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.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
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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