US286649A - stewaet - Google Patents
stewaet Download PDFInfo
- Publication number
- US286649A US286649A US286649DA US286649A US 286649 A US286649 A US 286649A US 286649D A US286649D A US 286649DA US 286649 A US286649 A US 286649A
- Authority
- US
- United States
- Prior art keywords
- powder
- projectile
- breech
- exploding
- gun
- 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 20
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000004880 explosion Methods 0.000 description 4
- 230000003292 diminished Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
- F41A21/28—Gas-expansion chambers; Barrels provided with gas-relieving ports
Definitions
- lI ⁇ he object of my invention is to get the best effectpossible ofthe powder consumed by keeping up an increased combustion until the ball or projectile has left the mouth-of the gun.
- the figure is a longitudinal section of a cannon.
- A is the barrel; B, the breech-pin; C, the projectile; D, the tube through which there is conducted to the powder in the explodingchamber.
- E is the exploding-chamber, and F the vent-hole leading to the outside of the gun and provided with some one of the well-known methods of igniting the powder within.
- the tube D is securely fastened to the breech-pin B, the other end terminating exactly at one-half the distance between the breech-pin and the projectile, thereby igniting the powder in the center, causing it to burn in both directions; but as the area toward the breech is constantly increasing, consequently more powder is burned pin, as shown in the drawing.
Description
J..H. STEWART.
'Patented Oct. 16, 1883.
UNITED STATES PATENT OFFICE,
.IU-LIUS H. STEWART, OF SAN FRANCISCO, CALIFORNIA.
BREEmCH-LOADING ORDNANCE.
1 SPECIFICATION forming part 0f Letters Patent No. 286,649, dated October 16, 1883. Y
Application filed December 14, 1882.
o all whom it may concern:
Be it known that I, JULIUs HENRY STEWART, a citizen of the United States, residing in the city and county of San Francisco, and State of California, have invented a new and useful Improvement in Fire-Arms, of which this, with4 the accompanying drawing, is a specification.
lI`he object of my invention is to get the best effectpossible ofthe powder consumed by keeping up an increased combustion until the ball or projectile has left the mouth-of the gun.
The figure is a longitudinal section of a cannon.
A is the barrel; B, the breech-pin; C, the projectile; D, the tube through which there is conducted to the powder in the explodingchamber. E is the exploding-chamber, and F the vent-hole leading to the outside of the gun and provided with some one of the well-known methods of igniting the powder within.
It will be observed that' the tube D is securely fastened to the breech-pin B, the other end terminating exactly at one-half the distance between the breech-pin and the projectile, thereby igniting the powder in the center, causing it to burn in both directions; but as the area toward the breech is constantly increasing, consequently more powder is burned pin, as shown in the drawing.
` ber E.
I wish to call special attention to the curved sides ofthe lower half of the exploding-cham- I have discovered by experiment,
since my application, that this particular form f is conducive of far better results, which is shown by the greater penetration of the pro- (No model jectile, than any other form, for the reasonthat 4o when the powder is first exploded the explosion takes place at the end of the tube D which is located in that part of the chamber which has an area equal to that of the projectile. Consequently the smallest quantity of powder is being burned while the` inertia of the projectile is being overcome. It is obvious that after the projectile has once been put in motion, and it can be followed up with an accelerating power-s-uch as would be the case by the combustion of a continuous and increasing quantity of powder until the projectile has reached the mouth of the gun-the greatest possible velocity would be acquired, and to produce this result I burn as little powder as possible at the commencement, and as much as possible at the end of the explosion, and that this 1re`sult is obtained in actual practice, repeated experiments have proven. I also claim another greatadvantageby exploding the powderin this particular manner. It is a well-known fact that in ordinary guns the greatest strain, and consequently the greatest recoil, is produced by putting the projectile 'in motionthat is, by
overcoming its inertia; but by my method of 6 5 burning powder the inertia is overcome so gradually that the strain is greatly diminished, Y
thereby prolonging the life of the gun.
Having illustrated and described my invention, what I deem new, and desire to obtain by 7o Letters Patent, is-
A fire-arm with an exploding-chamber having curved sides, in combination with the tube D, substantially as and for the purpose set forth.
J. H. STEVART.
Witnesses:
G. L. PIERCE, JOHN E. HAMILL.
Publications (1)
Publication Number | Publication Date |
---|---|
US286649A true US286649A (en) | 1883-10-16 |
Family
ID=2355846
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US286649D Expired - Lifetime US286649A (en) | stewaet |
Country Status (1)
Country | Link |
---|---|
US (1) | US286649A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2455080A (en) * | 1944-12-04 | 1948-11-30 | Powell | Ordnance chambrage and cartridge case |
US20070149696A1 (en) * | 2003-09-26 | 2007-06-28 | Basf Aktiengesellschaft | Aqueous dispersions of copolymers production thereof and use of the same |
-
0
- US US286649D patent/US286649A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2455080A (en) * | 1944-12-04 | 1948-11-30 | Powell | Ordnance chambrage and cartridge case |
US20070149696A1 (en) * | 2003-09-26 | 2007-06-28 | Basf Aktiengesellschaft | Aqueous dispersions of copolymers production thereof and use of the same |
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