US232210A - Primer for cannon - Google Patents
Primer for cannon Download PDFInfo
- Publication number
- US232210A US232210A US232210DA US232210A US 232210 A US232210 A US 232210A US 232210D A US232210D A US 232210DA US 232210 A US232210 A US 232210A
- Authority
- US
- United States
- Prior art keywords
- cannon
- tube
- spring
- primer
- vent
- 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
- 238000005219 brazing Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
- F42C15/28—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges operated by flow of fluent material, e.g. shot, fluids
- F42C15/29—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges operated by flow of fluent material, e.g. shot, fluids operated by fluidic oscillators; operated by dynamic fluid pressure, e.g. ram-air operated
Definitions
- Friction and percussion tubes have heretofore been made for insertion in the vent-holes of cannon to fire the same; but, as well known, the vent becomes enlarged by use, so that the tubes fit loosely, and either blow out without igniting the charge in the cannon, or else the tubes break off below the firing-wire, on account of not being solidly held.
- the object of my invention is to provide for holding priming-tubes securely, and thus insure their proper operation; and in yinvention consists in a spring combined with the priming-tube, which spring expands to the size of the vent and holds the tube with the, necessary amount of friction against the walls of the vent. 4
- Figure 1 is a longitudinal section of the breech portion of a cannon with my improved priming-tube applied in the vent.
- Fig. 2 is a perspective View of theprimer.
- A is the tube of the, primer, provided with the friction-wire a,'as usual; and b is the spring attached to the'tube, which spring constitutes my improvement.
- the spring may be a prolongation of the tube bent back to the desired position.
- the spring may be of a shape for fitting 4o snugly to the tube when pressed thereon, so as not to materially increase the size of the tube, and also to fit the walls of the vent closely.
- the outer surface of the spring will preferably be roughened to insure greater trio-" 5 tion.
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Window Of Vehicle (AREA)
Description
(ModeL) J. B. RODMAN.
Primer for Cannon.
No. 232,210; Patented Sept. 14, i880.'
' WITNESSES: INVENTOR:
' TORNEYS.
UNITED STATES PATENT FFICE.
JOHN B. RODMAN, OF FORT BROWN, TEXAS.
PRIMER FOR CANNON.
SPECIFICATION forming part of Letters Patent No. 232,210, dated September 14, 1880.
Application filed July 16, 1880.
To all whom it may concern:
Be it known that I, JOHN'B. RODMAN, of Fort Brown, in the county of Cameron and State of Tex-as, have invented a new and useful Improvement in Primers for Cannon, of which the following is a specification.
Friction and percussion tubes have heretofore been made for insertion in the vent-holes of cannon to fire the same; but, as well known, the vent becomes enlarged by use, so that the tubes fit loosely, and either blow out without igniting the charge in the cannon, or else the tubes break off below the firing-wire, on account of not being solidly held.
The object of my invention is to provide for holding priming-tubes securely, and thus insure their proper operation; and in yinvention consists in a spring combined with the priming-tube, which spring expands to the size of the vent and holds the tube with the, necessary amount of friction against the walls of the vent. 4 In the accompanying drawings, forming part of this specification, Figure 1 is a longitudinal section of the breech portion of a cannon with my improved priming-tube applied in the vent. Fig. 2 is a perspective View of theprimer.
Similar letters of reference indicate corresponding parts.
A is the tube of the, primer, provided with the friction-wire a,'as usual; and b is the spring attached to the'tube, which spring constitutes my improvement.
(Model) The spring I) is made of suitable material, 3
and attached to the lower end of the tube by brazing, riveting, or other suitable means; or the spring may be a prolongation of the tube bent back to the desired position.
The spring may be of a shape for fitting 4o snugly to the tube when pressed thereon, so as not to materially increase the size of the tube, and also to fit the walls of the vent closely. The outer surface of the spring will preferably be roughened to insure greater trio-" 5 tion.
It will be seen that when the tube A is inserted in the vent ot' the cannon, as usual, the spring b will insure a tight fit, so that the tube is solidly held, and with sufficient fric- 50 with the tube A, that carries the friction-wire, 60
substantially as and for the purpose specified.
JOHN BLACK RODMAN.
Witnesses:
JAMES A. BROWNE, LOUIS KOWALSKI.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US232210A true US232210A (en) | 1880-09-14 |
Family
ID=2301580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US232210D Expired - Lifetime US232210A (en) | Primer for cannon |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US232210A (en) |
-
0
- US US232210D patent/US232210A/en not_active Expired - Lifetime
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