US199723A - Improvement in powder for cannons - Google Patents
Improvement in powder for cannons Download PDFInfo
- Publication number
- US199723A US199723A US199723DA US199723A US 199723 A US199723 A US 199723A US 199723D A US199723D A US 199723DA US 199723 A US199723 A US 199723A
- Authority
- US
- United States
- Prior art keywords
- powder
- improvement
- cannons
- grains
- gunpowder
- 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 title description 10
- 239000003721 gunpowder Substances 0.000 description 8
- 235000012970 cakes Nutrition 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 235000012054 meals Nutrition 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
- C06B21/0033—Shaping the mixture
- C06B21/0066—Shaping the mixture by granulation, e.g. flaking
Definitions
- This invention has for its object the making of gunpowder into cubic, or nearly cubic,
- the plates are removed and the pins withdrawn from the presscake, which is then broken up into cubes, with a hole through the middle of each,-in the usual way, and the grains tumbled in barrels, to wear off the sharp angles.
- the density of the powder formed at one pressing will not vary greatly, and as great density as is desired can be readily given, while the cost of manufacture, as compared with other perforated powder, is much reduced.
Description
T. S. L LEY. P0 rv f0 nnon.
No. 199,723. Patented Jah..,2-9, 1878.
wiznesses. fnvenlo r.
UNITED STATES PATENT OFFICE.
THEODORE T. S. LAIDLEY, OF UNITED STATES ARMY.
IMPROVEMENT IN POWDER FOR CANNONS.
Specification forming part of Letters Patent N0. 199,723, dated January 29, 1878; application filed October 1, 1877.
To all whom it may concern:
Be it known that I, THEODORE T. S. LAID- LEY, of the Army of the United States, have invented a new and useful Improvement in the Mode of Making Gunpowder for Great Guns; and I'do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawing, which forms a part of this specification.
This invention has for its object the making of gunpowder into cubic, or nearly cubic,
rains with the ed es and corners removed g 7 4 g a and perforated with a hole running through the middle of two opposite sides.
I am aware that gunpowder has been pressed into prismatic-shaped grains, with a cylindrical hole running through the middle of the bases. Each prism is necessarilyformed separately, and the operation is slow and expensive; besides, the density of the different grains, de-
pending upon conditions which cannot be fulrespond. A steel pin, slightly tapering, fits snugly into each hole in the bottom plate, and just enters the top one. The pins and surfaces of the plates are dusted over with black-lead, to prevent the adhesion of the powder. The powder, meal, or soft grains, containing the proper amount of moisture, is filled in between the plates placed in the press-box, which will contain a number of similar plates similarly disposed. The whole are subjected to the required pressure by means of a strong hydraulic press, the pins being forced, as the pressure increases, farther into the holes in the plate prepared to receive them. When the required density has been obtained, the plates are removed and the pins withdrawn from the presscake, which is then broken up into cubes, with a hole through the middle of each,-in the usual way, and the grains tumbled in barrels, to wear off the sharp angles. As a number of cakes has been thus subjected to the same pressure, and a large number of grains formed from each cake, the density of the powder formed at one pressing will not vary greatly, and as great density as is desired can be readily given, while the cost of manufacture, as compared with other perforated powder, is much reduced.
What I claim as my invention is Gunpowder consisting of cubical grains, each grain being perforated centrally through two opposite sides, and having the angles rounded 01f, substantially as described, and for the purpose specified.
, T. T. S. LAIDLEY. Witnesses:
CHARLES A. .GREGG, THOMAS MORTON.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US199723A true US199723A (en) | 1878-01-29 |
Family
ID=2269130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US199723D Expired - Lifetime US199723A (en) | Improvement in powder for cannons |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US199723A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2939396A (en) * | 1954-09-02 | 1960-06-07 | Phillips Petroleum Co | Rocket grain |
| US2988877A (en) * | 1957-12-30 | 1961-06-20 | Phillips Petroleum Co | Solid propellant rocket motor |
| US3017744A (en) * | 1957-07-11 | 1962-01-23 | James A Jett | Propellant grain and rocket motor |
| US3077734A (en) * | 1956-12-10 | 1963-02-19 | Phillips Petroleum Co | Solid-propellant rocket motor |
-
0
- US US199723D patent/US199723A/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2939396A (en) * | 1954-09-02 | 1960-06-07 | Phillips Petroleum Co | Rocket grain |
| US3077734A (en) * | 1956-12-10 | 1963-02-19 | Phillips Petroleum Co | Solid-propellant rocket motor |
| US3017744A (en) * | 1957-07-11 | 1962-01-23 | James A Jett | Propellant grain and rocket motor |
| US2988877A (en) * | 1957-12-30 | 1961-06-20 | Phillips Petroleum Co | Solid propellant rocket motor |
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