US147872A - Improvement in cartridges for gunpowder-hammers - Google Patents
Improvement in cartridges for gunpowder-hammers Download PDFInfo
- Publication number
- US147872A US147872A US147872DA US147872A US 147872 A US147872 A US 147872A US 147872D A US147872D A US 147872DA US 147872 A US147872 A US 147872A
- Authority
- US
- United States
- Prior art keywords
- powder
- gunpowder
- hammers
- improvement
- cartridges
- 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 28
- 239000011248 coating agent Substances 0.000 description 14
- 238000000576 coating method Methods 0.000 description 14
- 239000000463 material Substances 0.000 description 10
- 239000002360 explosive Substances 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000003721 gunpowder Substances 0.000 description 2
- 230000002028 premature Effects 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
- B60R21/264—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic
- B60R21/2644—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic using only solid reacting substances, e.g. pellets, powder
Definitions
- THOMAS SHAW OF PHILADELPHIA, PENNSYLVANIA.
- My invention consists in the surrounding of the powder with a vegetable, animal, or metallic envelope, for the purpose as hereinafter described.
- the object of the invention is to prevent the ignition of the powder before it is struck by the hammer, and to protect the powder from moisture, and to enable the use of small powder by the employment of the metallic coating, all for the purpose as hereinafter described.
- this covering or coating of the powder was provided, which enables the covered powder to lie upon hot sparks for a period of ten seconds, more or less, without ignition, during which time the hammer will have reached and crushed the coating or covering, exposing the powder to the highly-heated air and sparks, which ignite and explode the powder, with its attending results.
- the materials employed in covering the powder be water-proof, as the soda powder employed is deliquescent, absorbing moisture, which injures the explosive property of the powder.
- a resinous or greasy material or tin-foil coating is best suited for the purpose.
- the improved coated cartridge herein described suitable for operating gunpowder-hammers and preventing premature explosions, consisting of a charge of gunpowder, or other explosive material, covered with a temporary protection against ignition, as and for the purpose set forth.
Description
UNITED STATES PATENT OFFICE.
THOMAS SHAW, OF PHILADELPHIA, PENNSYLVANIA.
IMPROVEMENT lN CARTRlDGES FOR GUNPOWDER-HAMMERS.
Specification forming part of Letters Patent No. 147,872, dated February 24, 1874; application filed March 13, 1873.
To all whom it may concern:
Be it known that I, THOMAS SHAW, of the city and county of Philadelphia, Pennsylvania, have invented a new and Improved Coating or Covering for Holding Powder, &c., for Shaws Gunpowder-Hammer and I hereby declare the following to be a full, clear, and exact description of the same.
My invention consists in the surrounding of the powder with a vegetable, animal, or metallic envelope, for the purpose as hereinafter described. The object of the invention is to prevent the ignition of the powder before it is struck by the hammer, and to protect the powder from moisture, and to enable the use of small powder by the employment of the metallic coating, all for the purpose as hereinafter described.
In order to more fully explain the object of this invention, it is important to mention that, in the working of the gunpowder-hammer, there are sparks left in the gun after each explosion, which will ignite the inserted powder before the entrance of the ram or hammer, which is fatal to the proper working of the machine. It is, therefore, very important that the powder does not explode until the cartridge is crushed by the sudden entrance of the ram, when the maximum effect is realized.
It is to remedy this defect that this covering or coating of the powder was provided, which enables the covered powder to lie upon hot sparks for a period of ten seconds, more or less, without ignition, during which time the hammer will have reached and crushed the coating or covering, exposing the powder to the highly-heated air and sparks, which ignite and explode the powder, with its attending results.
It will be observed that it is best that the materials employed in covering the powder be water-proof, as the soda powder employed is deliquescent, absorbing moisture, which injures the explosive property of the powder. A resinous or greasy material or tin-foil coating is best suited for the purpose. I
It is evident that various materials can be substituted for the describ ed coating, and that the shape of the coating or covering may be variously fashioned without any alteration in the result. I therefore do not wish to confine myself to the materials employed, or to the shape of the same.
What I do claim, and desire to secure by Letters Patent, is
The improved coated cartridge herein described, suitable for operating gunpowder-hammers and preventing premature explosions, consisting of a charge of gunpowder, or other explosive material, covered with a temporary protection against ignition, as and for the purpose set forth.
THOMAS SHAW. Witnesses: HECTOR ORR,
JAMES KEENAN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US147872A true US147872A (en) | 1874-02-24 |
Family
ID=2217285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US147872D Expired - Lifetime US147872A (en) | Improvement in cartridges for gunpowder-hammers |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US147872A (en) |
-
0
- US US147872D patent/US147872A/en not_active Expired - Lifetime
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