US3272126A - Pyrotechnic fuze system - Google Patents

Pyrotechnic fuze system Download PDF

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Publication number
US3272126A
US3272126A US353633A US35363364A US3272126A US 3272126 A US3272126 A US 3272126A US 353633 A US353633 A US 353633A US 35363364 A US35363364 A US 35363364A US 3272126 A US3272126 A US 3272126A
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United States
Prior art keywords
shell
charge
fuze
fuze system
pyrotechnic
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US353633A
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David J Edelman
Seymour M Kaye
Elie L Barrieres
Weingarten Garry
Palins Morris
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Priority to US353633A priority Critical patent/US3272126A/en
Priority to GB11752/65A priority patent/GB1106036A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C9/00—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition
    • F42C9/02—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means
    • F42C9/06—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means by flow of fluent material, e.g. shot, fluids
    • 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
    • F42B12/46—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 for dispensing gases, vapours, powders or chemically-reactive substances
    • F42B12/48—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 for dispensing gases, vapours, powders or chemically-reactive substances smoke-producing, e.g. infrared clouds

Definitions

  • This invention relates to a fuze system wherein detonation is brought about by heat. This heat in turn originates from the stagnation temperature caused by the passage of the shell through the air toward its target.
  • FIG. l shows a section of the fuze wherein the fuze tip is a slug of copper.
  • FIG. 2 shows a similar fuze wherein the tip is steel, bored to receive the small charge of diazodintrophenol.
  • the top of the bore 10 is lled with a copper plug 12 which facilitates the conducting of heat to the diazodinitrophenol charge.
  • the ignition temperature of the diazodinitrophenol is approximately 200 C. and ignition will occur in Hight only when the stagnation temperature exceeds this value. No special precaution need be taken to prevent preignition since environmental conditions rarely exceed 74 C. and never even approach 200 C.
  • the fuze is charged with about 1S mgs. of diazodinitro phenol which is packed in at 5500 to 7500 lbs. per square inch pressure. Behind the fuze a smoke composition is positioned such that the firing of the fuze will ignite the smoke composition.
  • This invention is not limited to the functioning of a smoke composition, which is cited only as an example, but may also include other pyrotechnic compositions or explosive charges which can be ignited by diazodinitrophenol.
  • a pyrotechnic fuze system for an ordnance shell comprising a metal slug containing a charge of diazodinitrophenol and adapted to form a portion of the external surface of said shell, said slug being heated suiciently by air friction during the flight of said shell to cause ignition of said charge.
  • a fuze system for an Aordnance shell comprising a hollow metal slug, a charge of diazodinitrophenol in said slug and closure means for said slug forming a heatconducting medium for said charge, said means being adapted to form a portion of the external surface of said shell which becomes heated during air flight and conducts sufficient heat for igniting said charge.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Air Bags (AREA)
  • Toys (AREA)

Description

D. J. r-:DELMAN ETAL 3,272,126 PYROTECHNIC FUZE SYSTEM Filed March 20, 1964 Sept. I3, 1966 NVENTORS,
e/man/ Syb/four Kaye j@ QL @arr United States Patent Office 3,272,126 Patented Sept. 13, 1966 PYROTECHNIC FUZE SYSTEM David J. Edelman, Flanders, Seymour M. Kaye, Dover, and Elie L. Barrieres and Garry Weingarten, Morris Plains, NJ., assignors to the United States of America as represented by the Secretary of the Army Filed Mar. 20, 1964, Ser. No. 353,633 4 Claims. (Cl. 102--70) The invention described herein may be manufactured and used by or for the Government for governmental purposes, without the payment to us of any royalty thereon.
This invention relates to a fuze system wherein detonation is brought about by heat. This heat in turn originates from the stagnation temperature caused by the passage of the shell through the air toward its target.
In the drawings, FIG. l shows a section of the fuze wherein the fuze tip is a slug of copper. FIG. 2 shows a similar fuze wherein the tip is steel, bored to receive the small charge of diazodintrophenol. In this latter type of structure, the top of the bore 10 is lled with a copper plug 12 which facilitates the conducting of heat to the diazodinitrophenol charge.
In either structure, heat is readily conducted to the charge and this always produces ignition when the shell is in iiight at sufficient velocity.
The ignition temperature of the diazodinitrophenol is approximately 200 C. and ignition will occur in Hight only when the stagnation temperature exceeds this value. No special precaution need be taken to prevent preignition since environmental conditions rarely exceed 74 C. and never even approach 200 C.
The fuze is charged with about 1S mgs. of diazodinitro phenol which is packed in at 5500 to 7500 lbs. per square inch pressure. Behind the fuze a smoke composition is positioned such that the firing of the fuze will ignite the smoke composition.
This invention is not limited to the functioning of a smoke composition, which is cited only as an example, but may also include other pyrotechnic compositions or explosive charges which can be ignited by diazodinitrophenol.
We claim:
1. A pyrotechnic fuze system for an ordnance shell comprising a metal slug containing a charge of diazodinitrophenol and adapted to form a portion of the external surface of said shell, said slug being heated suiciently by air friction during the flight of said shell to cause ignition of said charge.
2. A fuze system for an Aordnance shell comprising a hollow metal slug, a charge of diazodinitrophenol in said slug and closure means for said slug forming a heatconducting medium for said charge, said means being adapted to form a portion of the external surface of said shell which becomes heated during air flight and conducts sufficient heat for igniting said charge.
3. A fuze system in accordance with claim 2 wherein said closure means defines a fuze tip.
4. A fuze system in accordance with claim 2 wherein said closure means consists of a copper plug.
References Cited by the Examiner UNITED STATES PATENTS 675,845 6/1901 Beaman 102-87 1,301,382 4/1919 lBuckingham 102-87 2,402,811 671946 Galen 10Q-90 2,807,209 9/ 1957 Kennard 102-49 3,158,097 11/ 1964 Brockway et al. 102--28 BENJAMIN A. BORCHELT, Prz'maly Examiner. G. H. GLANZMAN, Assistant Examiner.

Claims (1)

1. A PYROTECHNIC FUZE SYSTEM FOR AN ORDANCE SHELL COMPRISING A METAL SLUG CONTAINING A CHARGE OF DIAZODINITROPHENOL AND ADAPTED TO FORM A PORTION OF THE EXTERNAL SURFACE OF SAID SHELL, SAID SLUG BEING HEATED SUFFICIENTLY BY AIR FRICTION DURING THE FLIGHT OF SAID SHELL TO CAUSE IGNITION OF SAID CHARGE.
US353633A 1964-03-20 1964-03-20 Pyrotechnic fuze system Expired - Lifetime US3272126A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US353633A US3272126A (en) 1964-03-20 1964-03-20 Pyrotechnic fuze system
GB11752/65A GB1106036A (en) 1964-03-20 1965-03-19 Improvements in or relating to fuzes for projectiles or missiles

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US353633A US3272126A (en) 1964-03-20 1964-03-20 Pyrotechnic fuze system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3710723A (en) * 1969-08-05 1973-01-16 Oerlikon Buehrle Ag Tracer projectile

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US675845A (en) * 1899-12-19 1901-06-04 David C Beaman Visibly-traveling projectile.
US1301382A (en) * 1917-07-02 1919-04-22 James Frank Buckingham Incendiary projectile.
US2402811A (en) * 1941-10-23 1946-06-25 Duplex Printing Press Co Incendiary projectile
US2807209A (en) * 1952-05-20 1957-09-24 Jarman G Kennard Fuel pressurization system
US3158097A (en) * 1962-06-11 1964-11-24 Du Pont Explosive initiator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US675845A (en) * 1899-12-19 1901-06-04 David C Beaman Visibly-traveling projectile.
US1301382A (en) * 1917-07-02 1919-04-22 James Frank Buckingham Incendiary projectile.
US2402811A (en) * 1941-10-23 1946-06-25 Duplex Printing Press Co Incendiary projectile
US2807209A (en) * 1952-05-20 1957-09-24 Jarman G Kennard Fuel pressurization system
US3158097A (en) * 1962-06-11 1964-11-24 Du Pont Explosive initiator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3710723A (en) * 1969-08-05 1973-01-16 Oerlikon Buehrle Ag Tracer projectile

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GB1106036A (en) 1968-03-13

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