US193483A - Improvement in blasting-cartridges - Google Patents
Improvement in blasting-cartridges Download PDFInfo
- Publication number
- US193483A US193483A US193483DA US193483A US 193483 A US193483 A US 193483A US 193483D A US193483D A US 193483DA US 193483 A US193483 A US 193483A
- Authority
- US
- United States
- Prior art keywords
- cartridges
- powder
- cartridge
- compartment
- improvement
- 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
Links
- 239000000843 powder Substances 0.000 description 40
- 239000002360 explosive Substances 0.000 description 12
- 238000009527 percussion Methods 0.000 description 10
- 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 8
- 229960003711 glyceryl trinitrate Drugs 0.000 description 8
- NHNBFGGVMKEFGY-UHFFFAOYSA-N nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 8
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 8
- 229910052708 sodium Inorganic materials 0.000 description 8
- 239000011734 sodium Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 6
- 238000010304 firing Methods 0.000 description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 4
- 229910052700 potassium Inorganic materials 0.000 description 4
- 239000011591 potassium Substances 0.000 description 4
- 239000005864 Sulphur Substances 0.000 description 2
- 235000020127 ayran Nutrition 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000003721 gunpowder Substances 0.000 description 2
- 150000002823 nitrates Chemical class 0.000 description 2
- 239000004482 other powder Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
Definitions
- PRUDENGIO OASTELLANOS OF SAN FRANCISCO, CALIFORNIA.
- the object of this invention is to augment the power of a mining-powder which has for its base nitrate of sodium. firing of it by means of another explosive mining-powder, which is fired by percussion.
- the invention consists of a cartridge whose interior capacity is divided into two or more compartments, filled with two different mining-powders.
- the exterior of the cartridge is formed of two or three envelopings of paper, greased or varnished like the ordinary mining-cartridges, and the interior compartments are divided simply by a single leaf of the same paper.
- the cartridge is, in exterior form and dimensions, equal to the ordinary ones, and its interior form is shown in Figures 1 and 2, and 3 and 4, which represent vertical and horizontal sections of two cartridges, loaded in the following manner:
- the compartment A is filled with pyronome, (which is a well-known powder composed of nitrate of sodium, tan, and sulphur,) invented in France in 1861, by M.
- Reynaud which is known to be explosive neither by percussion nor by fire in the open air. This should be used in the form of hard grains.
- the cartridge is enveloped in an impermeable covering, which protects it from dampness, and which I have invented to preserve the explosiveness of the hygrometric powders and the hardness of the grains, which invention is the object of a separate application for Letters Patent.
- the relative capacity of the compartments of the cartridge, Figs. 1 and 2 may be varied by the compartment A containing an equal amount, or double, or triple, or quadruple, &c.,
- the cartridge Figs. 3 and 4 contains equal quantities of the two kinds of powder referred 1 to before, as the compartments have the form of a half-cylinder.
- the compartment B By giving the compartment B the formof a third or a fourth of a cylinder, enlarges the capacity of compartment A.
- the cartridges may have many other forms, and also a greater number of compartments; but I find the forms of the cartridges described above more advantageous.
- Fig. 5 represents a vertical section of a cartridge with many compartments, loaded with powder.
- the pyronome may be replaced by other powder in hard grains which has nitrate of sodium or nitrate of potassium for base-for example, ordinary gunpowder; but in that case the cartridges would be explosive by the action of fire, and would be more expensive.
- the cartridges must be used in place of the black powder to load bore-holes, in the following manner:
- the cartridge is uncovered at one end,-so as to expose the powder in compartment B.
- the cartridge is then introduced down to the bottom of the bore-hole, and then a fuse with a percussive petard or percussioncap attached to its end, which must remain in contact with the powder, is introduced after the cartridge, and the hole is filled with earth, which must be compressed lightly.
- nitro-glycerine which are not explosive, because they contain but a small quantity of it, may be exploded in my cartridges-as, for example, a mixture of chalk with fifteen or twenty per cent.
- nitro-glycerine does not explode with percussion-caps which are used to explode nitro-glycerine powders, but loading with the same composition the compartment A of one of my cartridges, especially that of Figs.
Description
-P. CASTJELLANOS. BLAS'IING-CAR.TRIDGE. No. 193,483. Patented July 2 35,1877.
frz m2 My) @Z M UNITED STATES Pn'rmv'r jrrrou.
PRUDENGIO OASTELLANOS, OF SAN FRANCISCO, CALIFORNIA.
IMPROVEMENT IN BLASTlNG-CARTRIDGES.
Specification forming part of Letters Patent No. 193,483, dated July 24, 1877 application filed December 19, 1876.
To all, whom it may concern 1 Be it known that I, Pnrmnncro CASTEL- LANDS, of the city and county of San Francisco, State of California, have invented a new and useful improvement in Cartridges for Blasting, which improvement is fully set forth in the following specification, reference being bad to the accompanying drawings.
The object of this invention is to augment the power of a mining-powder which has for its base nitrate of sodium. firing of it by means of another explosive mining-powder, which is fired by percussion.
The invention consists of a cartridge whose interior capacity is divided into two or more compartments, filled with two different mining-powders.
The exterior of the cartridge is formed of two or three envelopings of paper, greased or varnished like the ordinary mining-cartridges, and the interior compartments are divided simply by a single leaf of the same paper. The cartridge is, in exterior form and dimensions, equal to the ordinary ones, and its interior form is shown in Figures 1 and 2, and 3 and 4, which represent vertical and horizontal sections of two cartridges, loaded in the following manner: The compartment A is filled with pyronome, (which is a well-known powder composed of nitrate of sodium, tan, and sulphur,) invented in France in 1861, by M. Reynaud, which is known to be explosive neither by percussion nor by fire in the open air. This should be used in the form of hard grains. The compartment B is loaded with a composition explosive by percussion, containing nitro-glycerine, like the giant, the Hercules, and other powders, and also some of the mining-powders invented by me. Powder of the second grade should be preferred, or such as contains nitrates of sodium or of potassium.
The cartridge is enveloped in an impermeable covering, which protects it from dampness, and which I have invented to preserve the explosiveness of the hygrometric powders and the hardness of the grains, which invention is the object of a separate application for Letters Patent.
When a cartridge is confined in a bore-hole, and the powder of compartment B is caused to explode, the heat produced by this explo- I accomplish the sion infiames the powder in compartment A with great velocity, and causes it to explode with much more force than any other known system of firing can do.
The relative capacity of the compartments of the cartridge, Figs. 1 and 2, may be varied by the compartment A containing an equal amount, or double, or triple, or quadruple, &c.,
'the quantity of powder contained in compart-.
ment B.
The cartridge Figs. 3 and 4 contains equal quantities of the two kinds of powder referred 1 to before, as the compartments have the form of a half-cylinder. By giving the compartment B the formof a third or a fourth of a cylinder, enlarges the capacity of compartment A. p
The cartridges may have many other forms, and also a greater number of compartments; but I find the forms of the cartridges described above more advantageous.
Fig. 5 represents a vertical section of a cartridge with many compartments, loaded with powder.
In the loading of the cartridges, the pyronome may be replaced by other powder in hard grains which has nitrate of sodium or nitrate of potassium for base-for example, ordinary gunpowder; but in that case the cartridges would be explosive by the action of fire, and would be more expensive.
The cartridges must be used in place of the black powder to load bore-holes, in the following manner: The cartridge is uncovered at one end,-so as to expose the powder in compartment B. The cartridge is then introduced down to the bottom of the bore-hole, and then a fuse with a percussive petard or percussioncap attached to its end, which must remain in contact with the powder, is introduced after the cartridge, and the hole is filled with earth, which must be compressed lightly.
. l have found that many compounds of nitro-glycerine which are not explosive, because they contain but a small quantity of it, may be exploded in my cartridges-as, for example, a mixture of chalk with fifteen or twenty per cent. of nitro-glycerine does not explode with percussion-caps which are used to explode nitro-glycerine powders, but loading with the same composition the compartment A of one of my cartridges, especially that of Figs. 1 and similar purposes here described, consistingin an ordinary paper cartridge, having various interior compartments, loaded with two different mining-powders which, are pyronome in grains, or another powder of this class, inexplosive for percussion, and"giant or another powder explosive by percussion, constructed and operating substantially as and for the purpose specified.
PRUDENUIO OASTELLANOS.
Witnesses M. J AGUIRRE, I. DE URIos'rE.
Publications (1)
Publication Number | Publication Date |
---|---|
US193483A true US193483A (en) | 1877-07-24 |
Family
ID=2262889
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US193483D Expired - Lifetime US193483A (en) | Improvement in blasting-cartridges |
Country Status (1)
Country | Link |
---|---|
US (1) | US193483A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2671400A (en) * | 1948-04-05 | 1954-03-09 | Bert F Duesing | Explosive construction having directional effect characteristics |
US2770312A (en) * | 1953-09-11 | 1956-11-13 | Stanolind Oil & Gas Co | Seismic wave generation |
-
0
- US US193483D patent/US193483A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2671400A (en) * | 1948-04-05 | 1954-03-09 | Bert F Duesing | Explosive construction having directional effect characteristics |
US2770312A (en) * | 1953-09-11 | 1956-11-13 | Stanolind Oil & Gas Co | Seismic wave generation |
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