US133929A - Improvement in primers for cartridges - Google Patents
Improvement in primers for cartridges Download PDFInfo
- Publication number
- US133929A US133929A US133929DA US133929A US 133929 A US133929 A US 133929A US 133929D A US133929D A US 133929DA US 133929 A US133929 A US 133929A
- Authority
- US
- United States
- Prior art keywords
- cup
- primers
- cartridges
- improvement
- powder
- 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 12
- 239000002184 metal Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004642 transportation engineering Methods 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
- F42B5/26—Cartridge cases
- F42B5/36—Cartridge cases modified for housing an integral firing-cap
Definitions
- Said primers are composed of cups or disks, 4 as described by Figs. 1, 2, 3, and 4.
- Figure l is the outer cup, having its closed end concaved.
- Fig. 2 is a cup made from thin metal and filled with fulminatin g powder.
- Fig. 3 is the anvil disk or cup, composed of bars or a grate of metal, made in such form as may be deemed practicable, through which the gases may pass into the cartridge through a hole in the base of the shell.
- Fig. 4 is a disk or modified form of a cup which may be used for holding the fulminating powder.
- Fig. 8 is an end view of. Fig. 3.
- Fig. 2 or Fig. 4 be in g filled with fulminating powder, is inserted in anvilcup, Fig. 3. These two are then inserted within cup, Fig. 1, as shown in Fig. 5. The cup, Fig. l is then crimped or closed over cup, Fig. 3, as shown in Fig. 6. The primer is then inserted within the base of the cartridgeshell, as shown in Fig. 7. The primer. being struck by the firing-pin or exploder of the fire-arm the fuminating powder explodes, bursting the lining-cup, Fig. 2, and the fire is communicated to the charge through the openings in cup, Fig. 3, and the hole a in the cartridgeshell. Cup, Fig.
- the object of this invention is to produce a primer with an anvil nearly in the line of the firing-pin to prevent the fulminating powder from being driven out or displaced by the blow of the same, and also to bring the surface of the outer cup nearer that of the anvil to insure certainty of ignition with a weaker blow than otherwise; and also to carry the outer surface of the primer below the plane of the head of the cartridge for greater safety in handling or transportation.
Description
De W. C. FARRINGTON.
Primers fnr Cartridges.
No. 133,929, Patented Dec-17,1872.
AM PHOT0-LITHUGIMPHIG ClZIVJ/OSBURNKS PROCESS) UNITED STATES PATENT QFFICE- IMPROVEMENT IN PRIMERS FOR CARTRIDGES.
Specification forming part of Letters Patent N0. 133,929, dated December 17, 1872.
To all whom it may concern:
Be it known that I, DE WITT O. FARRING-' TON, of Lowell, county of Middlesex, and Comlnonwealth of Massachusetts, have invented an Improvement in Cartridge Primers, of which the following is a specification:
Said primers are composed of cups or disks, 4 as described by Figs. 1, 2, 3, and 4.
Figure l is the outer cup, having its closed end concaved. Fig. 2 is a cup made from thin metal and filled with fulminatin g powder. Fig. 3 is the anvil disk or cup, composed of bars or a grate of metal, made in such form as may be deemed practicable, through which the gases may pass into the cartridge through a hole in the base of the shell. Fig. 4 is a disk or modified form of a cup which may be used for holding the fulminating powder. Fig. 8 is an end view of. Fig. 3.
In assembling the parts, Fig. 2 or Fig. 4:, be in g filled with fulminating powder, is inserted in anvilcup, Fig. 3. These two are then inserted within cup, Fig. 1, as shown in Fig. 5. The cup, Fig. l is then crimped or closed over cup, Fig. 3, as shown in Fig. 6. The primer is then inserted within the base of the cartridgeshell, as shown in Fig. 7. The primer. being struck by the firing-pin or exploder of the fire-arm the fuminating powder explodes, bursting the lining-cup, Fig. 2, and the fire is communicated to the charge through the openings in cup, Fig. 3, and the hole a in the cartridgeshell. Cup, Fig. 3, is made of thick metal and forms an anvil, upon which to explode'the fulminatin g powder when the outer cup is driven in by the firing-pin or exploder. v The object of this invention is to produce a primer with an anvil nearly in the line of the firing-pin to prevent the fulminating powder from being driven out or displaced by the blow of the same, and also to bring the surface of the outer cup nearer that of the anvil to insure certainty of ignition with a weaker blow than otherwise; and also to carry the outer surface of the primer below the plane of the head of the cartridge for greater safety in handling or transportation.
I claim as my invention- LiThe primer herein described, consisting of an outer cup and an inner perforated disk or cup,when the latter is lined and primed, as set forth. 7
2. The combination of an outer cup having a concave base, and an inner anvil cup or disk having two or more perforations, with a bridge across the center, substantially as shown, for the purposes set forth.
DE'WITT CLINTON FARRINGTON.
Witnesses:
WALTER H. MGDANIELS, WILLIS FARRINGTON.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US133929A true US133929A (en) | 1872-12-17 |
Family
ID=2203345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US133929D Expired - Lifetime US133929A (en) | Improvement in primers for cartridges |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US133929A (en) |
-
0
- US US133929D patent/US133929A/en not_active Expired - Lifetime
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