US1243231A - Manufacture of explosives. - Google Patents

Manufacture of explosives. Download PDF

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Publication number
US1243231A
US1243231A US7590916A US7590916A US1243231A US 1243231 A US1243231 A US 1243231A US 7590916 A US7590916 A US 7590916A US 7590916 A US7590916 A US 7590916A US 1243231 A US1243231 A US 1243231A
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US
United States
Prior art keywords
zinc
explosive
lbs
explosives
manufacture
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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
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US7590916A
Inventor
Ross George Smith
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Raymond Pynchon & Co
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Raymond Pynchon & Co
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Application filed by Raymond Pynchon & Co filed Critical Raymond Pynchon & Co
Priority to US7590916A priority Critical patent/US1243231A/en
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Publication of US1243231A publication Critical patent/US1243231A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • C06B33/06—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 the material being an inorganic oxygen-halogen salt

Definitions

  • This invention relates to high explosives of the perchlorate type, suitable for use in mines, shells or bombs, and for blasting or other purposes.
  • Ammonium chlorate is moreover in itself an unstable compound and cannot be employed owing to the fact that it undergoes spontaneous decomposition.
  • the present invention is based on the dis covery that ammonium perchlorate can be employed as the oxidizing agent in a zinc powder explosive only if the more usual oxidizing agents, the chlorates and nitrates, are absent.
  • the carbon compounds preferred are petroleum jelly or other solid or liquid hydrocarbon and asphaltum varnish or tarry material, such as tar oil with or without the addition of benzol or alcohol.
  • the asphaltum varnish contains some sulfur and this is desirable, so that where tarry material free from sulfur is used a small quantityof sulfur, up to say 5% of the said material, may be added.
  • the varnish or equivalent substance acts as a water-proofing Specification of Letters Patent.
  • composition contains typi-" cal proportions of the ingredients for 100 lbs. of a powerful explosive prepared according to this invention: ammonium perchlorate, 82 lbs; zinc dust, 10 lbs; petroleum jelly, 5 lbs.; asphaltum varnish, 3 lbs.
  • ammonium perchlorate 82 lbs
  • zinc dust 10 lbs
  • petroleum jelly 5 lbs.
  • asphaltum varnish 3 lbs.
  • the powdered ingredients are mixed together and the petroleum jelly and asphaltum varnish added in succession and intimately mixed in.
  • An explosive composition consisting of finely divided zinc, petroleum jelly, a waterproofing organic compound, and ammonium perchlorate in sufiicient quantity to oxidize the other ingredients, no chlorates, nitrates or nitro compounds being present.
  • An explosive composition consisting of finely divided 'zinc, petroleum jelly, asphaltum varnish, and ammonium perchlorate in sufficient quantity to oxidize the other ingredients, no chlorates, nitrates or nitro compounds being present.
  • An explosive composition consisting of the following ingredients in approximately the following proportions :-ammonium perchlorate, 82 lbs; finely divided zinc 10 lbs.; petroleum jelly, 5 lbs.; asphaltum varnish, 3 lbs. J

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Emergency Lowering Means (AREA)

Description

UNITED STATES PATENT OFFICE.
BOSS GEORGE SMITH, OF DERBY VILLAGE, NEW HAMPSHIRE, ASSIGNOR TO RAYMOND, PYNCHON COMPANY, OF NEW YORK, N. Y.
MANUFACTURE OF EXPLOSIVES.
11' 0 Drawing.
To all whom it may concern ham, State of New Hampshire, have invented certain new and useful Improvements in the Manufacture of Explosives, of which the following is a specification.
This invention relates to high explosives of the perchlorate type, suitable for use in mines, shells or bombs, and for blasting or other purposes.
According tothis invention a mixture of ammonium perchlorate and finely divided,
zinc such as zinc dust is employed, together with suitable carbon compounds which are not liable to reduction by the z nc. No nitrates or nitro compounds are used, as these are attacked by the zinc and render the latter useless. Chlorates are also avoided'. It is essential that the zinc powder remain unaffected until the explosive is detonated and the perchlorate is a stable compound which does not react with the zinc under normal conditions' It has been discovered on the other hand, that not only do nitrates and nitro compounds react with the zinc, but that chloratesywhich have been proposed for use in an explosive employing zinc, act in a manner quite different from perchlorates which are therefore not equivalents in an explosive of this type. Ammonium chlorate is moreover in itself an unstable compound and cannot be employed owing to the fact that it undergoes spontaneous decomposition. The present invention is based on the dis covery that ammonium perchlorate can be employed as the oxidizing agent in a zinc powder explosive only if the more usual oxidizing agents, the chlorates and nitrates, are absent.
The carbon compounds preferred are petroleum jelly or other solid or liquid hydrocarbon and asphaltum varnish or tarry material, such as tar oil with or without the addition of benzol or alcohol. The asphaltum varnish contains some sulfur and this is desirable, so that where tarry material free from sulfur is used a small quantityof sulfur, up to say 5% of the said material, may be added. The varnish or equivalent substance acts as a water-proofing Specification of Letters Patent.
Patented Oct. 16, 191 '7.
Application filed February 3, 1916. Serial No. 75,909.
and air-proofing material to prevent oxidation of the zinc or its contact with any small quantities of substances in the explosive mlxture which may be reduced by the zinc.
' The following composition contains typi-" cal proportions of the ingredients for 100 lbs. of a powerful explosive prepared according to this invention: ammonium perchlorate, 82 lbs; zinc dust, 10 lbs; petroleum jelly, 5 lbs.; asphaltum varnish, 3 lbs. The powdered ingredients are mixed together and the petroleum jelly and asphaltum varnish added in succession and intimately mixed in. Some alterationsin the proportions of the ingredients and in the nature of the organic materials may be made to produce any special characteristics which may be desired. It is found that an explosive prepared in this manner possesses not only great stabilitybut detonates perfectly, so that no particles are left unexploded even in the open air.
What I claim and desire to secure by Letters Patent of the United States is 1. An explosive composition consisting of finely divided zinc, a combustible carbon.
compound which is stable in the presence of zinc, and ammonium perchlorate in sufficient quantity to oxidize the other ingredients, no chlorates, nitrates or nitro compounds being present.
2. An explosive composition consisting of finely divided zinc, petroleum jelly, a waterproofing organic compound, and ammonium perchlorate in sufiicient quantity to oxidize the other ingredients, no chlorates, nitrates or nitro compounds being present.
. 3. An explosive composition consisting of finely divided 'zinc, petroleum jelly, asphaltum varnish, and ammonium perchlorate in sufficient quantity to oxidize the other ingredients, no chlorates, nitrates or nitro compounds being present.
4. An explosive composition consisting of the following ingredients in approximately the following proportions :-ammonium perchlorate, 82 lbs; finely divided zinc 10 lbs.; petroleum jelly, 5 lbs.; asphaltum varnish, 3 lbs. J
In testimony whereof I herewith afiix my signature.
ROSS GEORGE SMITH.
US7590916A 1916-02-03 1916-02-03 Manufacture of explosives. Expired - Lifetime US1243231A (en)

Priority Applications (1)

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US7590916A US1243231A (en) 1916-02-03 1916-02-03 Manufacture of explosives.

Applications Claiming Priority (1)

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US7590916A US1243231A (en) 1916-02-03 1916-02-03 Manufacture of explosives.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2477549A (en) * 1947-01-22 1949-07-26 Permanente Metals Corp Explosive composition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2477549A (en) * 1947-01-22 1949-07-26 Permanente Metals Corp Explosive composition

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