficiently bright to permit the gunner to observe and fol-.
  • a slow-burning, non-flash igniter mixture for a tracer unit consisting essentially of 76 to 78.4% barium peroxide, from 18.4 to 23% antimony sulphide, up to 2.2% magnesium, and containing an amount up to 1% graphite.
  • a slow-burning, non-flash igniter composition for a tracer unit consisting essentially of 76 to 78.4% barium peroxide, from 18.4 to 23% antimony sulphide, and up to 2.2% magnesium.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Description

March 21, 1961 R. H. HEISKELL 2,976,136
COMPOSITION FOR TRACER UNIT Original Filed June 29 1948 {1- WATERPROOF V PAINT IGNITER COMPOSITION INVENTOR. R. H. HEISKELL 2,976,136 Patented Mar. 21, 1961 COMPOSITION FOR TRACER UNIT Raymond H. Heiskell, 517 S. Alameda Blvd, Compton, Calif.
Original application June 29, 1948, Ser. No. 35,960, now Patent No. 2,899,291, dated Aug. 11, 1959. Divided and this application Feb. 10, 1959, Ser. No. 795,310
2 Claims. (Cl. 52-2) (Granted under Title 35, US. Code (1952), see. 266) This invention relates to a tracer ammunition unit especially adapted for use in 20 mm. projectile and more particularly, it concerns the combination of an improved sensitive tracer composition, and a slow burning nonflash igniter composition therefor.
This application is a division of my copending application Serial No. 35,960, filed June 29, 1948, now US. Patent No. 2,899,291, issued August 11, 1959.
Heretofore tracer ammunition used by' our Armed Forces proved unsatisfactory especially when used in night encounters, in that, under conditions of darkness the flash therefrom upon ignition of the tracer composition by the igniter composition caused excessive flash and too much light streak at the muzzle of the gun, thus illuminating and disclosing the position of the gun to the enemy and confusing and misleading the gunner or fire director when aiming at the gun is accomplished by observation of the tracer streak. Such tracer ammunition also proved not altogether satisfactory when used in day encounters inasmuch as when the tracer composition was ignited the tracer streak emitted therefrom was of insufiicient intensity to permit the fire director to follow the tracer streak as the projectile traveled along a trajectory.
The present invention is especially adapted to obviate the above mentioned flash and bright streak of light occurring at the gun muzzle as the projectile is fired therefrom, and also producing a tracer streak of sufiicient intensity to permit the gunner or fire director to observe the tracer streak and follow the flight of the projectile either at night or during the day.
Accordingly, it is an object of the invention to provide a composition for a .tracer unit for a projectile comprising a new and improved light emitting trace composition including a slow burning non-flash igniter composition therefor.
Another object is to provide a new and improved igniter composition for a tracer unit for a projectile adapted to delay ignition of a new and improved tracer composition for a predetermined period of time after the projectile has been fired from a gun and traveled a substantial distance from the muzzle thereof and in which the tracer composition, when ignited by the igniter composition, produces a tracer streak of sufficiently bright intensity to permit the gunner to follow the flight of the projectile either at night or during the day as the projectile travels along a trajectory.
Other objects and advantages of the present invention will become more apparent during the course of the following description taken in connection with the accompanying drawing.
In accordance with the present invention the new and improved slow burning non-flash or dark igniter composition for the tracer unit is composed of a mixture of barium peroxide, antimony sulfide, magnesium, and a Inbricant of graphite, and a sensitive light emitting tracer composition composed of a mixture of magnesium, strontium nitrate, strontium tartrate, hexachlorobenzene, charcoal, and a binder of stearic acid.
Referring to the drawing, each of the aforesaid mixtures is mixed separately and pressed or moulded into pellet form thereby to form a slow burning non-flash igniter composition pellet and a sensitive light emitting tracer composition pellet, the tracer unit being completed by pressing the igniter pellet onto the tracer pellet and thereafter coating the entire tracer-igniter unit with a moistureproof paint such, for example, as waterproof paint of the type known to those skilled in the art as Bakelite Varnish No. XV-1657.
The igniter composition of the present invention may be obtained by moulding a mixture of the following ingredients, the ingredients being proportioned by percentage by weight such, for example, as 7678.4% barium peroxide, ISA-23% antimony sulfide, 0-2.2% magnesium, and .1-1% of graphite. In preparing the ingredients of the igniter composition it has been found that the best results are obtained when the barium peroxide, antimony sulfide, and magnesium are of such proportions as to pass through a US. standard sieve, mesh size 200 and the graphite is of such proportion as to pass through a US. standard sieve, mesh size 325.
Now, the nature and purpose of the igniter unit of the present invention having been indicated in a general way, the following specific example of the igniter composition thereof is illustrated together with the mesh size of the sieve used. In this example the ingredients of the igniter composition are given in percentages by weight.
Slow burning non-flash igniter composition The tracer composition of the present invention may be obtained by moulding a mixture of the following ingredients, the ingredients being proportioned by percentage by weight such, for example, as 31.838% magnesium, 30.9-38% strontium nitrate, 1227.3% strontium tartrate, 4.6-5 hexachlorobenzene, 2O.9% charcoal, and 4.54% stearic acid. In preparing the ingredients of the tracer composition, it has been found that the best results are obtained when all the ingredients comprising the tracer composition are of such proportions as to pass through a U8. standard sieve, mesh size 100.
Now, the nature and purpose of the tracer unit of the present invention having been indicated in a general way, the following specific example of the tracer composition thereof is illustrated together with the mesh size of the sieve used.
Sensitive light-emitting tracer composition for both daylight and night use, a small percentage of hexachlorobenzene was added to the tracer mixture to improve this color effect of the trace streak and it was also found that by .the addition of a small amount of pulverized charcoal to the tracer composition the ignition thereof was improved, as the addition of the charcoal when mixed with the other fine powder ingredients of a c M! the tracercomposition in the aforesaid proportions decreased the compressibility of the entire mixture, thus making it more porous and improving the ignition thereof.
In preparing the igniter composition it was found that when the barium peroxide, antimony sulfide, and magnesium were mixed with the graphite in the aforesaid proportions, the ignition sensitivity characteristics thereof proved entirely satisfactory and the combustion thereof was sufficiently retarded to ignite the tracer composition in predetermined time delayed relation with respect to ignition of the igniter composition. It was also found that by maintaining the particle size of the antimony sulfide smaller than 200 mesh size, the frictional sensitivity of the particles of which the igniter composition is composed is sufiiciently low to prevent premature detonation of the mixture. Furthermore, proper functioning of the,
tracer unit is obtained when the tracer unit is loaded into the tracer cavity arranged in the projectile with a serrated ram at .a pressure, such, for example, as from 30,000 46,000 p.s.i.
From the foregoing description it will be understood that a composition for a. tracer unit for a projectile has been compounded and constructed in which the igniter composition thereof is adapted to delay ignition of the light emitting tracer composition thereof for a predetermined period of time after ignition of the igniter composition as the projectile is fired from a gun whereby ignition of the tracer composition will occur a substantial distance from the muzzle of the gun such, for example, as from 75 to 125 yards, thereby preventing area illumination of the battery, and also preventing the flash upon ignition of the trace composition from producing a blinding effect on the gunner.
Furthermore, the present invention is adapted to improve the daylight visibility of the tracer streak emitted from thetracer composition, such tracer streak being sufficiently bright to permit the gunner to observe and fol-.
low the streak as the projectile travels along a trajectory.
From the foregoing description it will be understood that ignition of the tracer composition by the igniter composition and the appearance of-the tracer streak therefrom will not occur until a predetermined period of time has elapsed after ignition'of the igniter composition.
Obviously many modifications and variations of the present invention are possible in the light of the above teachings. It is, therefore, to be understood that within the scope of the appended claims the invention may be practiced otherwise than as specifically described.
7 The invention herein described and claimed may be manufactured and used by or for the Government of the United States of America for governmental purposes without the payment of any royalties thereon or therefor.
What is claimed as new and desired to be secured by Letters Patent of the United States is:
l. A slow-burning, non-flash igniter mixture for a tracer unit consisting essentially of 76 to 78.4% barium peroxide, from 18.4 to 23% antimony sulphide, up to 2.2% magnesium, and containing an amount up to 1% graphite.
' 2. A slow-burning, non-flash igniter composition for a tracer unit consisting essentially of 76 to 78.4% barium peroxide, from 18.4 to 23% antimony sulphide, and up to 2.2% magnesium.
References Cited in the file of this patent UNITED STATES PATENTS 2,115,047 Stevenson et a1 Apr. 26, 1938 2,362,502 Schladt Nov. 14, 1944 2,410,801 Audrieth Nov. 12, 1946 2,726,943 I Heiskell Dec. 13, 1955 2 ,899,291 Heiskell Aug 11, 1959 FOREIGN PATENTS 7,562 Great Britain Feb. 4, 1899 349,839 Great Britain June 4, 1 931

Claims (1)

1. A SLOW-BURNING, NON-FLASH IGNITER MIXTURE FOR A TRACER UNIT CONSISTING ESSENTIALLY OF 76 TO 78.4% BARIUM PEROXIDE, FROM 18.4 TO 23% ANTIMONY SULPHIDE, UP TO 2.2% MAGNESIUM, AND CONTAINING AN AMOUNT UP TO 1% GRAPHITE.
US795310A 1948-06-29 1959-02-10 Composition for tracer unit Expired - Lifetime US2976136A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US2899291D US2899291A (en) 1948-06-29 heiskell
US795310A US2976136A (en) 1948-06-29 1959-02-10 Composition for tracer unit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US3596048A 1948-06-29 1948-06-29
US795310A US2976136A (en) 1948-06-29 1959-02-10 Composition for tracer unit

Publications (1)

Publication Number Publication Date
US2976136A true US2976136A (en) 1961-03-21

Family

ID=26712655

Family Applications (2)

Application Number Title Priority Date Filing Date
US2899291D Expired - Lifetime US2899291A (en) 1948-06-29 heiskell
US795310A Expired - Lifetime US2976136A (en) 1948-06-29 1959-02-10 Composition for tracer unit

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US2899291D Expired - Lifetime US2899291A (en) 1948-06-29 heiskell

Country Status (1)

Country Link
US (2) US2976136A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3107613A (en) * 1961-02-17 1963-10-22 Du Pont Boron compound
US3160537A (en) * 1961-10-12 1964-12-08 Catalyst Research Corp Heating composition
US3203843A (en) * 1962-01-24 1965-08-31 Hi Shear Corp Charge material
US3850623A (en) * 1961-01-19 1974-11-26 Atomic Energy Commission Method for reducing uranium tetrafluoride to metallic uranium
US5235915A (en) * 1992-05-26 1993-08-17 Stevens Robert D Shotgun slug tracer round and improved shotgun slug

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899291A (en) * 1948-06-29 1959-08-11 heiskell
US3494285A (en) * 1968-03-29 1970-02-10 Us Army Tracer projectile for rifles
US20060219339A1 (en) 2005-04-05 2006-10-05 Louise Guindon Non-toxic, metallic-metal free zinc peroxide-containing, IR tracer compositions and IR tracer projectiles containing same for generating a dim visibility IR trace

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB349839A (en) * 1930-07-29 1931-06-04 Arnold Nabl Improvements in projectiles having means for illuminating the trajectory
US2115047A (en) * 1936-11-30 1938-04-26 Stevenson Thomas Tracer ammunition and to an igniter mixture for tracer compositions
US2362502A (en) * 1938-08-11 1944-11-14 George J Schladt Pyrotechnic compositions
US2410801A (en) * 1945-03-13 1946-11-12 Ludwig F Audrieth Igniting composition
US2726943A (en) * 1955-06-09 1955-12-13 Raymond H Heiskell Pyrotechinc composition
US2899291A (en) * 1948-06-29 1959-08-11 heiskell

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1708174A (en) * 1929-04-09 Louis hendler
GB189807562A (en) * 1898-03-29 1899-02-04 Hans Ritter Von Dahmen Improvements in the Manufacture of Safety-explosives.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB349839A (en) * 1930-07-29 1931-06-04 Arnold Nabl Improvements in projectiles having means for illuminating the trajectory
US2115047A (en) * 1936-11-30 1938-04-26 Stevenson Thomas Tracer ammunition and to an igniter mixture for tracer compositions
US2362502A (en) * 1938-08-11 1944-11-14 George J Schladt Pyrotechnic compositions
US2410801A (en) * 1945-03-13 1946-11-12 Ludwig F Audrieth Igniting composition
US2899291A (en) * 1948-06-29 1959-08-11 heiskell
US2726943A (en) * 1955-06-09 1955-12-13 Raymond H Heiskell Pyrotechinc composition

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3850623A (en) * 1961-01-19 1974-11-26 Atomic Energy Commission Method for reducing uranium tetrafluoride to metallic uranium
US3107613A (en) * 1961-02-17 1963-10-22 Du Pont Boron compound
US3160537A (en) * 1961-10-12 1964-12-08 Catalyst Research Corp Heating composition
US3203843A (en) * 1962-01-24 1965-08-31 Hi Shear Corp Charge material
US5235915A (en) * 1992-05-26 1993-08-17 Stevens Robert D Shotgun slug tracer round and improved shotgun slug
US5361701A (en) * 1992-05-26 1994-11-08 Stevens Robert D Shotgun slug tracer round and improved shotgun slug

Also Published As

Publication number Publication date
US2899291A (en) 1959-08-11

Similar Documents

Publication Publication Date Title
US2976136A (en) Composition for tracer unit
US4130061A (en) Gun fired projectile having reduced drag
JPH01164789A (en) Signal projictile composition and signal projectile containing this composition
US3677842A (en) Low light level tracer mix
US2640770A (en) Igniting composition and method of preparing same
US3972291A (en) Extended range tracer folded cup
GB657459A (en) Improvements in or relating to clay pigeons and like disc targets
US2726943A (en) Pyrotechinc composition
US2951752A (en) Incendiary composition
US3274035A (en) Metallic composition for production of hygroscopic smoke
US3135201A (en) Tracer material for missiles
US2716599A (en) Dark burning igniter composition
CA1175658A (en) Incendiary composition containing a metallic fuel formed of the group ivb of the periodic table of the elements
US2726944A (en) Pyrotechnic composition
US3695949A (en) Black smoke marker
US2409201A (en) Smoke-producing mixture
GB354718A (en) Improvements in and relating to shot gun cartridges
US2714061A (en) Nonluminous pyrotechnic mixture for a projectile
US2709129A (en) Igniter compositions
KR101402768B1 (en) Composition of Bright Flash Device Based on Pyrotechnic Mixture
CN110325814B (en) Self-luminous material, tracer ammunition and lighting device
US2823105A (en) Smoke tracer composition
US8066833B2 (en) Non-toxic boron-containing IR tracer compositions and IR tracer projectiles containing the same for generating a dim visibility IR trace
US3497404A (en) Cast flare composition of magnesium dispersed in a matrix,mostly sodium nitrate
US1593721A (en) Tracer mixture