USRE7068E - Improvement in blasting-powder - Google Patents
Improvement in blasting-powder Download PDFInfo
- Publication number
- USRE7068E USRE7068E US RE7068 E USRE7068 E US RE7068E
- Authority
- US
- United States
- Prior art keywords
- powder
- blasting
- improvement
- sulphur
- pounds
- Prior art date
Links
- 239000000843 powder Substances 0.000 title description 14
- 239000005864 Sulphur Substances 0.000 description 16
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 16
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 8
- SNIOPGDIGTZGOP-UHFFFAOYSA-N 1,2,3-propanetrioltrinitrate Chemical compound [O-][N+](=O)OCC(O[N+]([O-])=O)CO[N+]([O-])=O SNIOPGDIGTZGOP-UHFFFAOYSA-N 0.000 description 6
- 229960003711 glyceryl trinitrate Drugs 0.000 description 6
- 239000003721 gunpowder Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000003415 peat Substances 0.000 description 6
- VWDWKYIASSYTQR-UHFFFAOYSA-N Sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000003610 charcoal Substances 0.000 description 4
- 239000003245 coal Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 239000002360 explosive Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 150000002823 nitrates Chemical class 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- UHBVTTDRNVAOJD-UHFFFAOYSA-N 1-nitropropane-1,2,3-triol Chemical compound OCC(O)C(O)[N+]([O-])=O UHBVTTDRNVAOJD-UHFFFAOYSA-N 0.000 description 2
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N Calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 description 2
- 206010010254 Concussion Diseases 0.000 description 2
- 229920002456 HOTAIR Polymers 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical class OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000003925 fat Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000001771 impaired Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 235000011837 pasties Nutrition 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Inorganic materials [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 235000010333 potassium nitrate Nutrition 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 235000011149 sulphuric acid Nutrition 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
Definitions
- the chief aim and purpose of my invention is to produce a powder for blasting, which, while having great dynamic power, (which I graduate for mining purposes,) shall possess the quality of being non-explosive in the open air or by concussion or friction, and at the same time be manufactured at a greatly reduced cost.
- the essential principle of my invention consists in mixing a comparatively large volume of the elements of common gunpowder with a small volume of such other elements as will, under the proper conditions, combine with the nitrogen, oxygen, and sulphur ol' the gunpowder-to form nitro-glycerine, or the equivalent thereof, the nitro-glyceri n e elements remaining chemically uncombined as nitro-glycerine until the mixture is exploded in a close chamber or under pressure.
- nitrate of soda orsaltpeter, sulphur, and charcoal which form the base or large proportion of gunpowder elements above referred to, and the oils or fats of animals, or tar of any kind, which unite with the nitrates and sulphur to form the comparatively small nitroglycerine element; or combination of nitric or nitric and sulphuric acids with the elements of common tar, and also a small quantity of peat, metallic sulphates, and hard coal, to expedite the process and insure the best results.
- the proportions of these things may be slightly varied, yet experiment has shown that the .l'ollowing have proven. the best for the purpose, varying from the maximum to the minimum, according to the strength desired. Formanufacturingonehundredpounds, the proportions willbc: nitrate of soda or saltpeter, sixty to seventy pounds; sulphur, ten to twelve pounds; charcoal, seven to ten pounds; peat and hard coal, nine to twelve pounds; combined metallic .sulphates, two to four pounds; and oleaginous matter, animal'or vegetable, refined or crude, one to three pounds. Tar in any form will answer the purpose of such oily matter.
- the temperature should not be raised so high as to liquefy the sulphur, for the reason that the latter will then form independent globules, and the process will be impaired, it not altogether defeated 5 but it should be kept as high as it can without melting the sulphur, it being best if graduated so as to soften the sulphur, and render it sticky or pasty, the minimum of moisture being thatwhich will dissolve the nitrates, and the maximum of heat being that which will soften but not liquefy, the sulphur.
- the result will be aperfect ineo rporation of the materials, and by prolonging the external heat about thirty minutes after the direct application of the steam ceases the liquids will evaporate, and the compound become dry.
- the temperature of the heating element in the double bottom is slowly reduced from 250 to 150 Fahrenheit, in order to insure perfect safety during the drying process.
- WV'hen nearly dry, I take the mass out and put it on a dryin'g-platform, of metal, heated by steam or hot air, and under this action for about fifteen minutes the powder is ready for packing.
Description
-* UNITED STATES PATENT OFFICE;
I-IERRENSTEIN OOURTEILLE, OF NEW YORK, N. Y., ASSIeNoR, BY MEsNE ASSIGNMENTS, TO THE TRIUMPH PATENT SAFETY POWDER COMPANY,
OF BALTIMORE, MARYLAND.
IMPROVEMENT IN BLASTlNG-POWDER,
Specification forming part of Letters Patent No. 167,503, dated September *7, 1875; reissue No. 7,068, dated April 18, 1876; application filed March 2-8, 1876.
T0 cal; whom it may concern.-
Be it known that I, HERRENSTEIN COUR- TEILLE, of the city, county, and State of New York, have invented a new and useful Improvement in the Manufacture of Blasting- Powder; and I do hereby declare the follow-- ing to be a full, clear, and exact description of the same.
The chief aim and purpose of my invention is to produce a powder for blasting, which, while having great dynamic power, (which I graduate for mining purposes,) shall possess the quality of being non-explosive in the open air or by concussion or friction, and at the same time be manufactured at a greatly reduced cost. To this end the essential principle of my invention consists in mixing a comparatively large volume of the elements of common gunpowder with a small volume of such other elements as will, under the proper conditions, combine with the nitrogen, oxygen, and sulphur ol' the gunpowder-to form nitro-glycerine, or the equivalent thereof, the nitro-glyceri n e elements remaining chemically uncombined as nitro-glycerine until the mixture is exploded in a close chamber or under pressure.
In carrying this invention into practice, I employ the following ingredients, to wit: nitrate of soda orsaltpeter, sulphur, and charcoal, which form the base or large proportion of gunpowder elements above referred to, and the oils or fats of animals, or tar of any kind, which unite with the nitrates and sulphur to form the comparatively small nitroglycerine element; or combination of nitric or nitric and sulphuric acids with the elements of common tar, and also a small quantity of peat, metallic sulphates, and hard coal, to expedite the process and insure the best results.
WVhile the proportions of these things may be slightly varied, yet experiment has shown that the .l'ollowing have proven. the best for the purpose, varying from the maximum to the minimum, according to the strength desired. Formanufacturingonehundredpounds, the proportions willbc: nitrate of soda or saltpeter, sixty to seventy pounds; sulphur, ten to twelve pounds; charcoal, seven to ten pounds; peat and hard coal, nine to twelve pounds; combined metallic .sulphates, two to four pounds; and oleaginous matter, animal'or vegetable, refined or crude, one to three pounds. Tar in any form will answer the purpose of such oily matter. All the solid qnatters are pulverized and mixed together with the metallic sulphates, and with moisture suflicient to thoroughly saturate them at a temperature of about 250 Fahrenheit. The moisture I consider to be best applied by subjecting the materials in an open Vessel to the direct action of steam until they are thoroughly saturated. With this I combine the action of external heat, using superheated steam on account of its safety, the vessel being provided with a double bottom for that purpose.
The temperature should not be raised so high as to liquefy the sulphur, for the reason that the latter will then form independent globules, and the process will be impaired, it not altogether defeated 5 but it should be kept as high as it can without melting the sulphur, it being best if graduated so as to soften the sulphur, and render it sticky or pasty, the minimum of moisture being thatwhich will dissolve the nitrates, and the maximum of heat being that which will soften but not liquefy, the sulphur. The result will be aperfect ineo rporation of the materials, and by prolonging the external heat about thirty minutes after the direct application of the steam ceases the liquids will evaporate, and the compound become dry.
During the evaporation of the liquids the temperature of the heating element in the double bottom is slowly reduced from 250 to 150 Fahrenheit, in order to insure perfect safety during the drying process.
WV'hen nearly dry, I take the mass out and put it on a dryin'g-platform, of metal, heated by steam or hot air, and under this action for about fifteen minutes the powder is ready for packing.
I claim as my invention 1. The improved safety blasting-powder, iontaining the eleniei'lts of common gunpow- 'ler and also the unecmbinecl elements 01' ni ro-glyeerine, substantially as described.
2. The process of i'nanufacturing an explosive compound by treating the components )f ordinary gunpowder in the presence of 0le aginous 0r tarry matters, peat, and metallic sulphates, substantially as and for the purposes set forth,
H'ERRENSTEIN COURTEILLE. \Vitnesses:
TH. G. STEWART, OTTO BENNER.
Family
ID=
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